
[Federal Register: December 17, 2008 (Volume 73, Number 243)]
[Rules and Regulations]               
[Page 76539-76558]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr17de08-8]                         

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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 51

[EPA-HQ-OAR-2004-0489; FRL-8749-5]
RIN 2060-AN20

 
Air Emissions Reporting Requirements

AGENCY: Environmental Protection Agency (EPA).

ACTION: Final rule.

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SUMMARY: This action finalizes changes to EPA's emission inventory 
reporting requirements. This action consolidates, reduces, and 
simplifies the current requirements; adds limited new requirements; 
provides additional flexibility to states in the ways they collect and 
report emissions data; and accelerates the reporting of emissions data 
to EPA by state and local agencies.

DATES: This final rule is effective on December 17, 2008.

ADDRESSES: EPA has established a docket for this action under Docket ID 
No. EPA-HQ-OAR-2004-0489. All documents in the docket are listed on the 
www.regulations.gov index. Although listed in the index, some 
information is not publicly available, e.g., CBI or other information 
whose disclosure is restricted by statute. Certain other material, such 
as copyrighted material, will be publicly available only in hard copy 
form. Publicly available docket materials are available either 
electronically through www.regulations.gov or in hard copy at the Air 
Emissions Reporting Requirements Docket, EPA/DC, EPA West Building, 
Room 3334, Constitution Ave., NW., Washington, DC. The Public Reading 
Room is open from 8:30 a.m. to 4:30 p.m., Monday through Friday, 
excluding legal holidays. The telephone number for the Public Reading 
Room is (202) 566-1744, and the telephone number for the Air Docket is 
(202) 566-1742.

FOR FURTHER INFORMATION CONTACT: For general questions, please contact 
Dennis Beauregard, U.S. EPA, Office of Air Quality Planning and 
Standards, Air Quality Assessment Division, Mail Code C339-02, Research 
Triangle Park, North Carolina 27711; telephone number: (919) 541-5512; 
fax number: (919) 541-0684; e-mail address: beauregard.dennis@epa.gov. 
For legal questions, please contact Kristi Smith, U.S. EPA, Office of 
General Counsel, Mail Code 2344A, 1200 Pennsylvania Avenue, NW., 
Washington, DC 20460, telephone (202) 564-3068, e-mail at 
smith.kristi@epa.gov.

SUPPLEMENTARY INFORMATION: 

Table of Contents

I. General Information
    A. Does this action apply to me?
    B. Where can I get a copy of this document and other related 
information?
    C. Public Comments on Proposed Rule
    D. Judicial Review
II. Background and Purpose of This Rulemaking
III. Response to Comments
    A. Major Source Definition for Point Source Reporting
    B. Harmonizing Report Due Dates
    C. Accelerating Report Due Dates
    D. Reporting Biogenic Emissions
    E. Reporting Emission Model Inputs
    F. Reporting Summer Day Emissions
    G. Reporting Winter Work Weekday Emissions
    H. New Data Elements
    I. Identification of New Emissions Related Data Requirements
    J. Revisions to Specific Data Elements
IV. This Action
    A. Consolidation of Reporting Requirements
    B. Point Source Reporting
    C. Report Due Dates
    D. Reporting Biogenic Emissions
    E. Reporting Emission Model Inputs
    F. Reporting Summer Day Emissions
    G. Reporting Winter Work Weekday Emissions
    H. New Data Elements
I. Identification of New Emissions Related Data Requirements
    J. Revisions to Specific Data Elements
    K. EPA Initiated Changes
V. Statutory and Executive Order Reviews
    A. Executive Order 12866: Regulatory Planning and Review
    B. Paperwork Reduction Act
    C. Regulatory Flexibility Act
    D. Unfunded Mandates Reform Act
    E. Executive Order 13132: Federalism
    F. Executive Order 13175: Consultation and Coordination With 
Indian Tribal Governments
    G. Executive Order 13045: Protection of Children From 
Environmental Health Risks and Safety Risks
    H. Executive Order 13211: Actions That Significantly Affect 
Energy Supply, Distribution, or Use
    I. National Technology Transfer Advancement Act
    J. Executive Order 12898: Federal Actions to Address 
Environmental Justice in Minority Populations and Low-Income 
Populations
    K. Congressional Review Act

I. General Information

A. Does this action apply to me?

    Categories and entities potentially regulated by this action 
include:

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                                                   NAICS code
                    Category                          \a\                Examples of regulated entities
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State/local/tribal government...................        92411  State, territorial, and local government air
                                                                quality management programs. Tribal governments
                                                                are not affected, unless they have sought and
                                                                obtained treatment as state status under the
                                                                Tribal Authority Rule and, on that basis, are
                                                                authorized to implement and enforce the Air
                                                                Emissions Reporting Requirements rule.
----------------------------------------------------------------------------------------------------------------
\a\ North American Industry Classification System.


[[Page 76540]]

    This table is not intended to be exhaustive, but rather provides a 
guide for readers regarding entities likely to be regulated by this 
action.\1\ This action requires states to report their emissions to us. 
It is possible that some states will require facilities within their 
jurisdictions to report emissions to the states. To determine whether 
your facility will be regulated by this action, you should examine the 
applicability criteria in 40 CFR 51.1 of this rule. If you have any 
questions regarding the applicability of this action to a particular 
entity, consult the person listed in the preceding FOR FURTHER 
INFORMATION CONTACT section.
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    \1\ As prescribed by the Tribal Authority Rule (63 FR 7253, Feb. 
12, 1998), codified at 40 CFR part 49, subpart A, tribes may elect 
to seek treatment as State (TAS) status and obtain approval to 
implement rules such as the AERR through a Tribal Implementation 
Plan (TIP), but tribes are under no obligation to do so. However, 
those tribes that have obtained TAS status are subject to the AERR 
to the extent allowed in their TIP. Accordingly, to the extent a 
tribal government has applied for and received TAS status for air 
quality control purposes and is subject to the AERR under its TIP, 
the use of the term State(s) in the AERR shall include that tribal 
government.
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B. Where can I get a copy of this document and other related 
information?

