[Federal Register Volume 83, Number 220 (Wednesday, November 14, 2018)]
[Rules and Regulations]
[Pages 56713-56734]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2018-24747]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Parts 51, 60, and 63

[EPA-HQ-OAR-2016-0510; FRL-9986-42-OAR]
RIN 2060-AS95


Testing Regulations for Air Emission Sources

AGENCY: Environmental Protection Agency (EPA).

ACTION: Final rule.

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SUMMARY: This action amends certain existing testing regulations to 
reflect corrections, updates, and the addition of alternative equipment 
and methods for source testing of emissions. These revisions will 
improve the quality of data and provide flexibility in the use of

[[Page 56714]]

approved alternative procedures. The revisions do not impose any new 
substantive requirements on source owners or operators.

DATES: The final rule is effective on January 14, 2019. The 
incorporation by reference materials listed in the rule are approved by 
the Director of the Federal Register as of January 14, 2019.

ADDRESSES: The EPA has established a docket for this action under 
Docket ID No. EPA-HQ-OAR-2016-0510. All documents in the docket are 
listed on the http://www.regulations.gov website. Although listed in 
the index, some information is not publicly available, e.g., 
confidential business information or other information whose disclosure 
is restricted by statute. Certain other material, such as copyrighted 
material, is not placed on the internet and will be publicly available 
only in hard copy. Publicly available docket materials are available 
electronically through http://www.regulations.gov.

FOR FURTHER INFORMATION CONTACT: Ms. Lula H. Melton, Office of Air 
Quality Planning and Standards, Air Quality Assessment Division (E143-
02), Environmental Protection Agency, Research Triangle Park, NC 27711; 
telephone number: (919) 541-2910; fax number: (919) 541-0516; email 
address: [email protected].

SUPPLEMENTARY INFORMATION: The supplementary information in this 
preamble is organized as follows:

Table of Contents

I. General Information
    A. Does this action apply to me?
    B. What action is the agency taking?
    C. Judicial Review
II. Background
III. Summary of Amendments
    A. Method 201A of Appendix M of Part 51
    B. Method 204 of Appendix M of Part 51
    C. Method 205 of Appendix M of Part 51
    D. General Provisions (Subpart A) of Part 60
    E. Fossil-Fuel-Fired Steam Generators (Subpart D) Part 60
    F. Electric Utility Steam Generating Units (Subpart Da) Part 60
    G. Industrial-Commercial-Institutional Steam Generating Units 
(Subpart Db) Part 60
    H. Small Industrial-Commercial-Institutional Steam Generating 
Units (Subpart Dc) Part 60
    I. Municipal Waste Combustors for Which Construction is 
Commenced After December 20, 1989 and on or Before September 20, 
1994 (Subpart Ea) Part 60
    J. Glass Manufacturing Plants (Subpart CC) Part 60
    K. New Residential Wood Heaters, New Residential Hydronic 
Heaters and Forced-Air Furnaces (Subpart QQQQ) Part 60
    L. Method 2B of Appendix A-1 of Part 60
    M. Method 5 of Appendix A-3 of Part 60
    N. Method 5B of Appendix A-3 of Part 60
    O. Method 5I of Appendix A-3 of Part 60
    P. Method 7 of Appendix A-4 of Part 60
    Q. Method 8 of Appendix A-4 of Part 60
    R. Method 18 of Appendix A-6 of Part 60
    S. Method 22 of Appendix A-7 of Part 60
    T. Method 26 of Appendix A-8 of Part 60
    U. Method 26A of Appendix A-8 of Part 60
    V. Test Method 28WHH of Appendix A-8 of Part 60
    W. Performance Specification 1 of Appendix B of Part 60
    X. Performance Specification 2 of Appendix B of Part 60
    Y. Performance Specification 3 of Appendix B of Part 60
    Z. Performance Specification 11 of Appendix B of Part 60
    AA. Performance Specification 15 of Appendix B of Part 60
    BB. Performance Specification 18 of Appendix B of Part 60
    CC. Procedure 1 of Appendix F of Part 60
    DD. General Provisions (Subpart A) Part 63
    EE. Wool Fiberglass Manufacturing (Subpart NNN) Part 63
    FF. Major Sources: Industrial, Commercial, and Institutional 
Boilers and Process Heaters (Subpart DDDDD) Part 63
    GG. Coal- and Oil-Fired Electric Utility Steam Generating Units 
(Subpart UUUUU) Part 63
    HH. Method 303 of Appendix A of Part 63
    II. Method 308 of Appendix A of Part 63
    JJ. Method 320 of Appendix A of Part 63
    KK. Method 323 of Appendix A of Part 63
    LL. Method 325A of Appendix A of Part 63
    MM. Method 325B of Appendix A of Part 63
IV. Public Comments on the Proposed Rule
V. Statutory and Executive Order Reviews
    A. Executive Order 12866: Regulatory Planning and Review and 
Executive Order 13563: Improving Regulation and Regulatory Review
    B. Executive Order 13771: Reducing Regulations and Controlling 
Regulatory Costs
    C. Paperwork Reduction Act (PRA)
    D. Regulatory Flexibility Act (RFA)
    E. Unfunded Mandates Reform Act (UMRA)
    F. Executive Order 13132: Federalism
    G. Executive Order 13175: Consultation and Coordination with 
Indian Tribal Governments
    H. Executive Order 13045: Protection of Children from 
Environmental Health Risks and Safety Risks
    I. Executive Order 13211: Actions Concerning Regulations That 
Significantly Affect Energy Supply, Distribution or Use
    J. National Technology Transfer and Advancement Act (NTTAA) and 
1 CFR part 51
    K. Executive Order 12898: Federal Actions to Address 
Environmental Justice in Minority Populations and Low-Income 
Populations
    L. Congressional Review Act (CRA)

I. General Information

A. Does this action apply to me?

    The revisions promulgated in this final rule apply to industries 
that are subject to the current provisions of 40 Code of Federal 
Regulations (CFR) parts 51, 60, and 63. We did not list all of the 
specific affected industries or their North American Industry 
Classification System (NAICS) codes herein since there are many 
affected sources in numerous NAICS categories. If you have any 
questions regarding the applicability of this action to a particular 
entity, consult either the air permitting authority for the entity or 
your EPA Regional representative as listed in 40 CFR 63.13.

B. What action is the agency taking?

    We are promulgating corrections and updates to regulations for 
source testing of emissions. More specifically, we are correcting 
typographical and technical errors, updating obsolete testing 
procedures, adding approved testing alternatives, and clarifying 
testing requirements.

C. Judicial Review

    Under section 307(b)(1) of the Clean Air Act (CAA), judicial review 
of this final rule is available by filing a petition for review in the 
United States Court of Appeals for the District of Columbia Circuit by 
January 14, 2019. Under section 307(d)(7)(B) of the CAA, only an 
objection to this final rule that was raised with reasonable 
specificity during the period for public comment can be raised during 
judicial review. Moreover, under section 307(b)(2) of the CAA, the 
requirements that are the subject of this final rule may not be 
challenged later in civil or criminal proceedings brought by the EPA to 
enforce these requirements.

II. Background

    The revisions to testing regulations for air emission sources were 
proposed in the Federal Register on January 26, 2018 (83 FR 3636). The 
public comment period ended March 27, 2018, and 83 comment letters were 
received from the public; 23 of the comment letters were relevant, and 
the other 60 comment letters were considered beyond the scope of the 
proposed rule. This final rule was developed based on public comments 
that the agency received on the proposed rule.

III. Summary of Amendments

A. Method 201A of Appendix M of Part 51

    In Method 201A, in section 12.5, the denominator of equation 24 is 
corrected

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as proposed; the proposed c'p in the denominator is changed 
to Cp' to be consistent with the nomenclature in section 
12.1. The cp in the numerator is changed to Cp 
also to be consistent with the nomenclature in section 12.1.

B. Method 204 of Appendix M of Part 51

    In Method 204, in section 8.2, the statement regarding equation 
204-2 is corrected to ``The NEAR must be <=0.05,'' as proposed.

C. Method 205 of Appendix M of Part 51

    In Method 205, section 2.1.1 is revised to allow the use of 
National Institute of Standards and Technology (NIST)-traceable 
transfer standards to calibrate the gas dilution system as proposed. 
The agency continues to believe that these standards are widely 
available and provide the accuracy necessary to perform the 
calibration. Section 2.1.1 is also revised as proposed to require 
testers to report the results of the calibration of the dilution system 
to enable the regulatory authority to review this information.

D. General Provisions (Subpart A) of Part 60

    In the General Provisions of part 60, Sec.  60.17(h) is revised as 
proposed to add ASTM D6216-12 to the list of incorporations by 
reference and to re-number the remaining consensus standards that are 
incorporated by reference in alpha-numeric order.

E. Fossil-Fuel-Fired Steam Generators (Subpart D) Part 60

    In a change from proposal, the allowed filter temperature in Sec.  
60.46(b)(2)(i) is not revised. Based on comments we received on the 
proposed revisions, we are deferring finalizing the proposed revisions 
of the temperature tolerances of probe and filter holder heating 
systems as part of this rulemaking. We will continue to review 
supporting information and data we received on the proposed rule and 
may propose either revisions or similar requirements as part of future 
rulemakings.

F. Electric Utility Steam Generating Units (Subpart Da) Part 60

    In a change from proposal, the allowed filter temperature in Sec.  
60.50Da (b)(1)(ii)(A) is not revised. Based on comments we received on 
the proposed revisions, we are deferring finalizing the proposed 
revisions of the temperature tolerances of probe and filter holder 
heating systems as part of this rulemaking. We will continue to review 
supporting information and data we received on the proposed rule and 
may propose either revisions or similar requirements as part of future 
rulemakings.

G. Industrial-Commercial-Institutional Steam Generating Units (Subpart 
Db) Part 60

    In a change from proposal, the allowed filter temperature in Sec.  
60.46b(d)(4) is not revised. Based on comments we received on the 
proposed revisions, we are deferring finalizing the proposed revisions 
of the temperature tolerances of probe and filter holder heating 
systems as part of this rulemaking. We will continue to review 
supporting information and data we received on the proposed rule and 
may propose either revisions or similar requirements as part of future 
rulemakings.

H. Small Industrial-Commercial-Institutional Steam Generating Units 
(Subpart Dc) Part 60

    In a change from proposal, the allowed filter temperature in Sec.  
60.45c(a)(5) is not revised. Based on comments we received on the 
proposed revisions, we are deferring finalizing the proposed revisions 
of the temperature tolerances of probe and filter holder heating 
systems as part of this rulemaking. We will continue to review 
supporting information and data we received on the proposed rule and 
may propose either revisions or similar requirements as part of future 
rulemakings.

I. Municipal Waste Combustors for Which Construction is Commenced After 
December 20, 1989 and on or Before September 20, 1994 (Subpart Ea) Part 
60

    In a change from proposal, the allowed filter temperature in Sec.  
60.58a(b)(3) is not revised. Based on comments we received on the 
proposed revisions, we are deferring finalizing the proposed revisions 
of the temperature tolerances of probe and filter holder heating 
systems as part of this rulemaking. We will continue to review 
supporting information and data we received on the proposed rule and 
may propose either revisions or similar requirements as part of future 
rulemakings.

J. Glass Manufacturing Plants (Subpart CC) Part 60

    In a change from proposal, the allowed filter temperatures in 
Sec. Sec.  60.293(f) and 60.296(d)(2) are not revised. Based on 
comments we received on the proposed revisions, we are deferring 
finalizing the proposed revisions of the temperature tolerances of 
probe and filter holder heating systems as part of this rulemaking. We 
will continue to review supporting information and data we received on 
the proposed rule and may propose either revisions or similar 
requirements as part of future rulemakings.

K. New Residential Wood Heaters, New Residential Hydronic Heaters and 
Forced-Air Furnaces (Subpart QQQQ) Part 60

    In subpart QQQQ, in Method 28WHH, in section 13.5.1, equation 8 is 
corrected as proposed.

L. Method 2B of Appendix A-1 of Part 60

    In Method 2B, in section 12.1, the definition of ambient carbon 
dioxide concentration is revised as proposed. The agency continues to 
believe that the global monthly mean (CO2)a 
concentration varies over time. Also, a website link is added to the 
definition as specified at proposal.

M. Method 5 of Appendix A-3 of Part 60

    In a change from proposal, allowed filter temperatures in Method 5, 
sections 2.0, 6.1.1.2, 6.1.1.6, 6.1.1.7, and 8.5 are not revised. Based 
on comments we received on the proposed revisions, we are deferring 
finalizing the proposed revisions of the temperature tolerances of 
probe and filter holder heating systems as part of this rulemaking. We 
will continue to review supporting information and data we received on 
the proposed rule and may propose either revisions or similar 
requirements as part of future rulemakings.
    Section 6.1.1.9 is revised as proposed to allow the use of a single 
temperature sensor in lieu of two temperature sensors on the dry gas 
meter as allowed by Technical Information Document 19 (TID-19) and the 
approved broadly applicable alternative, ALT-117 (see https://www.epa.gov/emc). Consistent with our response to the comment regarding 
allowing flexibility for the weighing container in section 11.2.1, 
Method 5B, the first sentence in section 11.2.1, Method 5 is revised 
similarly.

N. Method 5B of Appendix A-3 of Part 60

    In a change from proposal, the allowed filter temperatures in 
Method 5B, sections 2.0, 6.1, and 8.2 are not revised. Based on 
comments we received on the proposed revisions, we are deferring 
finalizing the proposed revisions of the temperature tolerances of 
probe and filter holder heating

[[Page 56716]]

systems as part of this rulemaking. We will continue to review 
supporting information and data we received on the proposed rule and 
may propose either revisions or similar requirements as part of future 
rulemakings.
    Section 11.0 is revised as proposed to replace the reference to 
Method 5, section 11.0 with specific analytical procedures and to 
report the results using Figure 5B-1 for complete data review. Section 
17.0 is revised as proposed to delete the word ``Reserved'' from the 
title, and Figure 5B-1 (Analytical Data Sheet) is added.

O. Method 5I of Appendix A-3 of Part 60

    In a change from proposal, Method 5I, sections 2.1 and 8.5.2.2 are 
not revised to tighten the allowed filter temperatures. Based on 
comments we received on the proposed revisions, we are deferring 
finalizing the proposed revisions of the temperature tolerances of 
probe and filter holder heating systems as part of this rulemaking. We 
will continue to review supporting information and data we received on 
the proposed rule and may propose either revisions or similar 
requirements as part of future rulemakings.

P. Method 7 of Appendix A-4 of Part 60

    In Method 7, sections 10.1.2 and 11.3 reference erroneous sections; 
the correct section is inserted, as proposed. The proposed referenced 
section 10.1.1.2 is changed to 10.1.1 to include procedures in both 
sections 10.1.1.1 and 10.1.1.2.

Q. Method 8 of Appendix A-4 of Part 60

    As proposed, Method 8, sections 6.1.1.1 through 6.1.1.4 are 
renumbered to 6.1.1.2 through 6.1.1.5; a new section 6.1.1.1 is added 
to clarify the requirements that apply to the probe nozzle; and, in 
response to comments, Figure 8-1 (Sulfuric Acid Sampling Train) is 
corrected by: (1) Modifying the impinger graphics to make it consistent 
with the text in section 6.1.1.4 and (2) revising the proposed label S-
Type Pitot Tube to Type S Pitot Tube for consistency. The proposed 
first sentence in section 6.1.1.1 is revised to ``Borosilicate or 
quartz glass with a sharp, tapered leading edge and coupled to the 
probe liner using a polytetrafluoroethylene (PTFE) or glass-lined union 
(e.g., fused silica, Silico, or equivalent).'' Based on a public 
comment that recommended adding Silco coated stainless steel unions as 
an option for Teflon unions, and for consistency with other test 
methods, we have replaced Teflon with the generic option 
polytetrafluoroethylene (PTFE).

R. Method 18 of Appendix A-6 of Part 60

    In Method 18, in section 13.1, the erroneous paragraph (c) 
designation is re-designated as (b), as proposed.

S. Method 22 of Appendix A-7 of Part 60

    In Method 22, sections 11.2.1 and 11.2.2 are revised as proposed to 
allow digital photography to be used for a subset of the recordkeeping 
requirements. As proposed, section 11.2.3 is added to specify the 
requirements for digital photographic records. In response to comments 
on the proposal, the next to the last sentence in section 11.2.3 
regarding photographs that must be taken within 15 minutes of the 
observation period is revised from the proposal, and another sentence 
is added to provide clarity. The revised and new sentences read: ``The 
photograph(s) representing the environmental conditions including the 
sky conditions and the position of the sun relative to the observer and 
the emission point must be taken within a reasonable time of the 
observation (i.e., 15 minutes). When observations are taken from 
exactly the same observation point on a routine basis (e.g., daily) and 
as long as there are no modifications to the units depicted, only a 
single photograph each day is necessary to document the observer's 
location relative to the emissions source, the process unit being 
observed, and the location of potential and actual emission points.'' 
The agency notes that ALT-109 (see https://www.epa.gov/emc) is the 
associated broadly applicable alternative that allows the use of 
digital photographs for specific recordkeeping requirements.

T. Method 26 of Appendix A-8 of Part 60

    As proposed, Method 26, section 6.2.2 is revised to allow the use 
of glass sample storage containers as an option to allow flexibility 
and to be consistent with Method 26A. The proposed title of section 
6.2.2, ``Storage Bottles,'' is changed to ``Storage Containers'' to be 
consistent with the language in section 6.2.2.

U. Method 26A of Appendix A-8 of Part 60

    As proposed, in Method 26A, section 6.2.1 is revised to remove the 
language regarding sample storage containers. In response to comments 
on our proposal, we have determined that high-density polyethylene is 
an acceptable material for sample storage containers in addition to the 
currently allowed glass. Therefore, in a new section 6.2.4., we have 
specified that both high-density polyethylene and glass are acceptable 
sample storage containers.

V. Test Method 28WHH of Appendix A-8 of Part 60

    In Test Method 28WHH, equation 8 in section 13.5.1 is corrected, as 
proposed.

W. Performance Specification 1 of Appendix B of Part 60

    As proposed, in Performance Specification 1, references to ASTM 
D6216-98 (in sections 2.1, 3.1, 6.1, 8.1(1), 8.1(3)(ii), 8.2(1), 
8.2(2), 8.2(3), 9.0, 12.1, 13.0, 13.1, 13.2, and 16.0 paragraph 8) are 
replaced with ASTM D6216-12. As noted at proposal, if the initial 
certification of the continuous opacity monitoring system (COMS) has 
already occurred using D6216-98, D6216-03, or D6216-07, it will not be 
necessary to recertify using D6216-12. In response to comments on our 
decision to add ASTM D6216 to the list of consensus standards, the 
April 1998 publication date for ASTM D6216 in paragraph 8 in section 
16.0 is replaced with October 2012, the ASTM D6216-12 publication date. 
In response to comments, for consistency with section 2.1, and for 
purposes of clarification, the note at the end of section 2.1 is added 
to section 13.0.

X. Performance Specification 2 of Appendix B of Part 60

    In Performance Specification 2, section 13.2 is replaced with a 
table that indicates the relative accuracy performance specifications, 
as proposed. Given that the equals to (=) signs were erroneously 
omitted from several of the < and > values during publication of the 
table in the proposed rule, these values have been corrected.

Y. Performance Specification 3 of Appendix B of Part 60

    In Performance Specification 3, the two sentences in section 12.0 
that read, ``Calculate the arithmetic difference between the RM and the 
CEMS output for each run. The average difference of the nine (or more) 
data sets constitute the RA.'' are deleted, as proposed; these two 
sentences are no longer necessary since equations 3-1 and 3-2 would be 
moved from section 13.2 to section 12.0. The sentence, ``Calculate the 
RA using equations 3-1 and 3-2.'' is added to the beginning of section 
12.0.

Z. Performance Specification 11 of Appendix B of Part 60

    In Performance Specification 11, section 13.1, the word ``average'' 
erroneously exists in the second sentence and is deleted, as proposed.

[[Page 56717]]

AA. Performance Specification 15 of Appendix B of Part 60

    As proposed, in Performance Specification 15, section 13.0 is added 
as ``Method Performance [Reserved].''

BB. Performance Specification 18 of Appendix B of Part 60

    As proposed, in Performance Specification 18, in section 11.8.7, 
the last sentence is revised to clarify the duration of the drift 
check. In Table 1, the erroneous acronym ``NO2'' is replaced 
with ``NO,'' as proposed. In the appendix of Performance Specification 
18, the inadvertently omitted reserved section 12.0 is added, as 
proposed.

CC. Procedure 1 of Appendix F of Part 60

    As proposed, in Procedure 1, in section 5.1.2 (1), the sentence 
immediately following the table that reads, ``Challenge the CEMS three 
times at each audit point, and use the average of the three responses 
in determining accuracy.'' is replaced with, ``Introduce each of the 
audit gases, three times each for a total of six challenges. Introduce 
the gases in such a manner that the entire CEMS is challenged. Do not 
introduce the same gas concentration twice in succession.'' In order to 
obtain six distinct readings during the cylinder gas audit (CGA), the 
same gas must not be introduced twice in succession, and this revised 
language accurately reflects this standard scientific practice. As also 
proposed, in section 5.1.2 (3), the reference to EPA's traceability 
protocol for gaseous calibration standards is updated, and the language 
regarding the use of EPA Method 205 for dilution of audit gases is 
clarified.

DD. General Provisions (Subpart A) of Part 63

    Sections 63.7(g)(2), 63.7(g)(2)(v), and 63.8(e)(5)(i) of the 
General Provisions (subpart A) of part 63 are revised, as proposed, to 
require the reporting of specific test data for continuous monitoring 
system performance evaluation tests and ongoing quality assurance (QA) 
tests. These data elements are required regardless of the format of the 
report, i.e., electronic or paper. These modifications will ensure that 
performance evaluation and QA test reporting include all data necessary 
for the compliance authority to assess and assure the quality of the 
reported data and that the reported information describes and 
identifies the specific unit covered by the evaluation test report. In 
response to comment, we specified the level of reporting needed for 
continuous parameter monitoring systems (CPMS) versus other continuous 
monitoring systems including continuous emission monitoring systems 
(CEMS), COMS, and predictive emissions monitoring systems (PEMS).

EE. Wool Fiberglass Manufacturing (Subpart NNN) Part 63

    In a change from proposal, the allowed filter temperature in Sec.  
63.1385(a)(5) is not revised. Based on comments we received on the 
proposed revisions, we are deferring finalizing proposed revisions of 
the temperature tolerances of probe and filter holder heating systems 
as part of this rulemaking. We will continue to review supporting 
information and data we received on the proposed rule and may propose 
either revisions or similar requirements as part of future rulemakings.

FF. Major Sources: Industrial, Commercial, and Institutional Boilers 
and Process Heaters (Subpart DDDDD) Part 63

    As proposed, in Table 6 of subpart DDDDD, row 1.f. is revised to 
allow the use of EPA SW-846-7471B (for liquid samples) in addition to 
EPA SW-846-7470A for measuring mercury to allow for compliance 
flexibility.

GG. Coal- and Oil-Fired Electric Utility Steam Generating Units 
(Subpart UUUUU) Part 63

    In a change from proposal, the allowed filter temperature in Sec.  
63.10010(h)(7)(i)(1) is not revised. Based on comments we received on 
the proposed revisions, we are deferring finalizing proposed revisions 
of the temperature tolerances of probe and filter holder heating 
systems as part of this rulemaking. We will continue to review 
supporting information and data we received on the proposed rule and 
may propose either revisions or similar requirements as part of future 
rulemakings.
    As proposed, in Table 5, Method 5I is specified as a test method 
option because, as explained at proposal, Method 5I is designed for low 
particulate matter (PM) application.

HH. Method 303 of Appendix A of Part 63

    In Method 303, section 12.4, equation 303-3 is corrected, as 
proposed, by inserting ``where y = '' in front of the equation.

II. Method 308 of Appendix A of Part 63

    As proposed, in Method 308, deionized distilled water replaces the 
aqueous n-proponal solution; the affected sections are 2.0, 7.2.2, 
7.2.3.3, and 11.3.2. Section 7.2.2, which defines the aqueous n-
proponal solution, is removed, as proposed. In section 7.2.3.3, the 
erroneous ``four'' is replaced as proposed, with ``three'' in the 
sentence that reads ``Pipette 5, 15, and 25 ml of this standard, 
respectively into four 50-ml volumetric flasks.'' Section 8.1.2 is 
revised, as proposed, to require a leak check prior to the sampling run 
(in addition to after the sampling run) for QA purposes; as explained 
at proposal, requiring a leak check prior to the sampling run would 
potentially save time and money. In section 9.1, methanol spike 
recovery check is added as a quality control (QC) measure in Table 9.1, 
as proposed. In section 12.1, variables used in equations 308-4 and 
308-5 are added and section 12.5, which includes equations 308-4 and 
308-5, is added, as proposed. In section 13.0, the title ``Reserved'' 
is replaced with ``Method Performance'' and QA requirements would be 
added to be consistent with other methods, as proposed. The erroneous 
proposed paragraph (a) of section 13.0 is replaced, as proposed, with 
``Calibration standards must meet the requirements in section 10.2.1 or 
10.2.2 as applicable.''

JJ. Method 320 of Appendix A of Part 63

    In section 8.2.2.4, the denominator in equation 2 is corrected from 
PSS to PS, as proposed. In section 9.2.3, the 
word ``where'' in the statement, ``Calculate the dilution ratio using 
the tracer gas as follows: where:'' is deleted, as proposed. Also in 
section 9.2.3, the inadvertently superscripted ``dir'' on the 
definition of spike is subscripted, as proposed.

KK. Method 323 of Appendix A of Part 63

    In Method 323, section 12.9, the denominator in equation 323-8 is 
corrected, as proposed.

LL. Method 325A of Appendix A of Part 63

    In Method 325A, section 8.2.1.3 is revised, as proposed, to clarify 
that only one extra sampling site is required near known sources of 
volatile organic compounds (VOCs) when the source is located both 
within 50 meters of the boundary and between two monitors. Based on a 
public comment we received on the proposed regulatory text, wording 
changes have been made to the language in section 8.2.1.3. As proposed, 
the label under Figure 8.1 is corrected from ``Refinery (20% angle)'' 
to ``Refinery (20[deg] angle).'' Section 8.2.3.2 is revised, as 
proposed, to include facilities with a monitoring perimeter length 
equal to 7,315 meters (24,000 feet). Section 8.2.3.3 is added, as

[[Page 56718]]

proposed, to provide clarification and an equivalent procedure in 
Option 2 (linear distance between sites) for site locations that 
parallel section 8.2.2.2.4 in Option 1 (radial distance between sites). 
In response to comments, section 8.4.3 is added to address worker 
safety during extenuating circumstances.

MM. Method 325B of Appendix A of Part 63

    In Method 325B, section 9.3.2 is revised, as proposed, to correct 
an error in the number of field blank samples required for a sampling 
period and to provide consistency with the sample analysis required in 
Method 325B. In sections 9.13 and 11.3.2.5, the erroneous reference to 
section 10.6.3 is corrected to 10.0, as proposed. Also in section 
11.3.2.5, the erroneous reference to section 10.9.5 is corrected to 
9.13, as proposed. Section 12.2.2 is revised, as proposed, to correct 
the calculation of target compound concentrations at standard 
conditions, and the erroneous reference to Ustd in the note 
in section 12.2.2 is revised to UNTP. Sections 12.2.3 and 
12.2.4 are deleted, as proposed, because the equations for target 
concentrations are incorrect. Table 17-1 is revised, as proposed, to 
add inadvertently omitted QC criteria from section 9.3.3.