    In addition to being available in the docket, an electronic copy of 
this final action will also be available on the worldwide Web (WWW) 
through the Technology Transfer Network (TTN). Following the 
Administrator's signature, a copy of the final amendments will be 
placed on the TTN's Clearing House for Inventories and Emission Factors 
(CHIEF) Web site at http://www.epa.gov/ttn/chief.

C. Public Comments on Proposed Rule

    The 120-day comment period for the proposed rule expired on May 3, 
2006. We received comments from 39 correspondents. These comments were 
submitted by 22 state and local agency representatives, 1 organization 
of state and local clean air agencies, 9 industries, 2 chambers of 
commerce and 5 commenters with no identified affiliation. While several 
comments were received days after the comment period ended, EPA did not 
treat these comments differently from comments received during the 
comment period. EPA has carefully considered all comments in developing 
the final amendments. Summaries of significant comments and EPA's 
responses are contained in this preamble. All comments are summarized 
and addressed in the document titled ``Response to Comments,'' which is 
available from the docket.

D. Judicial Review

    Under section 307(b)(1) of the Clean Air Act (CAA), judicial review 
of this final rule is available only by filing a petition for review in 
the United States Court of Appeals for the District of Columbia Circuit 
by February 17, 2009. Only those objections to this final rule that 
were raised with reasonable specificity during the period for public 
comment may be raised during judicial review. 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 
EPA to enforce these requirements.
    Section 307(d)(7)(B) of the CAA further provides a mechanism for us 
to convene a proceeding for reconsideration, ``[i]f the person raising 
an objection can demonstrate to the Administrator that it was 
impracticable to raise such objection within [the period for public 
comment] or if the grounds for such objection arose after the period 
for public comment (but within the time specified for judicial review) 
and if such objection is of central relevance to the outcome of the 
rule.'' Any person seeking to make such a demonstration to us should 
submit a Petition for Reconsideration to the Office of the 
Administrator, U.S. EPA, Room 3000, Ariel Rios Building, 1200 
Pennsylvania Ave., NW., Washington, DC 20460, with a copy to both the 
persons listed in the preceding FOR FURTHER INFORMATION CONTACT 
section, and the Associate General Counsel for the Air and Radiation 
Law Office, Office of General Counsel (Mail Code 2344A), U.S. EPA, 1200 
Pennsylvania Ave., NW., Washington, DC 20460.

II. Background and Purpose of This Rulemaking

    In today's action, EPA is amending the emission inventory reporting 
requirements in 40 CFR part 51, subpart A, and in 40 CFR 51.122. This 
action harmonizes reporting requirements under the NOX SIP 
Call and the Consolidated Emissions Reporting Rule (CERR). It also 
removes and simplifies some existing emissions reporting requirements 
which we believe are not necessary or appropriate; allows states to 
better track changes in source emissions, shutdowns, and startups over 
time by using the 40 CFR 70 definition of major source for point source 
reporting; deletes a requirement for states to report biogenic 
emissions; and offers states the option of reporting emission model 
inputs in lieu of reporting emissions for certain source categories. 
These changes were widely supported by states because they will 
simplify and reduce the states' reporting burden.
    In the preamble to the January 3, 2006, AERR proposed rulemaking 
(71 FR 69) we discussed state reporting requirements under the Clean 
Air Interstate Rule (CAIR) and included requirements for CAIR reporting 
in 40 CFR 51.123-51.125 under Subpart A. On July 11, 2008, the United 
States Court of Appeals for the District Court of Columbia Circuit 
vacated CAIR in its entirety. Accordingly, all references to CAIR and 
its reporting requirements have been removed from the final AERR. If 
CAIR (or some similar rule) becomes effective in the future, EPA will 
initiate a new rulemaking, as necessary, to address emission reporting 
requirements for that rule.
    Because we are consolidating, harmonizing and updating two pre-
existing sets of state emissions reporting requirements, we are 
reviewing the purpose, authority, and history of emissions reporting 
requirements in general.
    Emission inventories are critical for the efforts of state, local, 
and Federal agencies to attain and maintain the National Ambient Air 
Quality Standards (NAAQS) that EPA has established for criteria 
pollutants, such as ozone, particulate matter (PM) and carbon monoxide 
(CO). To assist these efforts, EPA initiated an effort in the early 
1990's to develop a central repository of inventory data for all states 
that is now known as the National Emission Inventory (NEI). Emission 
inventory data reported electronically under the CERR is stored in the 
NEI database and used by EPA and by states for air quality modeling, 
tracking progress in meeting CAA requirements, setting policy, and 
answering questions from the public. States often use the NEI as a 
starting point in developing emission inventories for support of State 
implementation plans (SIPs).
    Pursuant to its authority under sections 110 and 172 of the CAA, 
EPA has required SIPs to include inventories containing information 
regarding criteria pollutant emissions and their precursors (e.g., 
volatile organic compounds (VOC)). The EPA codified these inventory 
requirements in subpart Q of 40 CFR part 51 in 1979 and amended them in 
1987.
    The 1990 Amendments to the CAA revised many of the CAA provisions 
related to the attainment of the NAAQS and the protection of visibility 
in Class I areas. These revisions established new periodic emission 
inventory requirements applicable to certain areas that were designated 
nonattainment for

[[Page 76541]]