IV. Public Comments on the Proposed Rule

    Eighty-three (83) comment letters were received from the public; 23 
of the comment letters were relevant, and the other 60 comment letters 
were considered as beyond the scope of the proposed rule. The public 
comments and the agency's responses are summarized in the Response to 
Comments document located in the docket for this rule. See the 
ADDRESSES section of this preamble.
    A summary of the relevant portions of significant comments that we 
received on the proposal and agency responses are presented below.
    Comment: Three commenters provided comments on our proposed 
revisions to the General Provisions (Subpart A) of Part 63. One 
commenter stated that the proposed revisions impose new requirements on 
CMS performance evaluations and QA testing for types of monitors not 
previously subject to such requirements. Another commenter remarked 
that the proposed revisions to various requirements in Part 63 
revisions were vague. Yet another commenter remarked that the proposed 
revisions to Sec.  63.8(e)(5) would shorten the CMS performance 
evaluation reporting period for CMS associated with performance tests.
    Response: We disagree with the comment that the proposed changes to 
Sec.  63.8(e)(5)(i) would impose new requirements given that at 
proposal, the agency had explained that they were intended to clarify 
and codify data elements and reporting requirements that are already 
routinely requested by the Administrator's delegated authorities. With 
regard to Sec.  63.8(e)(5), in a change from proposal, we have retained 
the existing requirement that allows for the simultaneous submission of 
the report of a CMS performance evaluation with results of performance 
testing required under 40 CFR 63.7. We also edited the final rule 
language for 40 CFR 63.7(g)(2)(v) to improve clarity and to eliminate 
confusion.
    Comment: Fifteen commenters provided comments arguing against the 
proposal to tighten the filter temperature tolerance in 40 CFR 
60.46(b)(2)(i); 60.50Da(b)(1)(ii)(A); 60.45c(a)(5); 60.58a(b)(3); 
60.293(f); 60.296(d)(2); 63.1385(a)(5); and sections 2.0, 6.1.1.2, 
6.1.1.6, 6.1.1.7 and 8.5 of Method 5, Appendix A-3 of Part 60. They 
cited issues that included: weather (e.g., ambient temperature 
fluctuations and windy conditions); costs; lack of justification and 
data for the revision; inconsistent language (e.g., the use of 
``shall'' vs. ``may'' and proposed revisions to temperature tolerance 
in Methods 5, 5B, and 5I but not in Methods 5D, 5E, and 5F); and safety 
risks. Nine commenters remarked that ambient conditions (cold climates, 
wind gusts, etc.) can cause temperature fluctuations that are difficult 
to manage. More specifically, one commenter stated that the reduced 
allowable temperature range would be problematic during testing in 
cold, windy ambient conditions that are persistent in the winter months 
in northern climates because the time required for temperature recovery 
after a component change in these conditions could add hours and 
possibly days to testing programs. One commenter remarked that the 
proposed 5 [deg]C is unattainable for sources in cold or 
windy climates.
    Eight commenters stated that alteration or replacement of equipment 
components would likely be necessary to achieve the proposed 
temperature tolerances resulting in additional costs. One commenter 
noted potential equipment improvements, such as increased probe sheath 
tubing diameter to make room for added insulation around every probe 
heater; re-design of filter heating ovens; improved sealing and 
insulation of the openings at the inlet and outlet of filter heating 
ovens; and/or for sources with high stack temperatures, more frequent 
use of air-cooled or water-cooled probes. One commenter remarked that 
this revision would force cold weather stack testers to replace or 
retrofit equipment with higher power heating devices and possibly more 
refined control devices which would be costly. One commenter remarked 
that this revision will most likely require air sampling equipment 
suppliers to redesign sample probes by either increasing sheath 
diameter, altering the placement or increasing the number of 
thermocouples used to control the probe heating system, and/or 
increasing the insulation around the sample liner. The commenter added 
that an increase in the diameter of the probe sheath would have a 
cascading effect either requiring test companies to purchase new sample 
hot boxes or retrofit existing sample hot boxes to accommodate the 
increased probe sheath diameter.
    Seven commenters stated that neither information nor data was 
provided to support, justify, or quantify the claimed increased 
precision of filterable PM measurements, and a few of these commenters 
noted that the Electric Power Research Institute (EPRI) paper that the 
EPA used as the basis for tightening the filter temperature tolerance 
was from a comparison of results measured at four coal-fired power 
plants.
    One commenter requested that the statement in Sec.  
60.50Da(b)(1)(ii)(A), ``The probe and filter holder heating system in 
the sampling train may be set to provide an average gas temperature of 
no greater than 160 5 [deg]C (320 9 [deg]F),'' 
be changed to, ``The probe and filter holder heating system in the 
sampling train shall be set to provide an average gas temperature of 
160 5 [deg]C (320 9 [deg]F),'' because they 
believe that this was the agency's intent. Similarly, another commenter 
requested that the statement in Sec.  60.296(d)(2), ``The probe and 
filter holder heating system may be set to provide a gas temperature no 
greater than 177 5 [deg]C (320 9 [deg]F),'' be 
changed to, ``The probe and filter holder heating system shall be set 
to provide an average gas temperature 160 5 [deg]C (320 
9 [deg]F),'' because they believe that this was the 
agency's intent. One commenter also recommended changing the sentence 
in Method 5B to, ``The collected sample is then heated in an oven at 
160 [deg]C (320 [deg]F) for 6 hours . . . ,'' to, ``The collected 
sample is then heated in an oven at 160 5 [deg]C (320 
9 [deg]F) for 6 hours . . .,'' to be internally consistent.
    Three commenters noted that if the temperature tolerances are 
changed in Method 5, methods that reference Method 5 (namely Method 5D, 
section

[[Page 56719]]

2.1; Method 5E, section 2.0; and Method 5F, section 2.0) would also 
need to be revised.
    Three commenters remarked that tightening the filter temperature 
tolerance conflicts with the assertion that the proposed rule will 
improve the quality of data but will not impose new substantive 
requirements. Two of the three commenters further remarked that the 
proposed rule does not meet the requirements of Executive Order 13771 
nor the Paperwork Reduction Act (PRA).
    Three commenters acknowledged that an improvement in measurement 
precision could benefit the data quality in limited situations, such as 
the Mercury and Air Toxics Standards (MATS).
    Four commenters remarked that if the proposed revisions to the 
temperature tolerances lead to a measurable change in reported PM 
emissions, sources that were previously in compliance with their 
emission standards may become non-compliant; one commenter added that 
the opposite situation may occur. One commenter stated that the 
proposed revision may have the unintended consequence of redefining the 
filterable PM being measured leading to either higher or lower PM 
measurements as compared to sampling runs conducted with wider 
tolerances.
    Two commenters mentioned that this revision could result in a 
potential safety risk. One of the commenters remarked that the added 
weight and handling difficulties associated with air- or water-cooled 
probes (if necessary to control the probe temperature) can increase 
safety risks to testing personnel, and the other commenter remarked 
that the proposed requirements may require the use of encapsulated 
probes which are heavy and cumbersome resulting in hazards.
    Response: In response to these comments and in a change from 
proposal, we are deferring finalizing proposed revisions of the 
temperature tolerances of probe and filter holder heating systems as 
part of this rulemaking. We will continue to review supporting 
information and data we received on the proposed rule and may propose 
either revisions or similar requirements as part of future rulemakings.

V. Statutory and Executive Order Reviews

    Additional information about these statutes and Executive Orders 
can be found at http://www2.epa.gov/laws-regulations/laws-and-executive-orders.

A. Executive Order 12866: Regulatory Planning and Review and Executive 
Order 13563: Improving Regulation and Regulatory Review

    This action is not a significant regulatory action and was, 
therefore, not submitted to the Office of Management and Budget (OMB) 
for review.

B. Executive Order 13771: Reducing Regulations and Controlling 
Regulatory Costs

    This action is considered an Executive Order 13771 deregulatory 
action. This final rule provides meaningful burden reduction by 
allowing regulated facilities the flexibility to use newly-approved 
alternative procedures for compliance demonstration purposes, which may 
result in lower labor costs for some facilities (e.g., allowing digital 
photography in lieu of manual documentation in EPA Method 22); lower 
compliance testing costs (e.g., additional sample storage container 
options now allowed by Method 26); reducing the likelihood of re-
testing (e.g., revised QA requirements in Method 308); and expediting 
data processing (e.g., simplified calculations in Method 325B).

C. Paperwork Reduction Act (PRA)

    This action does not impose an information collection burden under 
the PRA. The revisions do not substantively revise the existing 
information collection requirements but simply corrects, updates, and 
clarifies performance testing and continuous monitoring requirements.

D. Regulatory Flexibility Act (RFA)

    I certify that this action will not have a significant economic 
impact on a substantial number of small entities under the RFA. In 
making this determination, the impact of concern is any significant 
adverse economic impact on small entities. An agency may certify that a 
rule will not have a significant economic impact on a substantial 
number of small entities if the rule relieves regulatory burden, has no 
net burden or otherwise has a positive economic effect on the small 
entities subject to the rule. This action will not impose emission 
measurement requirements beyond those specified in the current 
regulations, nor does it change any emission standard. We have, 
therefore, concluded that this action will have no net regulatory 
burden for all directly regulated small entities.

E. Unfunded Mandates Reform Act (UMRA)

    This action does not contain any unfunded mandate as described in 
UMRA, 2 U.S.C. 1531-1538, and does not significantly or uniquely affect 
small governments. The action imposes no enforceable duty on any state, 
local or tribal governments or the private sector.

F. Executive Order 13132: Federalism

    This action does not have federalism implications. It will not have 
substantial direct effects on the states, on the relationship between 
the national government and the states, or on the distribution of power 
and responsibilities among the various levels of government.

G. Executive Order 13175: Consultation and Coordination With Indian 
Tribal Governments

    This action does not have tribal implications, as specified in 
Executive Order 13175. This action simply corrects and updates existing 
testing regulations. Thus, Executive Order 13175 does not apply to this 
action.

H. Executive Order 13045: Protection of Children From Environmental 
Health Risks and Safety Risks

    The EPA interprets Executive Order 13045 as applying only to those 
regulatory actions that concern environmental health or safety risks 
that the EPA has reason to believe may disproportionately affect 
children, per the definition of ``covered regulatory action'' in 
section 2-202 of the Executive Order. This action is not subject to 
Executive Order 13045 because it does not concern an environmental 
health risk or safety risk.

I. Executive Order 13211: Actions Concerning Regulations That 
Significantly Affect Energy Supply, Distribution or Use

    This action is not subject to Executive Order 13211, because it is 
not a significant regulatory action under Executive Order 12866.

J. National Technology Transfer and Advancement Act (NTTAA) and 1 CFR 
part 51

    This action involves technical standards. The EPA used ASTM D6216-
12 for continuous opacity monitors in Performance Specification 1. The 
ASTM D6216-12 standard covers the procedure for certifying continuous 
opacity monitors and includes design and performance specifications, 
test procedures, and QA requirements to ensure that continuous opacity 
monitors meet minimum design and calibration

[[Page 56720]]

requirements necessary, in part, for accurate opacity monitoring 
measurements in regulatory environmental opacity monitoring 
applications subject to 10 percent or higher opacity standards.
    The ASTM D6216-12 standard was developed and adopted by the 
American Society for Testing and Materials (ASTM). The standard may be 
obtained from http://www.astm.org or from the ASTM at 100 Barr Harbor 
Drive, P.O. Box C700, West Conshohocken, PA 19428-2959.

K. Executive Order 12898: Federal Actions To Address Environmental 
Justice in Minority Populations and Low-Income Populations

    The EPA believes that this action is not subject to Executive Order 
12898 (59 FR 7629, February 16, 1994) because it does not establish an 
environmental health or safety standard. This action is a technical 
correction to previously promulgated regulatory actions and does not 
have an impact on human health or the environment.

L. Congressional Review Act (CRA)

    This action is subject to the CRA, and the EPA will submit a rule 
report to each house of the Congress and to the Comptroller General of 
the United States. This action is not a ``major rule'' as defined by 5 
U.S.C. 804(2).

List of Subjects

40 CFR Part 51

    Environmental protection, Air pollution control, Performance 
specifications, Test methods and procedures.

40 CFR Part 60

    Environmental protection, Air pollution control, Incorporation by 
reference, Performance specifications, Test methods and procedures.

40 CFR Part 63

    Environmental protection, Air pollution control, Incorporation by 
reference, Performance specifications, Test methods and procedures.

    Dated: November 5, 2018.
Andrew R. Wheeler,
Acting Administrator.

    For the reasons stated in the preamble, the Environmental 
Protection Agency amends title 40, chapter I of the Code of Federal 
Regulations as follows:

PART 51--REQUIREMENTS FOR PREPARATION, ADOPTION, AND SUBMITTAL OF 
IMPLEMENTATION PLANS

0
1. The authority citation for part 51 continues to read as follows:

    Authority:  23 U.S.C. 101; 42 U.S.C. 7401-7671q.


0
2. Amend appendix M to part 51 as follows:
0
a. Revise section 12.5, equation 24, in Method 201A.
0
b. Revise the last sentence in section 8.2 in Method 204.
0
c. Revise section 2.1.1 in Method 205.

    The revisions read as follows:

Appendix M to Part 51--Recommended Test Methods for State 
Implementation Plans

* * * * *

Method 201A--Determination of PM10 and PM2.5 Emissions From Stationary 
Sources (Constant Sampling Rate Procedure)

* * * * *
    12.5 * * *
    [GRAPHIC] [TIFF OMITTED] TR14NO18.059
    
* * * * *

Method 204--Criteria for and Verification of a Permanent or Temporary 
Total Enclosure

* * * * *
    8.2 * * *
    The NEAR must be <=0.05.
* * * * *

Method 205--Verification of Gas Dilution Systems for Field Instrument 
Calibrations

* * * * *
    2.1.1 The gas dilution system shall be recalibrated once per 
calendar year using NIST-traceable flow standards with an 
uncertainty <=0.25 percent. You shall report the results of the 
calibration by the person or manufacturer who carried out the 
calibration whenever the dilution system is used, listing the date 
of the most recent calibration, the due date for the next 
calibration, calibration point, reference flow device (ID, S/N), and 
acceptance criteria. Follow the manufacturer's instructions for the 
operation and use of the gas dilution system. A copy of the 
manufacturer's instructions for the operation of the instrument, as 
well as the most recent calibration documentation, shall be made 
available for inspection at the test site.
* * * * *

PART 60--STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES

0
3. The authority citation for part 60 continues to read as follows:

    Authority:  42 U.S.C. 7401 et seq.


0
4. In Sec.  60.17, revise paragraph (h)(177) to read as follows:


Sec.  60.17  Incorporations by reference.

* * * * *
    (h) * * *
    (177) ASTM D6216-12, Standard Practice for Opacity Monitor 
Manufacturers to Certify Conformance with Design and Performance 
Specifications, approved October 1, 2012; IBR approved for appendix B 
to part 60.
* * * * *

0
5. In Appendix A-1 to part 60, revise ``(CO2)a'' 
in section 12.1 in Method 2B to read as follows:

Appendix A-1 to Part 60--Test Methods 1 through 2F

* * * * *

Method 2B--Determination of Exhaust Gas Volume Flow Rate From Gasoline 
Vapor Incinerators

* * * * *
    12.1 * * *
    (CO2)a = Ambient carbon dioxide 
concentration, ppm (if not measured during the test period, may be 
assumed to equal the global monthly mean CO2 
concentration posted at http://www.esrl.noaa.gov/gmd/ccgg/trends/global.html#global_data).
* * * * *

0
6. In appendix A-3 to part 60:
0
a. Revise sections 6.1.1.9 and 11.2.1 in Method 5.
0
b. Revise section 11.0 in Method 5B.
0
c. Add section 17.0 in Method 5B.
    The revisions and addition read as follows:

[[Page 56721]]

Appendix A-3 to Part 60--Test Methods 4 through 5I

* * * * *

Method 5--Determination of Particulate Matter Emissions From Stationary 
Sources

* * * * *
    6.1.1.9 Metering System. Vacuum gauge, leak-free pump, 
calibrated temperature sensors, dry gas meter (DGM) capable of 
measuring volume to within 2 percent, and related equipment, as 
shown in Figure 5-1. Other metering systems capable of maintaining 
sampling rates within 10 percent of isokinetic and of determining 
sample volumes to within 2 percent may be used, subject to the 
approval of the Administrator. When the metering system is used in 
conjunction with a pitot tube, the system shall allow periodic 
checks of isokinetic rates. The average DGM temperature for use in 
the calculations of section 12.0 may be obtained by averaging the 
two temperature sensors located at the inlet and outlet of the DGM 
as shown in Figure 5-3 or alternatively from a single temperature 
sensor located at the immediate outlet of the DGM or the plenum of 
the DGM.
* * * * *
    11.2.1 Container No. 1. Leave the contents in the shipping 
container or transfer the filter and any loose PM from the sample 
container to a tared weighing container. Desiccate for 24 hours in a 
desiccator containing anhydrous calcium sulfate. Weigh to a constant 
weight, and report the results to the nearest 0.1 mg. For the 
purposes of this section, the term ``constant weight'' means a 
difference of no more than 0.5 mg or 1 percent of total weight less 
tare weight, whichever is greater, between two consecutive 
weighings, with no less than 6 hours of desiccation time between 
weighings. Alternatively, the sample may be oven dried at 104 [deg]C 
(220 [deg]F) for 2 to 3 hours, cooled in the desiccator, and weighed 
to a constant weight, unless otherwise specified by the 
Administrator. The sample may be oven dried at 104 [deg]C (220 
[deg]F) for 2 to 3 hours. Once the sample has cooled, weigh the 
sample, and use this weight as a final weight.
* * * * *

Method 5B-Determination of Nonsulfuric Acid Particulate Matter 
Emissions From Stationary Sources

* * * * *

11.0 Analytical Procedure

    11.1 Record and report the data required on a sheet such as the 
one shown in Figure 5B-1.
    11.2 Handle each sample container as follows:
    11.2.1 Container No. 1. Leave the contents in the shipping 
container or transfer the filter and any loose PM from the sample 
container to a tared non-reactive oven-proof container. Oven dry the 
filter sample at a temperature of 160 5 [deg]C (320 
9 [deg]F) for 6 hours. Cool in a desiccator for 2 hours, 
and weigh to constant weight. Report the results to the nearest 0.1 
mg. For the purposes of this section, the term ``constant weight'' 
means a difference of no more than 0.5 mg or 1 percent of total 
weight less tare weight, whichever is greater, between two 
consecutive weighings, with no less than 6 hours of desiccation time 
between weighings.
    11.2.2 Container No. 2. Note the level of liquid in the 
container, and confirm on the analysis sheet whether leakage 
occurred during transport. If a noticeable amount of leakage has 
occurred, either void the sample or use methods, subject to the 
approval of the Administrator, to correct the final results. Measure 
the liquid in this container either volumetrically to 1 
ml or gravimetrically to 0.5 g. Transfer the contents to 
a tared 250 ml beaker, and evaporate to dryness at ambient 
temperature and pressure. Then oven dry the probe sample at a 
temperature of 160 5 [deg]C (320 9 [deg]F) 
for 6 hours. Cool in a desiccator for 2 hours, and weigh to constant 
weight. Report the results to the nearest 0.1 mg.
    11.2.3 Container No. 3. Weigh the spent silica gel (or silica 
gel plus impinger) to the nearest 0.5 g using a balance. This step 
may be conducted in the field.
    11.2.4 Acetone Blank Container. Measure the acetone in this 
container either volumetrically or gravimetrically. Transfer the 
acetone to a tared 250 ml beaker, and evaporate to dryness at 
ambient temperature and pressure. Desiccate for 24 hours, and weigh 
to a constant weight. Report the results to the nearest 0.1 mg.
    Note: The contents of Container No. 2 as well as the acetone 
blank container may be evaporated at temperatures higher than 
ambient. If evaporation is done at an elevated temperature, the 
temperature must be below the boiling point of the solvent; also, to 
prevent ``bumping,'' the evaporation process must be closely 
supervised, and the contents of the beaker must be swirled 
occasionally to maintain an even temperature. Use extreme care, as 
acetone is highly flammable and has a low flash point.
* * * * *

17.0 Tables, Diagrams, Flowcharts, and Validation Data

------------------------------------------------------------------------
                                Weight of particulate collected, mg
    Container number     -----------------------------------------------
                           Final weight     Tare weight     Weight gain
------------------------------------------------------------------------
1.
2.
                         -----------------------------------------------
    Total:
                         -----------------------------------------------
Less acetone blank
Weight of particulate
 matter
------------------------------------------------------------------------


 
                               Volume of liquid water collected
                     ---------------------------------------------------
                        Impinger volume,         Silica gel weight,
------------------------------------------------------------------------
                               ml                         g
                     ---------------------------------------------------
Final
Initial
Liquid collected
    Total volume                            g* ml
     collected
* Convert weight of water to volume by dividing total weight increase by
  density of water (1 g/ml).

Figure 5B-1. Analytical Data Sheet

* * * * *

0
7. In appendix A-4 to part 60:
0
a. Revise sections 10.1.2 and 11.3 in Method 7.
0
b. Redesignate sections 6.1.1.1 through 6.1.1.4 as sections 6.1.1.2 
through 6.1.1.5 in Method 8.
0
c. Add a new section 6.1.1.1 in Method 8.
0
d. Revise Figure 8-1 in Method 8.
    The revisions and addition read as follows:

Appendix A-4 to Part 60--Test Methods 6 Through 10B

* * * * *

[[Page 56722]]

Method 7--Determination of Nitrogen Oxide Emissions From Stationary 
Sources

* * * * *
    10.1.2 Determination of Spectrophotometer Calibration Factor 
Kc. Add 0 ml, 2.0 ml, 4.0 ml, 6.0 ml, and 8.0 ml of the 
KNO3 working standard solution (1 ml = 100 [micro]g 
NO2) to a series of five 50-ml volumetric flasks. To each 
flask, add 25 ml of absorbing solution and 10 ml water. Add 1 N NaOH 
to each flask until the pH is between 9 and 12 (about 25 to 35 
drops). Dilute to the mark with water. Mix thoroughly, and pipette a 
25-ml aliquot of each solution into a separate porcelain evaporating 
dish. Beginning with the evaporation step, follow the analysis 
procedure of section 11.2 until the solution has been transferred to 
the 100-ml volumetric flask and diluted to the mark. Measure the 
absorbance of each solution at the optimum wavelength as determined 
in section 10.1.1. This calibration procedure must be repeated on 
each day that samples are analyzed. Calculate the spectrophotometer 
calibration factor as shown in section 12.2.
* * * * *
    11.3 Sample Analysis. Mix the contents of the flask thoroughly, 
and measure the absorbance at the optimum wavelength used for the 
standards (section 10.1.1), using the blank solution as a zero 
reference. Dilute the sample and the blank with equal volumes of 
water if the absorbance exceeds A4, the absorbance of the 
400-[micro]g NO2 standard (see section 10.1.3).
* * * * *

Method 8--Determination of Sulfuric Acid and Sulfur Dioxide Emissions 
From Stationary Sources

* * * * *
    6.1.1.1 Probe Nozzle. Borosilicate or quartz glass with a sharp, 
tapered leading edge and coupled to the probe liner using a 
polytetrafluoroethylene (PTFE) or glass-lined union (e.g., fused 
silica, Slico, or equivalent). When the stack temperature exceeds 
210 [deg]C (410 [deg]F), a leak-free ground glass fitting or other 
leak free, non-contaminating fitting must be used to couple the 
nozzle to the probe liner. It is also acceptable to use a one-piece 
glass nozzle/liner assembly. The angle of the taper shall be 
<=30[deg], and the taper shall be on the outside to preserve a 
constant internal diameter. The probe nozzle shall be of the button-
hook or elbow design, unless otherwise specified by the 
Administrator. Other materials of construction may be used, subject 
to the approval of the Administrator. A range of nozzle sizes 
suitable for isokinetic sampling should be available. Typical nozzle 
sizes range from 0.32 to 1.27 cm (\1/8\ to \1/2\ in) inside diameter 
(ID) in increments of 0.16 cm (\1/16\ in). Larger nozzles sizes are 
also available if higher volume sampling trains are used.
* * * * *
    17.0 * * *
    [GRAPHIC] [TIFF OMITTED] TR14NO18.060
    

[[Page 56723]]


* * * * *

Appendix A-6 to Part 60--[Amended]

0
8. In Appendix A-6 to part 60, redesignate paragraph (c) as paragraph 
(b) in section 13.1 in Method 18.

0
9. In appendix A-7 to part 60:
0
a. Revise sections 11.2.1 and 11.2.2 in Method 22.
0
b. Add section 11.2.3 in Method 22.
    The revisions and addition read as follows:

Appendix A-7 to Part 60--Test Methods 19 Through 25E

* * * * *

Method 22--Visual Determination of Fugitive Emissions From Material 
Sources and Smoke Emissions From Flares

* * * * *
    11.2.1 Outdoor Location. Record the following information on the 
field data sheet (Figure 22-1): Company name, industry, process 
unit, observer's name, observer's affiliation, and date. Record also 
the estimated wind speed, wind direction, and sky condition. Sketch 
the process unit being observed, and note the observer location 
relative to the source and the sun. Indicate the potential and 
actual emission points on the sketch. Alternatively, digital 
photography as described in section 11.2.3 may be used for a subset 
of the recordkeeping requirements of this section.
    11.2.2 Indoor Location. Record the following information on the 
field data sheet (Figure 22-2): Company name, industry, process 
unit, observer's name, observer's affiliation, and date. Record as 
appropriate the type, location, and intensity of lighting on the 
data sheet. Sketch the process unit being observed, and note the 
observer location relative to the source. Indicate the potential and 
actual fugitive emission points on the sketch. Alternatively, 
digital photography as described in section 11.2.3 may be used for a 
subset of the recordkeeping requirements of this section.
    11.2.3 Digital Photographic Records. Digital photographs, 
annotated or unaltered, may be used to record and report sky 
conditions, observer's location relative to the source, observer's 
location relative to the sun, process unit being observed, potential 
emission points and actual emission points for the requirements in 
sections 11.2.1 and 11.2.2. The image must have the proper lighting, 
field of view and depth of field to properly distinguish the sky 
condition (if applicable), process unit, potential emission point 
and actual emission point. At least one digital photograph must be 
from the point of the view of the observer. The photograph(s) 
representing the environmental conditions including the sky 
conditions and the position of the sun relative to the observer and 
the emission point must be taken within a reasonable time of the 
observation (i.e., 15 minutes). When observations are taken from 
exactly the same observation point on a routine basis (i.e., daily) 
and as long as there are no modifications to the units depicted, 
only a single photograph each is necessary to document the 
observer's location relative to the emissions source, the process 
unit being observed, and the location of potential and actual 
emission points. Any photographs altered or annotated must be 
retained in an unaltered format for recordkeeping purposes.
* * * * *