certain pollutants. For example, section 182(a)(3)(A) required states 
to submit an emission inventory every 3 years for ozone nonattainment 
areas beginning in 1993. Similarly, section 187(a)(5) required states 
to submit an inventory every 3 years for CO nonattainment areas. The 
EPA, however, did not immediately codify these statutory emission 
reporting requirements in the CFR, but simply relied on the statutory 
language to implement them.
    Title IV of the 1990 CAA Amendments also added requirements for 
reporting of emissions by sources subject to the Acid Rain Program 
(ARP). Affected sources must report hourly NOX, 
SOX and CO2 data to EPA's Clean Air Markets 
Division on a quarterly basis. Generally, these sources report annual 
NOX and SOX data aggregated from the hourly ARP 
data as well as other criteria and precursor pollutant emissions to 
states to satisfy reporting requirements for state permitting and 
emission inventory programs.
    In 1998, EPA promulgated the NOX SIP Call which required 
the affected states and the District of Columbia to submit SIP 
revisions providing nitrogen oxides (NOX) reductions to 
reduce their adverse impact on downwind ozone nonattainment areas. See 
63 FR 57356 (October 27, 1998). As part of that rule, codified in 40 
CFR 51.122, EPA established emissions reporting requirements to be 
included in the SIP revisions required under that action.
    Another set of emissions reporting requirements, the CERR, was 
promulgated by EPA in 2002, and is codified at 40 CFR part 51, subpart 
A. See 67 FR 39602 (June 10, 2002). These requirements replaced the 
requirements previously contained in subpart Q of 40 CFR part 51, 
expanding their geographic and pollutant coverages, while simplifying 
them in other ways.
    The principal statutory authority for the emission inventory 
reporting requirements outlined in this preamble is found in CAA 
section 110(a)(2)(F), which provides that SIPs must require ``as may be 
prescribed by the Administrator * * * (ii) periodic reports on the 
nature and amounts of emissions and emissions-related data from such 
sources.'' Section 301(a) of the CAA provides authority for EPA to 
promulgate regulations under this provision.\2\ At present, the 
emissions reporting requirements applicable to states are contained in 
two different locations: Subpart A of 40 CFR part 51 (the CERR) and 40 
CFR 51.122 in subpart G (the NOX SIP Call). This final rule 
will consolidate these requirements, with modifications as described 
below. The modifications are intended to harmonize, reduce, and 
simplify the emissions reporting requirements, and also make emissions 
reporting easier.
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    \2\ Other CAA provisions relevant to these proposed amendments 
include section 172(c)(3) (requires SIPs for nonattainment areas to 
include comprehensive, current inventory of actual emissions, 
including periodic revisions); section 182(a)(3)(A) (requires 
emission inventories from ozone nonattainment areas); and section 
187(a)(5) (requires emission inventories from CO nonattainment 
areas).
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    Under the NOX SIP Call requirements in 40 CFR 51.122, 
NOX emissions for a defined 5-month ozone season (May 1 
through September 30) from sources that the state has subjected to 
emissions control to comply with the NOX SIP Call are 
required to be reported by the affected states to EPA every year. 
However, NOX emissions from sources reporting directly to 
EPA as part of the NOX trading program are not required to 
be reported by the states to EPA every year. The affected states are 
also required to report ozone season emissions and typical summer work 
weekday emissions of NOX from all sources every third year 
(2002, 2005, 2008, etc.). This triennial reporting process does not 
have an exemption for sources participating in the NOX SIP 
Call emissions trading program. Section 51.122 requires that a number 
of data elements be reported in addition to ozone season NOX 
emissions. These data elements describe some of the source's specific 
physical and operational parameters.
    Emissions reporting under the NOX SIP Call (promulgated 
October 27, 1998) was required for the 2002 inventory year which was 
the year prior to the emissions reductions requirement. The reports are 
due to EPA on December 31 of the year following the inventory year. For 
example, emissions from all sources and types in the 2002 ozone season 
were required to be reported on December 31, 2003. However, because the 
Court which heard challenges to the NOX SIP Call delayed the 
implementation by one year to 2004, see Michigan v. EPA, 213 F.3d 663 
(D.C. Cir. 2000), cert. denied, 121 S. Ct. 1225, 149 L. ED. 135 (2001), 
no state was required to start reporting until the 2003 inventory year. 
In addition, EPA subsequently promulgated a rule to subject Georgia and 
Missouri to the NOX SIP Call with an implementation date of 
2007. See 69 FR 21604 (April 21, 2004). For these states, emissions 
reporting began with 2006. The emissions reporting requirements under 
the NOX SIP Call presently affect the District of Columbia 
and 20 states.
    As noted above, the other set of emissions reporting requirements 
is codified at subpart A of part 51. Although entitled the 
``Consolidated Emissions Reporting Rule,'' the CERR left in place 
separate reporting requirements for the NOX SIP Call under 
40 CFR 51.122. The CERR requirements were aimed at obtaining emissions 
information to support a broader set of purposes under the CAA than 
were the reporting requirements under the NOX SIP Call. The 
CERR requirements apply to all states and include the reporting of all 
criteria pollutants and criteria pollutant precursors.
    The CERR and the NOX SIP Call both require states to 
report emissions of all sources at 3-year intervals (inventory years 
2002, 2005, 2008, etc.). However, there are a number of differences 
between the two rules. The CERR also requires reporting of certain 
large sources every year, and the required reporting date under the 
CERR is 5 months later than under the NOX SIP Call reporting 
requirements. Also under the CERR, emissions must be reported by all 
states as a total for the entire inventory year, for a typical work 
weekday in winter, and for a typical work weekday in summer, but not a 
total for the 5-month ozone season as is required by the NOX 
SIP Call. The NOX SIP Call requires a special all-sources 
report by affected states for the year 2007 due December 31, 2008.\3\ 
Finally, the CERR and the NOX SIP Call differ in what non-
emissions data elements must be reported.
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    \3\ It is important to note that the NOX SIP Call 
requires a special all-sources report by affected States for the 
2007 inventory year due December 31, 2008. While the CAIR had 
removed the requirement to submit the special all-sources report, 
the recent vacatur of CAIR in its entirety means that the special 
all-sources report is once again a requirement under the 
NOX SIP Call.
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III. Response to Comments

    We have addressed all comments in detail and placed them in the 
Response to Comments document in the docket. The comments that concern 
significant proposed changes have been summarized and addressed, as 
discussed below. As an aid to the reader, we have grouped related 
comments under headings that generally correspond to the organization 
of the proposed rulemaking.