0
10. In appendix A-8 to part 60:
0
a. Revise section 6.2.2 in Method 26.
0
b. Revise section 6.2.1 in Method 26A.
0
c. Add section 6.2.4 in Method 26A.
0
d. Revise equation 8 in section 13.5.1 in Test Method 28WHH.
    The revisions and additions read as follows:

Appendix A-8 to Part 60--Test Methods 26 Through 30B

* * * * *

Method 26--Determination of Hydrogen Halide and Halogen Emissions From 
Stationary Sources Non-Isokinetic Method

* * * * *
    6.2.2 Storage Containers. 100- or 250-ml, high-density 
polyethylene or glass sample storage containers with Teflon screw 
cap liners to store impinger samples.
* * * * *

Method 26A--Determination of Hydrogen Halide and Halogen Emissions From 
Stationary Sources Isokinetic Method

* * * * *
    6.2.1 Probe-Liner and Probe-Nozzle Brushes, Wash Bottles, Petri 
Dishes, Graduated Cylinder and/or Balance, and Rubber Policeman. 
Same as Method 5, sections 6.2.1, 6.2.2, 6.2.4, 6.2.5, and 6.2.7.
* * * * *
    6.2.4 Sample Storage Containers. High-density polyethylene or 
glass sample storage containers with Teflon screw cap liners to 
store impinger samples.
* * * * *

Test Method 28WHH for Measurement of Particulate Emissions and Heating 
Efficiency of Wood-Fired Hydronic Heating Appliances

* * * * *
    13.5.1 * * *
    [GRAPHIC] [TIFF OMITTED] TR14NO18.061
    
* * * * *

0
11. In appendix B to part 60:
0
a. Add the following entries to the list of Performance Specifications 
in numeric order:
0
i. Performance Specification 12B--Specifications and Test Procedures 
for Monitoring Total Vapor Phase Mercury Emissions From Stationary 
Sources Using A Sorbent Trap Monitoring System
0
ii. Performance Specification 17 [Reserved]
0
iii. Performance Specification 18--Performance Specifications and Test 
Procedures for Gaseous Hydrogen Chloride (HCl) Continuous Emission 
Monitoring Systems at Stationary Sources
0
iv. PS-18--Appendix A Standard Addition Procedures
0
b. In Performance Specification 1, remove ``D 6216-98'' wherever it 
appears and add in its place ``D6216-12'', and revise section 2.1, the 
introductory text of section 13.0, sections 13.1 and 13.2, and 
paragraph 8. of section 16.0.
0
c. In Performance Specification 2, revise section 13.2.
0
d. In Performance Specification 3, revise sections 12.0 and 13.2.
0
e. In Performance Specification 11, revise section 13.1.
0
f. In Performance Specification 15, add reserved section 13.0.
0
g. In Performance Specification 18, revise section 11.8.7 and table 1 
in section 17.0, and add reserved section 12.0 to PS-18.
    The revisions and additions read as follows:

Appendix B to Part 60--Performance Specifications

* * * * *

Performance Specification 1--Specifications and Test Procedures for 
Continuous Opacity Monitoring Systems in Stationary Sources

* * * * *
    2.1 ASTM D6216-12 (incorporated by reference, see Sec.  60.17) 
is the reference for design specifications, manufacturer's 
performance specifications, and test procedures. The opacity monitor 
manufacturer must periodically select and test an opacity monitor, 
that is representative of a group of monitors produced during a 
specified period or lot, for conformance with the design 
specifications in ASTM D6216-12. The opacity monitor manufacturer 
must test each opacity monitor for conformance with the 
manufacturer's performance specifications in ASTM D6216-12. Note: If 
the initial certification of the opacity monitor occurred before 
November 14, 2018 using D6216-98, D6216-03, or D6216-07, it is not 
necessary to recertify using D6216-12.
* * * * *
    13.0 What Specifications Does a COMS Have to Meet for 
Certification?

[[Page 56724]]

    A COMS must meet the following design, manufacturer's 
performance, and field audit performance specifications:

    Note: If the initial certification of the opacity monitor 
occurred before November 14, 2018 using D6216-98, D6216-03, or 
D6216-07, it is not necessary to recertify using D6216-12.A. COMS 
must meet the following design, manufacturer's performance, and 
field audit performance specifications.

    13.1 Design Specifications. The opacity monitoring equipment 
must comply with the design specifications of ASTM D6216-12.
    13.2 Manufacturer's Performance Specifications. The opacity 
monitor must comply with the manufacturer's performance 
specifications of ASTM D6216-12.
* * * * *
    16.0 * * *
    8. ASTM D6216-12: Standard Practice for Opacity Monitor 
Manufacturers to Certify Conformance with Design and Performance 
Specifications. ASTM. October 2012.
* * * * *

Performance Specification 2--Specifications and Test Procedures for 
SO2 and NOX Continuous Emission Monitoring 
Systems in Stationary Sources

* * * * *
    13.2 Relative Accuracy Performance Specification.

------------------------------------------------------------------------
                                    Calculate . . .     RA criteria (%)
------------------------------------------------------------------------
If average emissions during the   Use Eq. 2-6, with               <=20.0
 RATA are >=50% of emission        RM in the
 standard.                         denominator.
If average emissions during the   Use Eq. 2-6,                    <=10.0
 RATA are <50% of emission         emission standard
 standard.                         in the denominator.
For SO2 emission standards <=130  Use Eq. 2-6,                    <=15.0
 but >=86 ng/J (0.30 and 0.20 lb/  emission standard
 million Btu).                     in the denominator.
For SO2 emission standards <86    Use Eq. 2-6,                    <=20.0
 ng/J (0.20 lb/million Btu).       emission standard
                                   in the denominator.
------------------------------------------------------------------------

* * * * *

Performance Specification 3--Specifications and Test Procedures for 
O2 and CO2 Continuous Emission Monitoring Systems 
in Stationary Sources

* * * * *
    12.0 Calculations and Data Analysis
    Calculate the RA using equations 3-1 and 3-2. Summarize the 
results on a data sheet similar to that shown in Figure 2.2 of PS2.
[GRAPHIC] [TIFF OMITTED] TR14NO18.062

[GRAPHIC] [TIFF OMITTED] TR14NO18.073

* * * * *
    13.2 CEMS Relative Accuracy Performance Specification. The RA of 
the CEMS must be no greater than 20.0 percent of the mean value of 
the reference method (RM) data when calculated using equation 3-1. 
The results are also acceptable if the result of Equation 3-2 is 
less than or equal to 1.0 percent O2 (or CO2).
* * * * *

Performance Specification 11--Specifications and Test Procedures for 
Particulate Matter Continuous Emission Monitoring Systems at Stationary 
Sources

* * * * *
    13.1 What is the 7-day drift check performance specification? 
Your daily PM CEMS internal drift checks must demonstrate that the 
daily drift of your PM CEMS does not deviate from the value of the 
reference light, optical filter, Beta attenuation signal, or other 
technology-suitable reference standard by more than 2 percent of the 
response range. If your CEMS includes diluent and/or auxiliary 
monitors (for temperature, pressure, and/or moisture) that are 
employed as a necessary part of this performance specification, you 
must determine the calibration drift separately for each ancillary 
monitor in terms of its respective output (see the appropriate 
performance specification for the diluent CEMS specification). None 
of the calibration drifts may exceed their individual specification.
* * * * *

[[Page 56725]]

Performance Specification 15--Performance Specification for Extractive 
FTIR Continuous Emissions Monitor Systems in Stationary Sources

* * * * *
    13.0 Method Performance [Reserved]
* * * * *

Performance Specification 18--Performance Specifications and Test 
Procedures for Gaseous Hydrogen Chloride (HCl) Continuous Emission 
Monitoring Systems at Stationary Sources

* * * * *
    11.8.7 The zero-level and mid-level CD for each day must be less 
than 5.0 percent of the span value as specified in section 13.2 of 
this PS. You must meet this criterion for 7 consecutive operating 
days.
* * * * *
    17.0 * * *

              Table 1--Interference Test Gas Concentrations
------------------------------------------------------------------------
                                              Approximate concentration
       Potential interferent gas \1\                (balance N2)
------------------------------------------------------------------------
CO2.......................................  15%  1% CO2.\2\
CO........................................  100  20 ppm.
CH2O......................................  20  5 ppm.
CH4.......................................  100  20 ppm.
NH3.......................................  10  5 ppm
                                             (extractive CEMS only).
NO........................................  250  50 ppm.
SO2.......................................  200  20 ppm.
O2........................................  3%  1% O2.\2\
H2O.......................................  10%  1% H2O.\2\
N2........................................  Balance.\2\
------------------------------------------------------------------------
\1\ Any of these specific gases can be tested at a lower level if the
  manufacturer has provided reliable means for limiting or scrubbing
  that gas to a specified level in CEMS field installations.
\2\ Gases for short path IP cell interference tests cannot be added
  above 100 percent stack equivalent concentration. Add these gases at
  the indicated percentages to make up the remaining cell volume.

* * * * *
    PS-18 Appendix A Standard Addition Procedures
* * * * *
    12.0 [Reserved]
* * * * *

0
12. Revise sections 5.1.2(1) and (3) in Procedure 1 of appendix F to 
part 60 to read as follows:

Appendix F to Part 60--Quality Assurance Procedures

Procedure 1--Quality Assurance Requirements for Gas Continuous Emission 
Monitoring Systems Used For Compliance Determination

* * * * *
    5.1.2 * * *
    (1) Challenge the CEMS (both pollutant and diluent portions of 
the CEMS, if applicable) with an audit gas of known concentration at 
two points within the following ranges:

----------------------------------------------------------------------------------------------------------------
                                                                    Audit range
                                 -------------------------------------------------------------------------------
           Audit point                                                   Diluent monitors for--
                                   Pollutant monitors ----------------------------------------------------------
                                                               CO2                           O2
----------------------------------------------------------------------------------------------------------------
1...............................  20 to 30% of span    5 to 8% by volume..  4 to 6% by volume.
                                   value.
2...............................  50 to 60% of span    10 to 14% by volume  8 to 12% by volume.
                                   value.
----------------------------------------------------------------------------------------------------------------

    Introduce each of the audit gases, three times each for a total 
of six challenges. Introduce the gases in such a manner that the 
entire CEMS is challenged. Do not introduce the same gas 
concentration twice in succession.
    Use of separate audit gas cylinder for audit points 1 and 2. Do 
not dilute gas from audit cylinder when challenging the CEMS.
    The monitor should be challenged at each audit point for a 
sufficient period of time to assure adsorption-desorption of the 
CEMS sample transport surfaces has stabilized.
* * * * *
    (3) Use Certified Reference Materials (CRM's) (See Citation 1) 
audit gases that have been certified by comparison to National 
Institute of Standards and Technology (NIST) Standard Reference 
Materials (SRM's) or EPA Protocol Gases following the most recent 
edition of the EPA Traceability Protocol for Assay and Certification 
of Gaseous Calibration Standards (See Citation 2). Procedures for 
preparation of CRM's are described in Citation 1. Procedures for 
preparation of EPA Protocol Gases are described in Citation 2. In 
the case that a suitable audit gas level is not commercially 
available, Method 205 (See Citation 3) may be used to dilute CRM's 
or EPA Protocol Gases to the needed level. The difference between 
the actual concentration of the audit gas and the concentration 
indicated by the monitor is used to assess the accuracy of the CEMS.
* * * * *

PART 63--NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS 
FOR SOURCE CATEGORIES

0
13. The authority citation for part 63 continues to read as follows:

    Authority: 42 U.S.C. 7401 et seq.


0
14. In Sec.  63.7, revise paragraphs (g)(2) introductory text and 
(g)(2)(v) to read as follows:


Sec.  63.7   Performance testing requirements.

* * * * *
    (g) * * *
    (2) Contents of a performance test, CMS performance evaluation, or 
CMS quality assurance test report (electronic or paper submitted copy). 
Unless otherwise specified in a relevant standard, test method, CMS 
performance specification, or quality assurance requirement for a CMS, 
or as otherwise approved by the Administrator in writing, the report 
shall include the elements identified in paragraphs (g)(2)(i) through 
(vi) of this section.
* * * * *
    (v) Where a test method, CEMS, PEMS, or COMS performance 
specification, or on-going quality assurance requirement for a CEMS, 
PEMS, or COMS requires you record or report, the following shall be 
included in your report: Record of preparation of standards, record of 
calibrations, raw data sheets for field sampling, raw data sheets for 
field and laboratory analyses, chain-of-custody documentation, and 
example calculations for reported results.
* * * * *

0
15. In Sec.  63.8, revise paragraph (e)(5)(i) to read as follows:


Sec.  63.8  Monitoring requirements.

* * * * *
    (e) * * *
    (5) * * * (i) The owner or operator shall furnish the Administrator 
a copy of a written report of the results of the performance evaluation 
containing the information specified in Sec.  63.7(g)(2)(i) through 
(vi) simultaneously with the results of the performance test required 
under Sec.  63.7 or within 60 days of completion of the performance 
evaluation, unless otherwise specified in a relevant standard.
* * * * *

0
16. Revise Table 6 to Subpart DDDDD of part 63 to read as follows:

Table 6 to Subpart DDDDD of Part 63--Fuel Analysis Requirements

    As stated in Sec.  63.7521, you must comply with the following 
requirements

[[Page 56726]]

for fuel analysis testing for existing, new or reconstructed affected 
sources. However, equivalent methods (as defined in Sec.  63.7575) may 
be used in lieu of the prescribed methods at the discretion of the 
source owner or operator:

------------------------------------------------------------------------
To conduct a fuel analysis for
 the following pollutant . . .    You must . . .        Using . . .
 