A. Major Source Definition for Point Source Reporting

    In all states, we proposed to expand the definition of sources that 
must be reported in the point source format,

[[Page 76542]]

resulting in fewer sources included in the nonpoint source formats.\4\ 
We proposed to base the requirement for point source format reporting 
on whether the source is a major source under 40 CFR part 70 for the 
pollutants for which reporting is required, i.e., for CO, VOC, 
NOX, sulfur dioxide (SO2), PM2.5, 
PM10, lead and ammonia (NH3). Those major sources 
were further classified as Type A (large sources) and Type B (small 
sources), with differing reporting requirements for each type. 
Currently, the requirement for point source reporting is based on 
thresholds of actual emissions during the inventory year. While it has 
always been an option for states to include all such sources, and we 
know that some states already do, expanding the point source definition 
may require more sources to be reported as point sources every third 
year. Affected states would continue to report their actual emissions, 
but the new approach would make it possible to better track changes in 
source emissions, shutdowns, and start-ups over time. Because states 
have existing lists of sources subject to 40 CFR part 70 requirements, 
this approach would result in a more stable universe of reporting point 
sources, which in turn would facilitate elimination of overlaps and 
gaps in estimating point source emissions, as compared to nonpoint 
source emissions. Under this proposal, states would know well in 
advance of the start of the inventory year which sources would need to 
be reported. We proposed that these new requirements begin with the 
2008 inventory year.
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    \4\ We use the term ``nonpoint source'' to refer to a stationary 
source that is treated for inventory purposes as part of an 
aggregated source category rather than as an individual facility. In 
the existing subpart A of part 51, such emissions sources are 
referred to as ``area sources.'' However, the term ``area source'' 
is used in section 112 of the CAA to indicate a nonmajor source of 
hazardous air pollutants, which could or could not be a point 
source. As emission inventory activities increasingly encompass both 
NAAQS-related pollutants and hazardous air pollutants, the differing 
uses of ``area source'' can cause confusion. Accordingly, EPA is 
substituting the term ``nonpoint source'' for the term ``area 
source'' in subpart A and in subpart G (Sec.  51.122 to avoid 
confusion.
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    We received a number of comments on the provision regarding point 
source format reporting. All commenters supported changing the 
definition of a point source for reporting purposes to that used in 40 
CFR part 70. Therefore, EPA intends to implement this reporting change 
but with certain caveats prompted by other comments, as discussed 
below.
    One commenter thought that the table included in the definition for 
point source in the proposed rule was inconsistent with the proposed 
reporting requirements using the Title V definition. The commenter 
noted that the definition for ``type A source'' seemed inconsistent 
with the proposed change from actual emissions to ``potential to 
emit.''
    The EPA agrees with the commenter that there were some 
inconsistencies in the proposed rule. The preamble for the proposed 
rule stated that EPA is ``proposing to base the requirement for point 
source format reporting on whether the source is a major source under 
40 CFR part 70 for the pollutants for which reporting is required * * 
*.'' This indicated that reporting thresholds for all point sources 
would be based upon the 40 CFR part 70 definition of ``potential to 
emit'' (PTE). However, we further stated that ``we are proposing to 
expand the definition of what sources must be reported in point source 
format so that fewer sources would be included in nonpoint source 
emissions.'' Later in the preamble, we stated that ``this change may 
require more sources to be reported as point sources every third 
year.'' Both sentences imply that the change would apply only to Type B 
sources. Application of the 40 CFR part 70 point source definition to 
all point sources would likely require some existing Type B point 
sources to be reported each year as Type A sources, which was not 
identified as a likely change in point source reporting.
    The EPA used the definition for point source to establish that use 
of the 40 CFR part 70 major source definition would begin with the 2008 
inventory year. Point source reporting for years prior to 2008 would 
continue to be based upon use of ``actual emissions.'' However, the 
point source definition includes a table for reporting Type A and B 
sources, and that table indicates that the reporting thresholds in the 
table are ``in tons per year of actual emissions.'' While EPA intended 
that the emissions reported would continue to be actual emissions, PTE 
was to be used to determine point source reporting requirements, and no 
consideration of this change is included in the table.
    The proposed definition for Type A sources required use of ``actual 
annual emissions'' to determine reporting requirements. However, the 
use of actual annual emissions to determine Type A sources appears to 
conflict with the point source definition (applicable to both Type A 
and B point sources), which indicated that emission reporting for 2008 
and later years would be determined using the 40 CFR part 70 definition 
of ``major source,'' which uses PTE.
    Given the confusing preamble language and apparent conflict in the 
text of the regulation, EPA will accept use of either approach to 
determine Type A point source reporting requirements for the 2009 
inventory year. For the inventory years following 2009, EPA will expect 
states to use the 40 CFR part 70 major source definition for all point 
sources to simplify reporting requirements, as discussed in the 
proposal preamble. Accordingly, EPA has revised the definition of Type 
A sources and Table 1 in Appendix A to subpart A to make clear that the 
40 CFR part 70 definition of major source will be used to determine 
point source reporting requirements following the 2009 inventory year.

B. Harmonizing Report Due Dates

    The CERR reporting dates are 5 months later than the NOX 
SIP Call. The NOX SIP Call rule requires the affected states 
to submit emission inventory reports for a given ozone season to EPA by 
December 31 of the following year, 12 months after the end of the 
inventory year. The CERR requires similar but not identical reports 
from all states by the following May 31, 17 months after the end of the 
inventory year. The EPA believes that harmonizing these reporting dates 
would be efficient for both states and EPA.
    The EPA proposed to shorten the timeline of 17 months for reporting 
under the CERR to be consistent with the 12 months for reporting under 
the NOX SIP Call. A second alternative requiring 12 months 
for reporting of point sources and 17 months for nonpoint and mobile 
sources was also proposed.
    Most commenters expressed support for the concept of harmonizing 
the reporting requirements under the NOX SIP Call and the 
CERR, but were concerned about the alternative of using the 12-month 
timeline for some or all sources for the 2008 inventory year. In 
general, the commenters were concerned that a 12-month timeline might 
compromise the quality of the data and urged EPA to harmonize the 
report due date at 17 months for all emission sectors (point, nonpoint, 
and mobile).
    The EPA agrees with the concerns of the commenters regarding the 
proposal to tighten the timeline to 12 months for the 2008 inventory 
year, and accordingly, has decided to delay implementing the AERR and 
the 12-month timeline for reporting of all emission sectors until 2009. 
Since the 2009 and 2010 inventory years require reporting for Type A 
(large point) sources only, one impact of this action

[[Page 76543]]

is to delay implementing a 12-month timeline for reporting of all 
sources until the 2011 inventory year, which is the next 3-year 
comprehensive emission inventory year. For the 2008 inventory year, 
retaining the existing 17-month timeline under the CERR will provide 
additional stability for states using the new data submittal and 
operating procedures for the Emission Inventory System (EIS), which 
will be operational for the 2008 inventory year. The 17-month timeline 
will allow state agencies to adapt to the new data reporting and system 
requirements without introducing additional constraints and uncertainty 
to the process. It will also provide a complete inventory cycle for EPA 
to correct any problems with the new system procedures.
    The EPA notes that although some commenters supported a 17-month 
timeline for reporting of all source emissions for the 2008 inventory 
year, we did not propose to extend the existing 12-month timeline for 
reporting under the NOX SIP Call. Thus, the NOX 
SIP Call 12-month timeline will be retained for the 2008 inventory 
year, and harmonized reporting under the AERR will be implemented for 
the 2009 inventory year.