------------------------------------------------------------------------
1. Mercury....................  a. Collect fuel    Procedure in Sec.
                                 samples.           63.7521(c) or ASTM
                                                    D5192\a\, or ASTM
                                                    D7430\a\, or ASTM
                                                    D6883\a\, or ASTM
                                                    D2234/D2234M\a\ (for
                                                    coal) or EPA 1631 or
                                                    EPA 1631E or ASTM
                                                    D6323\a\ (for
                                                    solid), or EPA 821-R-
                                                    01-013 (for liquid
                                                    or solid), or ASTM
                                                    D4177\a\ (for
                                                    liquid), or ASTM
                                                    D4057\a\ (for
                                                    liquid), or
                                                    equivalent.
                                b. Composite fuel  Procedure in Sec.
                                 samples.           63.7521(d) or
                                                    equivalent.
                                c. Prepare         EPA SW-846-3050B\a\
                                 composited fuel    (for solid samples),
                                 samples.           ASTM D2013/D2013M\a\
                                                    (for coal), ASTM
                                                    D5198\a\ (for
                                                    biomass), or EPA
                                                    3050\a\ (for solid
                                                    fuel), or EPA 821-R-
                                                    01-013\a\ (for
                                                    liquid or solid), or
                                                    equivalent.
                                d. Determine heat  ASTM D5865\a\ (for
                                 content of the     coal) or ASTM
                                 fuel type.         E711\a\ (for
                                                    biomass), or ASTM
                                                    D5864\a\ for liquids
                                                    and other solids, or
                                                    ASTM D240\a\ or
                                                    equivalent.
                                e. Determine       ASTM D3173\a\, ASTM
                                 moisture content   E871\a\, or ASTM
                                 of the fuel type.  D5864\a\, or ASTM
                                                    D240\a\, or ASTM
                                                    D95\a\ (for liquid
                                                    fuels), or ASTM
                                                    D4006\a\ (for liquid
                                                    fuels), or
                                                    equivalent.
                                f. Measure         ASTM D6722\a\ (for
                                 mercury            coal), EPA SW-846-
                                 concentration in   7471B\a\ or EPA 1631
                                 fuel sample.       or EPA 1631E\a\ (for
                                                    solid samples), or
                                                    EPA SW-846-7470A\a\
                                                    or EPA SW-846-
                                                    7471B\a\ (for liquid
                                                    samples), or EPA 821-
                                                    R-01-013\a\ (for
                                                    liquid or solid), or
                                                    equivalent.
                                g. Convert         For fuel mixtures use
                                 concentration      Equation 8 in Sec.
                                 into units of      63.7530.
                                 pounds of
                                 mercury per
                                 MMBtu of heat
                                 content.
2. HCl........................  a. Collect fuel    Procedure in Sec.
                                 samples.           63.7521(c) or ASTM
                                                    D5192\a\, or ASTM
                                                    D7430\a\, or ASTM
                                                    D6883\a\, or ASTM
                                                    D2234/D2234M\a\ (for
                                                    coal) or ASTM
                                                    D6323\a\ (for coal
                                                    or biomass), ASTM
                                                    D4177\a\ (for liquid
                                                    fuels) or ASTM
                                                    D4057\a\ (for liquid
                                                    fuels), or
                                                    equivalent.
                                b. Composite fuel  Procedure in Sec.
                                 samples.           63.7521(d) or
                                                    equivalent.
                                c. Prepare         EPA SW-846-3050B\a\
                                 composited fuel    (for solid samples),
                                 samples.           ASTM D2013/D2013M\a\
                                                    (for coal), or ASTM
                                                    D5198\a\ (for
                                                    biomass), or EPA
                                                    3050\a\ or
                                                    equivalent.
                                d. Determine heat  ASTM D5865\a\ (for
                                 content of the     coal) or ASTM
                                 fuel type.         E711\a\ (for
                                                    biomass), ASTM
                                                    D5864\a\, ASTM
                                                    D240\a\ or
                                                    equivalent.
                                e. Determine       ASTM D3173\a\ or ASTM
                                 moisture content   E871\a\, or
                                 of the fuel type.  D5864\a\, or ASTM
                                                    D240\a\, or ASTM
                                                    D95\a\ (for liquid
                                                    fuels), or ASTM
                                                    D4006\a\ (for liquid
                                                    fuels), or
                                                    equivalent.
                                f. Measure         EPA SW-846-9250\a\,
                                 chlorine           ASTM D6721\a\, ASTM
                                 concentration in   D4208\a\ (for coal),
                                 fuel sample.       or EPA SW-846-
                                                    5050\a\ or ASTM
                                                    E776\a\ (for solid
                                                    fuel), or EPA SW-846-
                                                    9056\a\ or SW-846-
                                                    9076\a\ (for solids
                                                    or liquids) or
                                                    equivalent.
                                g. Convert         For fuel mixtures use
                                 concentrations     Equation 7 in Sec.
                                 into units of      63.7530 and convert
                                 pounds of HCl      from chlorine to HCl
                                 per MMBtu of       by multiplying by
                                 heat content.      1.028.
3. Mercury Fuel Specification   a. Measure         Method 30B (M30B) at
 for other gas 1 fuels.          mercury            40 CFR part 60,
                                 concentration in   appendix A-8 of this
                                 the fuel sample    chapter or ASTM
                                 and convert to     D5954\a\, ASTM
                                 units of           D6350\a\, ISO 6978-
                                 micrograms per     1:2003(E)\a\, or ISO
                                 cubic meter, or.   6978-2:2003(E)\a\,
                                                    or EPA-1631\a\ or
                                                    equivalent.
                                b. Measure         Method 29, 30A, or
                                 mercury            30B (M29, M30A, or
                                 concentration in   M30B) at 40 CFR part
                                 the exhaust gas    60, appendix A-8 of
                                 when firing only   this chapter or
                                 the other gas 1    Method 101A or
                                 fuel is fired in   Method 102 at 40 CFR
                                 the boiler or      part 61, appendix B
                                 process heater.    of this chapter, or
                                                    ASTM Method D6784\a\
                                                    or equivalent.
4. TSM........................  a. Collect fuel    Procedure in Sec.
                                 samples.           63.7521(c) or ASTM
                                                    D5192\a\, or ASTM
                                                    D7430\a\, or ASTM
                                                    D6883\a\, or ASTM
                                                    D2234/D2234M\a\ (for
                                                    coal) or ASTM
                                                    D6323\a\ (for coal
                                                    or biomass), or ASTM
                                                    D4177\a\, (for
                                                    liquid fuels), or
                                                    ASTM D4057\a\ (for
                                                    liquid fuels), or
                                                    equivalent.
                                b. Composite fuel  Procedure in Sec.
                                 samples.           63.7521(d) or
                                                    equivalent.
                                c. Prepare         EPA SW-846-3050B\a\
                                 composited fuel    (for solid samples),
                                 samples.           ASTM D2013/D2013M\a\
                                                    (for coal), ASTM
                                                    D5198\a\ or TAPPI
                                                    T266\a\ (for
                                                    biomass), or EPA
                                                    3050\a\ or
                                                    equivalent.
                                d. Determine heat  ASTM D5865\a\ (for
                                 content of the     coal) or ASTM
                                 fuel type.         E711\a\ (for
                                                    biomass), or ASTM
                                                    D5864\a\ for liquids
                                                    and other solids, or
                                                    ASTM D240\a\ or
                                                    equivalent.
                                e. Determine       ASTM D3173\a\ or ASTM
                                 moisture content   E871\a\, or
                                 of the fuel type.  D5864\a\, or ASTM
                                                    D240\a\, or ASTM
                                                    D95\a\ (for liquid
                                                    fuels), or ASTM
                                                    D4006\a\ (for liquid
                                                    fuels), or ASTM
                                                    D4177\a\ (for liquid
                                                    fuels) or ASTM
                                                    D4057\a\ (for liquid
                                                    fuels), or
                                                    equivalent.
                                f. Measure TSM     ASTM D3683\a\, or
                                 concentration in   ASTM D4606\a\, or
                                 fuel sample.       ASTM D6357\a\ or EPA
                                                    200.8\a\ or EPA SW-
                                                    846-6020\a\, or EPA
                                                    SW-846-6020A\a\, or
                                                    EPA SW-846-6010C\a\,
                                                    EPA 7060\a\ or EPA
                                                    7060A\a\ (for
                                                    arsenic only), or
                                                    EPA SW-846-7740\a\
                                                    (for selenium only).

[[Page 56727]]

 
                                g. Convert         For fuel mixtures use
                                 concentrations     Equation 9 in Sec.
                                 into units of      63.7530.
                                 pounds of TSM
                                 per MMBtu of
                                 heat content.
------------------------------------------------------------------------
\a\ Incorporated by reference, see Sec.   63.14.

* * * * *

0
17. Revise Table 5 to Subpart UUUUU of part 63 to read as follows:

Table 5 to Subpart UUUUU of Part 63--Performance Testing Requirements

    As stated in Sec.  63.10007, you must comply with the following 
requirements for performance testing for existing, new or reconstructed 
affected sources: \1\
---------------------------------------------------------------------------

    \1\ Regarding emissions data collected during periods of startup 
or shutdown, see Sec. Sec.  63.10020(b) and (c) and 63.10021(h).

 
----------------------------------------------------------------------------------------------------------------
                                                              You must perform the
                                                            following activities, as
 To conduct a performance test for       Using . . .        applicable to your input-        Using . . .\2\
   the following pollutant . . .                            or output-based emission
                                                                   limit . . .
----------------------------------------------------------------------------------------------------------------
1. Filterable Particulate matter    Emissions Testing....  a. Select sampling ports    Method 1 at appendix A-1
 (PM).                                                      location and the number     to part 60 of this
                                                            of traverse points.         chapter.
                                                           b. Determine velocity and   Method 2, 2A, 2C, 2F, 2G
                                                            volumetric flow-rate of     or 2H at appendix A-1 or
                                                            the stack gas.              A-2 to part 60 of this
                                                                                        chapter.
                                                           c. Determine oxygen and     Method 3A or 3B at
                                                            carbon dioxide              appendix A-2 to part 60
                                                            concentrations of the       of this chapter, or ANSI/
                                                            stack gas.                  ASME PTC 19.10-1981.\3\
                                                           d. Measure the moisture     Method 4 at appendix A-3
                                                            content of the stack gas.   to part 60 of this
                                                                                        chapter.
                                                           e. Measure the filterable   Methods 5 and 5I at
                                                            PM concentration.           appendix A-3 to part 60
                                                                                        of this chapter.
                                                                                       For positive pressure
                                                                                        fabric filters, Method
                                                                                        5D at appendix A-3 to
                                                                                        part 60 of this chapter
                                                                                        for filterable PM
                                                                                        emissions.
                                                                                       Note that the Method 5 or
                                                                                        5I front half
                                                                                        temperature shall be
                                                                                        160[deg] 14
                                                                                        [deg]C (320[deg] 25 [deg]F).
                                                           f. Convert emissions        Method 19 F-factor
                                                            concentration to lb/MMBtu   methodology at appendix
                                                            or lb/MWh emissions rates.  A-7 to part 60 of this
                                                                                        chapter, or calculate
                                                                                        using mass emissions
                                                                                        rate and gross output
                                                                                        data (see Sec.
                                                                                        63.10007(e)).
                                    OR                     OR
                                    PM CEMS..............  a. Install, certify,        Performance Specification
                                                            operate, and maintain the   11 at appendix B to part
                                                            PM CEMS.                    60 of this chapter and
                                                                                        Procedure 2 at appendix
                                                                                        F to part 60 of this
                                                                                        chapter.
                                                           b. Install, certify,        Part 75 of this chapter
                                                            operate, and maintain the   and Sec.   63.10010(a),
                                                            diluent gas, flow rate,     (b), (c), and (d).
                                                            and/or moisture
                                                            monitoring systems.
                                                           c. Convert hourly           Method 19 F-factor
                                                            emissions concentrations    methodology at appendix
                                                            to 30 boiler operating      A-7 to part 60 of this
                                                            day rolling average lb/     chapter, or calculate
                                                            MMBtu or lb/MWh emissions   using mass emissions
                                                            rates.                      rate and gross output
                                                                                        data (see Sec.
                                                                                        63.10007(e)).
2. Total or individual non-Hg HAP   Emissions Testing....  a. Select sampling ports    Method 1 at appendix A-1
 metals.                                                    location and the number     to part 60 of this
                                                            of traverse points.         chapter.
                                                           b. Determine velocity and   Method 2, 2A, 2C, 2F, 2G
                                                            volumetric flow-rate of     or 2H at appendix A-1 or
                                                            the stack gas.              A-2 to part 60 of this
                                                                                        chapter.
                                                           c. Determine oxygen and     Method 3A or 3B at
                                                            carbon dioxide              appendix A-2 to part 60
                                                            concentrations of the       of this chapter, or ANSI/
                                                            stack gas.                  ASME PTC 19.10-1981.\3\
                                                           d. Measure the moisture     Method 4 at appendix A-3
                                                            content of the stack gas.   to part 60 of this
                                                                                        chapter.