C. Accelerating Report Due Dates

    The EPA believes that the public is best served by making 
environmental information available as soon as possible. Therefore, we 
proposed that the reporting schedule be further accelerated for the 
triennial year 2011 and all following years by requiring that emissions 
data from all point sources be reported within 6 months from the end of 
the inventory year, i.e., by June 30 of the following year. Under the 
proposed rule, reporting on all other sources would be required within 
12 months, i.e., by December 31 of the following year. There is 
precedent for requiring reporting of point source emissions data within 
6 months. For example, beginning with the year 1979, states were 
required, under subpart Q, to report point source emissions data within 
6 months. We invited comment on alternative reporting schedules of 6 to 
12 months for point sources and 12 to 17 months for all other sources.
    Most commenters were concerned with the proposed 6-month timeline 
for states to submit point source data for the 2011 inventory year. The 
commenters generally indicated that the accelerated schedule would 
create a very short timeframe for point sources to gather the emissions 
data needed to report to states and for states to process and quality 
assure the data, resulting in incomplete and inconsistent data quality. 
Several commenters thought that tightening the timeline for point 
sources to 9 to 12 months would be possible. Some of the commenters 
thought that 17 months would continue to be needed for the nonpoint and 
mobile source inventory sectors due to the unavailability of data on a 
shorter schedule from other agencies needed to develop the emission 
estimates.
    Two commenters wanted to retain the existing 17-month timeline for 
reporting point, nonpoint, and mobile source data. One of the 
commenters expressed concerns that were based primarily on having to 
conduct a similar data collection and compilation effort within 
California. The commenter thought that the time to conduct this state-
based effort made accelerating the Federal emissions reporting timeline 
to less than 17 months unrealistic and could compromise data quality. 
The other commenter expressed opposition to the concept of a bifurcated 
reporting system which would require submittal of point and nonpoint/
mobile source sector data on separate dates.
    Two commenters thought that Web-based submittal tools needed to 
move beyond the developmental stage before it would be possible to 
shorten the reporting timeframe to 12 months. One of the two commenters 
further indicated that much of the activity data needed to develop the 
nonpoint source estimates are not available until 12 to 15 months after 
the inventory year and thought EPA should consider using previous year 
data as a surrogate for the current year.
    The EPA agrees with the concerns expressed by most of the 
commenters regarding the proposed 6-month timeline for submittal of 
point source data by the 2011 inventory year. When EPA developed the 
proposed rulemaking, a project known as the ``Rapid Inventory 
Development Pilot'' was initiated. The EPA has now evaluated the 
results of the project and believes that a 6-month timeline for 
developing and submitting inventory data is not yet achievable on a 
consistent basis with application of proper quality assurance 
procedures for all emission inventory source sectors. However, the 
project did demonstrate that a timeline shorter than the existing 17 
months is possible, since a number of states involved in the project 
were able to submit data to EPA 10 months after the emission inventory 
year.
    The EPA understands that some difficulties were encountered by 
several of the states participating in the project, which indicates 
that additional time is needed to refine both the electronic tools and 
the procedures to support, on a consistent basis, development and 
submittal of emissions data on an expedited timeline. To allow 
additional time for technological improvements, EPA will implement a 
12-month timeline for data submittals beginning with the 2009 inventory 
year. The effect of this will be to require reporting of Type A (large 
point) sources using a 12-month timeline for the 2 years before the 
comprehensive triennial emission inventory effort for the 2011 
inventory year. This will allow for additional development of 
electronic tools and refinement of data submittal procedures and for 
states to become familiar with operation of the new EIS before the 2011 
triennial inventory is due.

D. Reporting Biogenic Emissions

    We proposed to remove a requirement in the existing CERR for states 
to report annual and typical ozone season day biogenic emissions. 
Biogenic emissions are estimated by a computer model using 
meteorological and land use/land cover data as inputs. Because EPA can 
develop these data inputs directly without having them reported by 
state, local, and tribal agencies, we believe the requirement for 
reporting biogenic emissions serves no useful purpose. This change does 
not affect our expectation that biogenic emissions be appropriately 
considered in ozone and PM2.5 attainment demonstrations.
    Many comments were submitted on the biogenic emissions reporting 
requirement, and all supported EPA's proposal to not include biogenic 
emissions reporting in the AERR. Based upon the support expressed by 
the commenters, EPA will implement this part of the AERR as proposed by 
not including the existing reporting requirements (under the CERR) for 
annual and typical ozone season day biogenic emissions.

E. Reporting Emission Model Inputs

    We proposed a new provision that would allow states the option of 
providing emission inventory estimation model inputs in lieu of the 
actual emissions estimates developed from those inputs. This provision 
was limited to source categories for which, prior to the report due 
date, EPA developed or adopted emissions estimation models and through 
guidance defined their necessary inputs. This provision would allow 
states to take advantage of new emissions estimation tools for greater 
efficiency, although the states would continue to be required to 
provide inputs representative of their conditions. Under this option, 
EPA will run the emissions model(s) to calculate

[[Page 76544]]

emissions and will enter the emissions data into the appropriate 
database. Section 51.15(d) limited this option to ``* * * models 
capable of estimating emissions from a certain source type on a 
national scale * * *.'' and thus restricted its application to nonpoint 
and mobile source emission categories. We proposed that this option 
would be available starting with the reports on 2005 emissions. 
Furthermore, we invited comment on requiring states to provide model 
inputs for source categories for which they have utilized a widely 
available emissions model as a means of improving the transparency of 
the emission estimates themselves and the overall utility of the 
submissions in meeting the objectives of the emissions reporting 
requirements. Providing model inputs would improve EPA's ability to 
assess the quality of the states' emission estimates and to project 
future emissions.
    We received several comments on this provision. Most of the 
comments were in favor of allowing the option to report model inputs in 
lieu of the emissions estimated from the models. However, many of the 
commenters did not want to see the reporting of model inputs become a 
reporting requirement.
    The EPA agrees with the majority of commenters who supported the 
option of submitting input data in lieu of emission estimates and will 
make this an option. Although the proposed rule indicated this option 
would be available for reporting emissions for the 2005 inventory year, 
EPA intends to delay implementation of this option until the 2007 
inventory year (due date May 31, 2009) since this rule was not 
published before the due date for data from the 2005 inventory year 
(May 31, 2007). Although EPA encourages states to submit model inputs 
where they have used a widely available model to develop emission 
estimates, states will not be required to submit input data when they 
provide emission estimates.
    The EPA notes that emissions data based upon physical measurements 
are generally preferred over estimates developed using models or 
emission factors, but the Agency believes that models and emission 
factors are appropriate emission estimation tools when addressing the 
ubiquitous nature of some sources and attempting to account for the 
many variables affecting certain annual emission estimates. To improve 
the application of models and emission factors, EPA urges states to 
develop locally derived input data based upon physical measurements 
wherever possible.

F. Reporting Summer Day Emissions

    We proposed to retain the requirement for reporting of summer day 
emissions from all sources (except biogenic sources) at three-year 
intervals, but to restrict the requirement to only those states with 
ozone nonattainment areas or states covered by the NOX SIP 
Call. We proposed to restrict the requirement to VOC and NOX 
emissions, but we invited comment on whether CO emissions should be 
required also.
    Several commenters supported EPA's proposal for reporting of summer 
day emissions of NOX and VOC. Two commenters thought that 
ozone season-day NOX, VOC and CO emissions should be 
reported for all areas, while two other commenters questioned the value 
of reporting summer day VOC and NOX emissions. Another 
commenter thought that requiring ozone season and daily emissions for 
point, nonpoint, and nonroad sources was redundant since the temporal 
parameters needed to calculate these emissions were required to be 
reported.
    One commenter thought that summer day emissions of CO should not be 
reported, while two other commenters believed that reporting CO summer 
day emissions was necessary but only for CO nonattainment areas.
    The EPA agrees with the majority of the commenters that the 
reporting requirements for summer day emissions (VOC and 
NOX) from all sources (except biogenic sources) at 3-year 
intervals should only include states with ozone nonattainment areas and 
states covered by the NOX SIP Call. However, EPA believes 
that it is appropriate to also include summer day emissions reporting 
for sources in attainment counties that are covered by the 
nonattainment area modeling domain used to demonstrate reasonable 
further progress (RFP). The EPA's current guidance requires RFP 
calculations to be done on an ``average summer weekday emissions'' 
basis. If the state takes credit for reductions from outside the 
nonattainment area, the requirement will be to determine whether there 
were reductions in average summer weekday emissions from those sources.
    The EPA believes that reporting of CO summer day emissions is not 
necessary since, as noted by one commenter, other data elements already 
reported allow summer day emissions to be derived and CO emissions, 
unlike VOC and NOX emissions, are not used for tracking RFP. 
Therefore, reporting of CO summer day emissions regardless of ozone 
attainment status will not be a requirement under the AERR.
    The proposed rule indicated that ``We are proposing to retain the 
requirement for reporting of summer day emissions * * *.'' However, the 
CERR actually requires reporting of ``work weekday emissions.'' for 
point sources and ``summer work weekday emissions'' for nonpoint and 
mobile sources. Although we did not receive comments on the work 
weekday versus summer day emissions issue, we realize that the preamble 
language indicated that no changes would be made to the summer day 
emissions definition contained in the CERR (beyond the proposal to 
restrict the requirement to ozone nonattainment and NOX SIP 
Call areas), but the proposed AERR regulatory language made additional 
changes to the definition of ``summer day emissions'' since the CERR 
required ``work weekday emissions'' for point sources and ``summer work 
weekday emissions'' for nonpoint, nonroad mobile and onroad mobile 
sources.
    Accordingly, in recognition of the conflicting language and as 
indicated in the preamble to the proposed rule, the final rule will 
retain the definition of and requirement to report ``summer day 
emissions'' for all sources revised only to the extent that it will 
restrict the requirement to ozone nonattainment areas (including 
sources in counties that are covered by the modeling domain used to 
demonstrate RFP) and NOX SIP Call areas. In addition, the 
definition for summer day emissions has been revised to require the use 
of work weekday emissions (as required under the CERR) when estimating 
summer day emissions for reporting.

G. Reporting Winter Work Weekday Emissions

    We proposed to delete the existing requirement that all states 
report emissions for a winter work weekday. This requirement was 
originally aimed at tracking progress towards attainment of the CO 
NAAQS. We stated our belief that applying this requirement to all 
states was no longer warranted given that CO violations are currently 
observed in few areas and indicated that we would work directly with 
the few remaining affected states to monitor efforts to attain the CO 
NAAQS without requiring formal submission of CO inventories.
    Most commenters supported EPA's proposal to delete the reporting 
requirement for winter work weekday emissions of CO. However, one 
commenter opposed EPA's proposal to eliminate the existing reporting 
requirement. The commenter thought that the requirement should be 
retained for states that are required to submit