[[Page 56728]]

 
                                                           e. Measure the HAP metals   Method 29 at appendix A-8
                                                            emissions concentrations    to part 60 of this
                                                            and determine each          chapter. For liquid oil-
                                                            individual HAP metals       fired units, Hg is
                                                            emissions concentration,    included in HAP metals
                                                            as well as the total        and you may use Method
                                                            filterable HAP metals       29, Method 30B at
                                                            emissions concentration     appendix A-8 to part 60
                                                            and total HAP metals        of this chapter; for
                                                            emissions concentration.    Method 29, you must
                                                                                        report the front half
                                                                                        and back half results
                                                                                        separately. When using
                                                                                        Method 29, report metals
                                                                                        matrix spike and
                                                                                        recovery levels.
                                                           f. Convert emissions        Method 19 F-factor
                                                            concentrations              methodology at appendix
                                                            (individual HAP metals,     A-7 to part 60 of this
                                                            total filterable HAP        chapter, or calculate
                                                            metals, and total HAP       using mass emissions
                                                            metals) to lb/MMBtu or lb/  rate and gross output
                                                            MWh emissions rates.        data (see Sec.
                                                                                        63.10007(e)).
3. Hydrogen chloride (HCl) and      Emissions Testing....  a. Select sampling ports    Method 1 at appendix A-1
 hydrogen fluoride (HF).                                    location and the number     to part 60 of this
                                                            of traverse points.         chapter.
                                                           b. Determine velocity and   Method 2, 2A, 2C, 2F, 2G
                                                            volumetric flow-rate of     or 2H at appendix A-1 or
                                                            the stack gas.              A-2 to part 60 of this
                                                                                        chapter.
                                                           c. Determine oxygen and     Method 3A or 3B at
                                                            carbon dioxide              appendix A-2 to part 60
                                                            concentrations of the       of this chapter, or ANSI/
                                                            stack gas.                  ASME PTC 19.10-1981.\3\
                                                           d. Measure the moisture     Method 4 at appendix A-3
                                                            content of the stack gas.   to part 60 of this
                                                                                        chapter.
                                                           e. Measure the HCl and HF   Method 26 or Method 26A
                                                            emissions concentrations.   at appendix A-8 to part
                                                                                        60 of this chapter or
                                                                                        Method 320 at appendix A
                                                                                        to part 63 of this
                                                                                        chapter or ASTM D6348-03
                                                                                        \3\ with
                                                                                       (1) the following
                                                                                        conditions when using
                                                                                        ASTM D6348-03:
                                                                                       (A) The test plan
                                                                                        preparation and
                                                                                        implementation in the
                                                                                        Annexes to ASTM D6348-
                                                                                        03, Sections A1 through
                                                                                        A8 are mandatory;
                                                                                       (B) For ASTM D6348-03
                                                                                        Annex A5 (Analyte
                                                                                        Spiking Technique), the
                                                                                        percent (%) R must be
                                                                                        determined for each
                                                                                        target analyte (see
                                                                                        Equation A5.5);
                                                                                       (C) For the ASTM D6348-03
                                                                                        test data to be
                                                                                        acceptable for a target
                                                                                        analyte, %R must be 70%
                                                                                        >=R <=130%; and
----------------------------------------------------------------------------------------------------------------

    3.e.1(D) The %R value for each compound must be reported in the 
test report and all field measurements corrected with the calculated %R 
value for that compound using the following equation:
[GRAPHIC] [TIFF OMITTED] TR14NO18.072

and

----------------------------------------------------------------------------------------------------------------
                                                              You must perform the
 To conduct a performance test for                          following activities, as
   the following pollutant . . .     Using . . . (cont'd)   applicable to your input-   Using . . .\2\ (cont'd)
             (cont'd)                                       or output-based emission
                                                              limit . . . (cont'd)
----------------------------------------------------------------------------------------------------------------
                                                                                       (2) spiking levels
                                                                                        nominally no greater
                                                                                        than two times the level
                                                                                        corresponding to the
                                                                                        applicable emission
                                                                                        limit.
                                                                                       Method 26A must be used
                                                                                        if there are entrained
                                                                                        water droplets in the
                                                                                        exhaust stream.

[[Page 56729]]

 
                                                           f. Convert emissions        Method 19 F-factor
                                                            concentration to lb/MMBtu   methodology at appendix
                                                            or lb/MWh emissions rates.  A-7 to part 60 of this
                                                                                        chapter, or calculate
                                                                                        using mass emissions
                                                                                        rate and gross output
                                                                                        data (see Sec.
                                                                                        63.10007(e)).
                                    OR                     OR
                                    HCl and/or HF CEMS...  a. Install, certify,        Appendix B of this
                                                            operate, and maintain the   subpart.
                                                            HCl or HF CEMS.
                                                           b. Install, certify,        Part 75 of this chapter
                                                            operate, and maintain the   and Sec.   63.10010(a),
                                                            diluent gas, flow rate,     (b), (c), and (d).
                                                            and/or moisture
                                                            monitoring systems.
                                                           c. Convert hourly           Method 19 F-factor
                                                            emissions concentrations    methodology at appendix
                                                            to 30 boiler operating      A-7 to part 60 of this
                                                            day rolling average lb/     chapter, or calculate
                                                            MMBtu or lb/MWh emissions   using mass emissions
                                                            rates.                      rate and gross output
                                                                                        data (see Sec.
                                                                                        63.10007(e)).
4. Mercury (Hg)...................  Emissions Testing....  a. Select sampling ports    Method 1 at appendix A-1
                                                            location and the number     to part 60 of this
                                                            of traverse points.         chapter or Method 30B at
                                                                                        Appendix A-8 for Method
                                                                                        30B point selection.
                                                           b. Determine velocity and   Method 2, 2A, 2C, 2F, 2G
                                                            volumetric flow-rate of     or 2H at appendix A-1 or
                                                            the stack gas.              A-2 to part 60 of this
                                                                                        chapter.
                                                           c. Determine oxygen and     Method 3A or 3B at
                                                            carbon dioxide              appendix A-1 to part 60
                                                            concentrations of the       of this chapter, or ANSI/
                                                            stack gas.                  ASME PTC 19.10-1981.\3\
                                                           d. Measure the moisture     Method 4 at appendix A-3
                                                            content of the stack gas.   to part 60 of this
                                                                                        chapter.
                                                           e. Measure the Hg emission  Method 30B at appendix A-
                                                            concentration.              8 to part 60 of this
                                                                                        chapter, ASTM D6784,\3\
                                                                                        or Method 29 at appendix
                                                                                        A-8 to part 60 of this
                                                                                        chapter; for Method 29,
                                                                                        you must report the
                                                                                        front half and back half
                                                                                        results separately.
                                                           f. Convert emissions        Method 19 F-factor
                                                            concentration to lb/TBtu    methodology at appendix
                                                            or lb/GWh emission rates.   A-7 to part 60 of this
                                                                                        chapter, or calculate
                                                                                        using mass emissions
                                                                                        rate and gross output
                                                                                        data (see Sec.
                                                                                        63.10007(e)).
                                    OR                     OR
                                    Hg CEMS..............  a. Install, certify,        Sections 3.2.1 and 5.1 of
                                                            operate, and maintain the   appendix A of this
                                                            CEMS.                       subpart.
                                                           b. Install, certify,        Part 75 of this chapter
                                                            operate, and maintain the   and Sec.   63.10010(a),
                                                            diluent gas, flow rate,     (b), (c), and (d).
                                                            and/or moisture
                                                            monitoring systems.
                                                           c. Convert hourly           Section 6 of appendix A
                                                            emissions concentrations    to this subpart.
                                                            to 30 boiler operating
                                                            day rolling average lb/
                                                            TBtu or lb/GWh emissions
                                                            rates.
                                    OR                     OR
                                    Sorbent trap           a. Install, certify,        Sections 3.2.2 and 5.2 of
                                     monitoring system.     operate, and maintain the   appendix A to this
                                                            sorbent trap monitoring     subpart.
                                                            system.
                                                           b. Install, operate, and    Part 75 of this chapter
                                                            maintain the diluent gas,   and Sec.   63.10010(a),
                                                            flow rate, and/or           (b), (c), and (d).
                                                            moisture monitoring
                                                            systems.
                                                           c. Convert emissions        Section 6 of appendix A
                                                            concentrations to 30        to this subpart.
                                                            boiler operating day
                                                            rolling average lb/TBtu
                                                            or lb/GWh emissions rates.
                                    OR                     OR
                                    LEE testing..........  a. Select sampling ports    Single point located at
                                                            location and the number     the 10% centroidal area
                                                            of traverse points.         of the duct at a port
                                                                                        location per Method 1 at
                                                                                        appendix A-1 to part 60
                                                                                        of this chapter or
                                                                                        Method 30B at Appendix A-
                                                                                        8 for Method 30B point
                                                                                        selection.
                                                           b. Determine velocity and   Method 2, 2A, 2C, 2F, 2G,
                                                            volumetric flow-rate of     or 2H at appendix A-1 or
                                                            the stack gas.              A-2 to part 60 of this
                                                                                        chapter or flow
                                                                                        monitoring system
                                                                                        certified per appendix A
                                                                                        of this subpart.
                                                           c. Determine oxygen and     Method 3A or 3B at
                                                            carbon dioxide              appendix A-1 to part 60
                                                            concentrations of the       of this chapter, or ANSI/
                                                            stack gas.                  ASME PTC 19.10-1981,\3\
                                                                                        or diluent gas
                                                                                        monitoring systems
                                                                                        certified according to
                                                                                        part 75 of this chapter.

[[Page 56730]]

 
                                                           d. Measure the moisture     Method 4 at appendix A-3
                                                            content of the stack gas.   to part 60 of this
                                                                                        chapter, or moisture
                                                                                        monitoring systems
                                                                                        certified according to
                                                                                        part 75 of this chapter.
                                                           e. Measure the Hg emission  Method 30B at appendix A-
                                                            concentration.              8 to part 60 of this
                                                                                        chapter; perform a 30
                                                                                        operating day test, with
                                                                                        a maximum of 10
                                                                                        operating days per run
                                                                                        (i.e., per pair of
                                                                                        sorbent traps) or
                                                                                        sorbent trap monitoring
                                                                                        system or Hg CEMS
                                                                                        certified per appendix A
                                                                                        of this subpart.
                                                           f. Convert emissions        Method 19 F-factor
                                                            concentrations from the     methodology at appendix
                                                            LEE test to lb/TBtu or lb/  A-7 to part 60 of this
                                                            GWh emissions rates.        chapter, or calculate
                                                                                        using mass emissions
                                                                                        rate and gross output
                                                                                        data (see Sec.
                                                                                        63.10007(e)).
                                                           g. Convert average lb/TBtu  Potential maximum annual
                                                            or lb/GWh Hg emission       heat input in TBtu or
                                                            rate to lb/year, if you     potential maximum
                                                            are attempting to meet      electricity generated in
                                                            the 29.0 lb/year            GWh.
                                                            threshold.
5. Sulfur dioxide (SO2)...........  SO2 CEMS.............  a. Install, certify,        Part 75 of this chapter
                                                            operate, and maintain the   and Sec.   63.10010(a)
                                                            CEMS.                       and (f).
                                                           b. Install, operate, and    Part 75 of this chapter
                                                            maintain the diluent gas,   and Sec.   63.10010(a),
                                                            flow rate, and/or           (b), (c), and (d).
                                                            moisture monitoring
                                                            systems.
                                                           c. Convert hourly           Method 19 F-factor
                                                            emissions concentrations    methodology at appendix
                                                            to 30 boiler operating      A-7 to part 60 of this
                                                            day rolling average lb/     chapter, or calculate
                                                            MMBtu or lb/MWh emissions   using mass emissions
                                                            rates.                      rate and gross output
                                                                                        data (see Sec.
                                                                                        63.10007(e)).
----------------------------------------------------------------------------------------------------------------


0
18. In appendix A to Part 63:
---------------------------------------------------------------------------

    \2\ See Tables 1 and 2 to this subpart for required sample 
volumes and/or sampling run times.
    \3\ Incorporated by reference, see Sec.  63.14.
---------------------------------------------------------------------------

0
a. Revise section 12.4 in Method 303.
0
b. Revise section 2.0 in Method 308.
0
c. Remove and reserve section 7.2.2 in Method 308.
0
d. Revise sections 7.2.3.3, 8.1.2, 9.1, 11.3.2, and 12.1 in Method 308.
0
e. Add sections 12.5 and 13.0 in Method 308.
0
f. Revise sections 8.2.2.4 and 9.2.3 in Method 320.
0
g. Revise section 12.9 in Method 323.
0
h. Revise section 8.2.1.3, Figure 8.1. and section 8.2.3.2 in Method 
325A.
0
i. Add sections 8.2.3.3 and 8.4.3 in Method 325A.
0
j. Revise sections 9.3.2, 9.13, 11.3.2.5, and 12.2.2 in Method 325B.
0
k. Remove sections 12.2.3 and 12.2.4 in Method 325B.
0
l. Revise table 17.1 in Method 325B.
    The revisions and additions read as follows:

Appendix A to Part 63--Test Methods

* * * * *

Method 303--Determination of Visible Emissions From By-Product Coke 
Oven Batteries

* * * * *
    12.4 Average Duration of VE from Charging Operations. Use 
Equation 303-3 to calculate the daily 30-day rolling log average of 
seconds of visible emissions from the charging operation for each 
battery using these current day's observations and the 29 previous 
valid daily sets of observations.
[GRAPHIC] [TIFF OMITTED] TR14NO18.063

* * * * *

Method 308--Procedure for Determination of Methanol Emission From 
Stationary Sources

* * * * *
    2.0 Summary of Method
    A gas sample is extracted from the sampling point in the stack. 
The methanol is collected in deionized distilled water and adsorbed 
on silica gel. The sample is returned to the laboratory where the 
methanol in the water fraction is separated from other organic 
compounds with a gas chromatograph (GC) and is then measured by a 
flame ionization detector (FID). The fraction adsorbed on silica gel 
is extracted with deionized distilled water and is then separated 
and measured by GC/FID.
* * * * *
    7.2.2 [Reserved]
* * * * *
    7.2.3.3 Methanol Standards for Adsorbent Tube Samples. Prepare a 
series of methanol standards by first pipetting 10 ml of the 
methanol working standard into a 100-ml volumetric flask and 
diluting the contents to exactly 100 ml with deionized distilled 
water. This standard will contain 10 [micro]g/ml of methanol. 
Pipette 5, 15, and 25 ml of this

[[Page 56731]]

standard, respectively, into three 50-ml volumetric flasks. Dilute 
each solution to 50 ml with deionized distilled water. These 
standards will have 1, 3, and 5 [micro]g/ml of methanol, 
respectively. Transfer all four standards into 40-ml glass vials 
capped with Teflon[supreg]-lined septa and store under 
refrigeration. Discard any excess solution.
* * * * *
    8.1.2 Leak Check. A leak check before and after the sampling run 
is mandatory. The leak-check procedure is as follows:
    Temporarily attach a suitable (e.g., 0- to 40-ml/min) rotameter 
to the outlet of the DGM, and place a vacuum gauge at or near the 
probe inlet. Plug the probe inlet, pull a vacuum of at least 250 mm 
(10 inch) Hg or the highest vacuum experienced during the sampling 
run, and note the flow rate as indicated by the rotameter. A leakage 
rate in excess of 2 percent of the average sampling rate is 
acceptable.