[[Page 76545]]

emission inventory data as part of their CO maintenance plans.
    The EPA finds the comment that CO reporting is needed for CO 
maintenance plans to be compelling. This need was not considered in the 
proposed rule. As noted by the commenter, CO maintenance plans require 
tracking of emission reductions to ensure continued maintenance of the 
CO NAAQS. Reporting emissions under this rule will aid in standardizing 
the data reported and facilitate review of the data by interested 
parties.
    A concern not raised by commenters but brought to EPA's attention 
since the proposed rule was published relates to requests from states 
to discontinue monitoring of ambient CO concentrations in certain areas 
that have been redesignated to attainment for CO. The EPA's approval of 
such requests is conditioned on the expectation that emissions will not 
increase and areas will continue to maintain the CO NAAQS. To provide a 
means of ensuring that the CO NAAQS are maintained in areas that no 
longer have ambient CO monitors, emissions reporting becomes even more 
critical.
    The proposed rule indicated that EPA could work on a case-by-case 
basis with the few remaining CO nonattainmment areas regarding 
reporting of winter work weekday emissions. However, in this final 
rule, EPA has determined that for those areas in which EPA determines 
that reporting is still needed, reporting emissions under this rule 
will ensure that CO emissions are reported periodically and that the 
data are in a standardized format that will facilitate data review and 
thus help ensure attainment and maintenance of the CO NAAQS. Therefore, 
to monitor progress toward attaining and maintaining the CO NAAQS, EPA 
will retain the requirement for reporting winter work weekday emissions 
of CO, but will limit it to CO nonattainment areas and areas with CO 
maintenance plans.

H. New Data Elements

    We proposed to add several required data elements to the existing 
rule. These were contact name, contact phone number, emission release 
point type, control status, emission type, and method accuracy 
description (MAD) codes.
    The contact name and phone number are for the lead contact in the 
organization submitting the data and are needed to ensure that EPA 
knows who to contact if issues arise with a data submission.
    The emission release point type is a code for the physical 
configuration of the emission release point (e.g., vertical stack, 
fugitive, etc.). It is needed to correctly model how emissions are 
released into the atmosphere.
    The control status is a code that represents whether reported 
emissions are controlled or uncontrolled. It is needed to project 
future emissions correctly and to evaluate the impact of emission 
control programs correctly. We also invited comment on whether, with 
this addition, the current data elements that describe emissions 
control equipment type and efficiency were adequate. We indicated our 
belief that it is important for states to report on the manner in which 
emissions from sources are currently controlled so that opportunities 
for control strategy and regulatory development could be assessed. We 
questioned whether the existing data elements were adequate and 
appropriate for that purpose. The existing data elements related to 
control measures are primary control efficiency, secondary control 
efficiency, control device type, and rule effectiveness for point 
sources; and total capture/control efficiency, rule effectiveness, and 
rule penetration for nonpoint sources and nonroad mobile sources.\5\
---------------------------------------------------------------------------

    \5\ Additional information on emissions data elements and the 
formats and valid codes presently in use for State reporting to EPA 
is available on the EPA Web site http://www.epa.gov/ttn/chief/nif/
index.html.
---------------------------------------------------------------------------

    The emission type is a code describing the temporal period of 
emissions reported (e.g., annual, day, etc.). It is needed to ensure 
that emissions estimates are used properly.
    The MAD codes provide information about geographic coordinates, 
including the collection method, accuracy, and other descriptors. We 
proposed to add MAD codes to this rule because EPA's Latitude/Longitude 
Data Standard \6\ requires their collection when latitude and longitude 
are collected. The MAD codes are horizontal collection method code, 
horizontal accuracy measure, horizontal reference datum code, reference 
point code, source map scale number, and coordinate data source code. 
The EPA believed that many states would be able to report these codes 
based on existing information. However, in the event that the 
information needed to report these codes was not available, states 
would not be required to do additional work since there is a ``don't 
know'' code.
---------------------------------------------------------------------------

    \6\ Environmental Data Registry: Latitude/Longitude Standard. 
2000. U.S. EPA. December 11, 2000. http://oaspub.epa.gov/edr/edr_
proc_qry.navigate?P_LIST_OPTION_CD=CSDIS&P_REG_AUTH_
IDENTIFIER=1&P_DATA_IDENTIFIER=19939&P_VERSION=2.
---------------------------------------------------------------------------

    While several commenters supported EPA's proposal to add new data 
elements to this rule, a number of other commenters appeared to be 
confused by EPA's proposal since the NEI Input Format (NIF) included 
many of the new data elements, and they were already reporting the data 
to EPA. These commenters believed that adding the new data elements to 
this rule was not necessary and that the proper place for such detailed 
information was in the NIF data reporting format or in guidance 
documents. Two commenters in this group suggested that a Federal-state 
task force be established to review, revise, finalize, and implement 
changes in code details.
    The EPA believes that both data reporting rules and data reporting 
formats, such as the NIF, are needed for effective data reporting. 
Although this rule and NIF address many common data elements for 
reporting to EPA, their purposes are somewhat different. Data reporting 
rules identify data elements and timelines for reporting. Data 
reporting formats such as the NIF address the details of how the data 
are to be reported to facilitate handling of the data by EPA.
    The EPA does not believe that using a data formatting protocol such 
as the NIF is an effective way to communicate data needs with state 
agencies. The EPA has codified data reporting requirements since states 
need to understand what data will be required and when it will be 
required by EPA to implement programs under the Clean Air Act. The EPA 
continues to believe that data elements for reporting and timelines for 
submitting data are fundamental requirements for states and therefore 
are appropriate levels of detail to be addressed through the rulemaking 
process.
    One commenter suggested that a Federal-state task force be 
established to review, revise, finalize, and implement changes in code 
details. Such a task force has since been established to help with 
developing the new EIS. The EPA expects the task force to update tools 
and guidance materials for data reporting, as well as periodically 
review data elements and reporting codes for use by state agencies.
    Two commenters thought that the addition of a control status code 
would not make the status of a facility any more clear and believed 
that the control status of a facility could be determined from other 
data elements already required for reporting under the CERR and 
proposed under the AERR (e.g., control device codes and control 
efficiency).
    One of the commenters pointed out that EPA's detailed reporting 
instructions provide for the ``control device'' data element to specify