    Note: Carefully release the probe inlet plug before turning off 
the pump.
* * * * *
    9.1 Miscellaneous Quality Control Measures. The following 
quality control measures are required:

------------------------------------------------------------------------
                                 Quality control
           Section                   measure               Effect
------------------------------------------------------------------------
8.1.2, 8.1.3, 10.1..........  Sampling equipment    Ensures accurate
                               leak check and        measurement of
                               calibration.          sample volume.
10.2........................  GC calibration......  Ensures precision of
                                                     GC analysis.
13.0........................  Methanol spike        Verifies all
                               recovery check.       methanol in stack
                                                     gas is being
                                                     captured in impinge/
                                                     adsorbent tube
                                                     setup.
------------------------------------------------------------------------

* * * * *
    11.3.2 Desorption of Samples. Add 3 ml of deionized distilled 
water to each of the stoppered vials and shake or vibrate the vials 
for 30 minutes.
* * * * *
    12.1 Nomenclature.

Caf = Concentration of methanol in the front of the 
adsorbent tube, [micro]g/ml.
Cab = Concentration of methanol in the back of the 
adsorbent tube, [micro]g/ml.
Ci = Concentration of methanol in the impinger portion of 
the sample train, [micro]g/ml.
E = Mass emission rate of methanol, [micro]g/hr (lb/hr).
ms = Total mass of compound measured in impinger and on 
adsorbent with spiked train (mg).
mu = Total mass of compound measured in impinger and on 
adsorbent with unspiked train (mg).
mv = Mass per volume of spiked compound measured (mg/L).
Mtot = Total mass of methanol collected in the sample 
train, [micro]g.
Pbar = Barometric pressure at the exit orifice of the 
DGM, mm Hg (in. Hg).
Pstd = Standard absolute pressure, 760 mm Hg (29.92 in. 
Hg).
Qstd = Dry volumetric stack gas flow rate corrected to 
standard conditions, dscm/hr (dscf/hr).
R = fraction of spiked compound recovered
s = theoretical concentration (ppm) of spiked target compound
Tm = Average DGM absolute temperature, degrees K 
([deg]R).
Tstd = Standard absolute temperature, 293 degrees K (528 
[deg]R).
Vaf = Volume of front half adsorbent sample, ml.
Vab = Volume of back half adsorbent sample, ml.
Vi = Volume of impinger sample, ml.
Vm = Dry gas volume as measured by the DGM, dry cubic 
meters (dcm), dry cubic feet (dcf).
Vm(std) = Dry gas volume measured by the DGM, corrected 
to standard conditions, dry standard cubic meters (dscm), dry 
standard cubic feet (dscf).
* * * * *
    12.5 Recovery Fraction (R)
    [GRAPHIC] [TIFF OMITTED] TR14NO18.064
    
    [GRAPHIC] [TIFF OMITTED] TR14NO18.065
    
    13.0 Method Performance
    Since a potential sample may contain a variety of compounds from 
various sources, a specific precision limit for the analysis of 
field samples is impractical. Precision in the range of 5 to 10 
percent relative standard deviation (RSD) is typical for gas 
chromatographic techniques, but an experienced GC operator with a 
reliable instrument can readily achieve 5 percent RSD. For this 
method, the following combined GC/operator values are required.
    (a) Precision. Calibration standards must meet the requirements 
in section 10.2.1 or 10.2.2 as applicable.
    (b) Recovery. After developing an appropriate sampling and 
analytical system for the pollutants of interest, conduct the 
following spike recovery procedure at each sampling point where the 
method is being applied.
    i. Methanol Spike. Set up two identical sampling trains. 
Collocate the two sampling probes in the stack. The probes shall be 
placed in the same horizontal plane, where the first probe tip is 
2.5 cm from the outside edge of the other. One of the sampling 
trains shall be designated the spiked train and the other the 
unspiked train. Spike methanol into the impinger, and onto the 
adsorbent tube in the spiked train prior to sampling. The total mass 
of methanol shall be 40 to 60 percent of the mass expected to be 
collected with the unspiked train. Sample the stack gas into the two 
trains simultaneously. Analyze the impingers and adsorbents from the 
two trains utilizing identical analytical procedures and 
instrumentation. Determine the fraction of spiked methanol recovered 
(R) by combining the amount recovered in the impinger and in the 
adsorbent tube, using the equations in section 12.5. Recovery values 
must fall in the range: 0.70 <= R <= 1.30. Report the R value in the 
test report.
    ii. [Reserved]
* * * * *

Method 320--Measurement of Vapor Phase Organic and Inorganic Emissions 
By Extractive Fourier Transform Infrared (FTIR) Spectroscopy

* * * * *
    8.2.2.4 Determine the percent leak volume %VL for the 
signal integration time tSS and for 
[Delta]Pmax, i.e., the larger of [Delta]Pv or 
[Delta]Pp, as follows:
[GRAPHIC] [TIFF OMITTED] TR14NO18.066


[[Page 56732]]


Where:

50 = 100% divided by the leak-check time of 2 minutes.
* * * * *
    9.2.3 Calculate the dilution ratio using the tracer gas as 
follows:
[GRAPHIC] [TIFF OMITTED] TR14NO18.067

[GRAPHIC] [TIFF OMITTED] TR14NO18.068

DF = Dilution factor of the spike gas; this value shall be >=10.
SF6(dir) = SF6 (or tracer gas) concentration 
measured directly in undiluted spike gas.
SF6(spk) = Diluted SF6 (or tracer gas) 
concentration measured in a spiked sample.
Spikedir = Concentration of the analyte in the spike 
standard measured by filling the FTIR cell directly.
CS = Expected concentration of the spiked samples.
Unspike = Native concentration of analytes in unspiked samples.
* * * * *

Method 323--Measurment of Formaldehyde Emissions From Natural Gas-Fired 
Stationary Sources-Acetyl Acetone Derivitization Method

* * * * *
    12.9 Formaldehyde Concentration Corrected to 15% Oxygen
* * * * *
[GRAPHIC] [TIFF OMITTED] TR14NO18.069

Method 325A--Volatile Organic Compounds From Fugitive and Area Sources: 
Sampler Deployment and VOC Sample Collection

* * * * *
    8.2.1.3 An extra sampler must be placed near known sources of 
VOCs if potential emission sources are within 50 meters (162 feet) 
of the boundary and the source or sources are located between two 
monitors. Measure the distance (x) between the two monitors and 
place another monitor approximately halfway between (x/2 10 percent) the two monitors. Only one extra sampler is 
required between two monitors to account for known sources of VOCs. 
For example, in Figure 8.1, the facility added three additional 
monitors (i.e., light shaded sampler locations), and in Figure 8.2, 
the facility added two additional monitors to provide sufficient 
coverage of all area sources.
[GRAPHIC] [TIFF OMITTED] TR14NO18.070


[[Page 56733]]



Figure 8.1. Facility with a Regular Shape Between 750 and 1,500 Acres 
in Area

* * * * *
    8.2.3.2 For facilities with a monitoring perimeter length 
greater than or equal to 7,315 meters (24,000 feet), sampling 
locations are spaced 610  76 meters (2,000  
250 feet) apart.
    8.2.3.3 Unless otherwise specified in an applicable regulation, 
permit or other requirement, for small disconnected subareas with 
known sources within 50 meters (162 feet) of the monitoring 
perimeter, sampling points need not be placed closer than 152 meters 
(500 feet) apart as long as a minimum of 3 monitoring locations are 
used for each subarea.
* * * * *
    8.4.3 When extenuating circumstances do not permit safe 
deployment or retrieval of passive samplers (e.g., extreme weather, 
power failure), sampler placement or retrieval earlier or later than 
the prescribed schedule is allowed but must occur as soon as safe 
access to sampling sites is possible.
* * * * *

Method 325B--Volatile Organic Compounds From Fugitive and Area Sources: 
Sampler Preparation and Analysis

* * * * *
    9.3.2 Field blanks must be shipped to the monitoring site with 
the sampling tubes and must be stored at the sampling location 
throughout the monitoring exercise. The field blanks must be 
installed under a protective hood/cover at the sampling location, 
but the long-term storage caps must remain in place throughout the 
monitoring period (see Method 325A). The field blanks are then 
shipped back to the laboratory in the same container as the sampled 
tubes. Collect at least two field blank samples per sampling period 
to ensure sample integrity associated with shipment, collection, and 
storage.
* * * * *
    9.13 Routine CCV at the Start of a Sequence. Run CCV before each 
sequence of analyses and after every tenth sample to ensure that the 
previous multi-level calibration (see section 10.0) is still valid.
* * * * *
    11.3.2.5 Whenever the thermal desorption--GC/MS analytical 
method is changed or major equipment maintenance is performed, you 
must conduct a new five-level calibration (see section 10.0). System 
calibration remains valid as long as results from subsequent CCV are 
within 30 percent of the most recent 5-point calibration (see 
section 9.13). Include relevant CCV data in the supporting 
information in the data report for each set of samples.
* * * * *
    12.2.2 Determine the equivalent concentrations of compounds in 
atmospheres as follows. Correct target compound concentrations 
determined at the sampling site temperature and atmospheric pressure 
to standard conditions (25 [deg]C and 760 mm mercury) using Equation 
12.5.
[GRAPHIC] [TIFF OMITTED] TR14NO18.071

Where:

mmeas = The mass of the compound as measured in the sorbent 
tube ([micro]g).
t = The exposure time (minutes).
tss = The average temperature during the collection period 
at the sampling site (K).
UNTP = The method defined diffusive uptake rate (sampling 
rate) (mL/min).

    Note: Diffusive uptake rates (UNTP) for common VOCs, 
using carbon sorbents packed into sorbent tubes of the dimensions 
specified in section 6.1, are listed in Table 12.1. Adjust analytical 
conditions to keep expected sampled masses within range (see sections 
11.3.1.3 to 11.3.1.5). Best possible method detection limits are 
typically in the order of 0.1 ppb for 1,3-butadiene and 0.05 ppb for 
volatile aromatics such as benzene for 14-day monitoring. However, 
actual detection limits will depend upon the analytical conditions 
selected.
* * * * *

                        Table 17.1--Summary of GC/MS Analysis Quality Control Procedures
----------------------------------------------------------------------------------------------------------------
              Parameter                       Frequency           Acceptance criteria       Corrective action
----------------------------------------------------------------------------------------------------------------
Bromofluorobenzene Instrument Tune     Daily \a\ prior to       Evaluation criteria      (1) Retune and or
 Performance Check.                     sample analysis.         presented in Section    (2) Perform
                                                                 9.5 and Table 9.2.       Maintenance.
Five point calibration bracketing the  Following any major      (1) Percent Deviation    (1) Repeat calibration
 expected sample concentration.         change, repair or        (%DEV) of response       sample analysis.
                                        maintenance or if        factors 30%.               check.
                                        meet method             (2) Relative Retention   (3) Prepare new
                                        requirements.            Times (RRTs) for         calibration standards
                                        Recalibration not to     target peaks 0.06 units from    repeat analysis.
                                                                 mean RRT.
Calibration Verification (CCV Second   Following the            The response factor      (1) Repeat calibration
 source calibration verification        calibration curve.       30% DEV      check.
 check).                                                         from calibration curve  (2) Repeat calibration
                                                                 average response         curve.
                                                                 factor.
Laboratory Blank Analysis............  Daily \a\ following      (1) <=0.2 ppbv per       (1) Repeat analysis
                                        bromofluoro benzene      analyte or <=3 times     with new blank tube.
                                        and calibration check;   the LOD, whichever is   (2) Check system for
                                        prior to sample          greater.                 leaks, contamination.
                                        analysis.               (2) Internal Standard    (3) Analyze additional
                                                                 (IS) area response       blank.
                                                                 40% and IS
                                                                 Retention Time (RT)
                                                                 0.33 min.
                                                                 of most recent
                                                                 calibration check.
Blank Sorbent Tube Certification.....  One tube analyzed for    <0.2 ppbv per VOC        Re-clean all tubes in
                                        each batch of tubes      targeted compound or 3   batch and reanalyze.
                                        cleaned or 10 percent    times the LOD,
                                        of tubes whichever is    whichever is greater.
                                        greater.
Samples--Internal Standards..........  All samples............  IS area response 40% and IS RT      invalidation.
                                                                 0.33 min.
                                                                 of most recent
                                                                 calibration validation.

[[Page 56734]]

 
Field Blanks.........................  Two per sampling period  No greater than one-     Flag Data for possible
                                                                 third of the measured    invalidation due to
                                                                 target analyte or        high blank bias.
                                                                 compliance limit.
----------------------------------------------------------------------------------------------------------------
\a\ Every 24 hours.

* * * * *
[FR Doc. 2018-24747 Filed 11-13-18; 8:45 am]
 BILLING CODE 6560-50-P