[[Page 76546]]

nonphysical equipment control techniques such as ``low solvent 
coatings,'' ``water-borne coatings,'' ``process change,'' and several 
varieties of combustion modifications.
    The EPA notes that ``control status'' was the only new data element 
in the proposal that was not already in the NIF Version 3.0 and thus 
was perceived as a new data reporting requirement by several 
commenters. This new data element would require states to indicate if a 
source is controlled or uncontrolled. The EPA agrees with the concerns 
expressed by the commenters that this new data element is not needed. 
The data reporting requirements proposed under this action for control 
types and efficiencies in combination with reporting codes for those 
data elements will be sufficient to discern whether or not sources are 
uncontrolled or controlled and to what extent. Therefore, EPA has 
decided to not include Control Status as a new data element in this 
action.
    One commenter stated that the current data fields for point sources 
do not ask for the total capture/control efficiency, which is required 
for nonpoint sources. The commenter thought that the capture efficiency 
along with the total capture/control efficiency should be required for 
point sources since the current requirements for primary and secondary 
control efficiencies do not provide a way to determine the overall 
control efficiency. The EPA believes that the ``total capture and 
control efficiency'' data element proposed for point source reporting 
addresses the commenter's concern since this data element is intended 
to require data reporting on the overall effects of multiple control 
systems.
    One commenter did not believe that ``Rule Effectiveness'' had ever 
been explained adequately and stated that it was not apparent how or if 
it could be used without knowledge of how it relates to the other 
terms. The EPA disagrees with the commenter's concerns. In the spring 
of 2004, EPA convened a workgroup consisting of emission inventory 
staff from state, local, and EPA offices to review existing rule 
effectiveness (RE) guidance and develop a consensus recommendation for 
improvements to this guidance. The revised RE guidance developed by the 
workgroup is found in Appendix B of the document titled Emissions 
Inventory Guidance for Implementation of Ozone and Particulate Matter 
National Ambient Air Quality Standards (NAAQS) and Regional Haze 
Regulations--EPA-454/R-05-001 (August 2005, updated November 2005). The 
EPA believes the workgroup presented a clear rationale regarding 
development and implementation of the new approach to adjusting 
emission inventories to address RE, explaining how RE can be used to 
adjust the control efficiency, from what could be realized under ideal 
conditions to what is actually emitted in practice due to less than 
ideal conditions. Accordingly, EPA has expanded the regulatory 
definition of RE to explain how it is used in making these adjustments.
    Several commenters were generally opposed to any additional 
reporting requirements for states that would be passed on to businesses 
but offered no specific concerns with the individual requirements. The 
reporting requirements of this rule will apply to states and not to 
sources. However, we recognize that in some cases, states will need to 
modify their data reporting rules to meet the requirements of this rule 
for data elements to be reported and the new timelines for reporting. 
The EPA notes that the burden estimate from the proposed rule's 
Supporting Statement for the Information Collection Request (ICR) 
indicates the AERR will not increase the reporting burden on states or 
impose an additional burden on sources.

I. Identification of New Emissions Related Data Requirements

    We invited comment on whether or not additional emissions related 
data should be required. Several commenters encouraged EPA to include 
specific requirements in this rule for reporting hazardous air 
pollutants (HAPs) emissions data for Title V facilities. One commenter 
encouraged EPA to include requirements for reporting HAPs from all 
emission sources.
    The EPA is not including requirements for reporting HAPs in this 
rule. However, EPA has developed national level inventories of HAP 
emissions on a 3-year cycle since 1990. These inventories have provided 
support for development of HAP control programs, helped assess HAP air 
quality trends, and provided a means to track EPA's progress on 
controlling HAP emissions under the Government Performance Results Act. 
The success of EPA's efforts rests in large measure on the cooperation 
of states in submitting HAP data to EPA to support the development of 
national HAP emission inventories. Each emission inventory cycle has 
benefited from increased state agency participation in submitting HAP 
data. The EPA believes it will be possible to continue developing and 
improving national level HAP inventories using the cooperative approach 
employed to date but intends to closely monitor the participation of 
state agencies in this effort. The EPA understands the concerns of some 
state agencies regarding the need for a HAP data reporting rule and 
may, should the need arise, revisit this issue in the future.

J. Revisions to Specific Data Elements

    The NOX SIP Call rule and the CERR contain detailed 
lists of required data elements in addition to emissions, and each rule 
has its own set of definitions. The two sets of data elements overlap 
but are not identical. The NOX SIP Call rule requires a few 
more data elements to be reported and defines some data elements 
differently than the CERR. The EPA reviewed both lists in light of more 
recent reporting experiences and EPA's insight into the difficulty 
states face in collecting and submitting these data elements and their 
utility to EPA, other states, and other users. We proposed to combine 
the separate lists of required elements for the NOX SIP Call 
and the CERR into a single new list in this rule. The EPA proposed that 
the following data elements from the NOX SIP Call be 
eliminated: ``Area Designation'', ``Federal ID code (plant)'', 
``Federal ID code (point)'', ``Federal ID code (process)'', ``Federal 
ID code (stack number)'', ``Maximum design rate'', ``Work weekday 
emissions'', ``Secondary control efficiency'', ``Source of fuel heat 
content data'', ``Source of activity/throughput data'', ``Source of 
emission factor,'' and ``Source of emissions data''. We proposed that 
these relatively minor changes become applicable starting with the 
first required emissions reports following promulgation of this rule.
    There were a number of data elements required in the proposed 
amendments on which we invited comment as to whether they should be 
dropped in the final amendments based upon their current usefulness and 
sufficiency. These were heat content (fuel), ash content (fuel), sulfur 
content (fuel) for fuels other than coal, activity/throughput, hours 
per day in operation, days per week in operation, weeks per year in 
operation, and start time in the day. These data elements were carried 
forward from emissions reporting systems previously used by EPA.
    At present, states are required to report three particular data 
elements for point source stacks: stack diameter, exit gas velocity, 
and exit gas flow rate. The requirement to report all three elements is 
redundant since any one of these can be calculated from the other two. 
We invited comment on which of these data elements, if any, to drop 
from the required list. Our preference was to

[[Page 76547]]

collect the data element that was most closely tied to an actual 
operating measurement. Alternatively, we proposed to allow states to 
report either exit gas flow or exit gas velocity, at their option.
    Finally, we proposed to modify 40 CFR part 51.35 to allow states 
that obtained one-third of their necessary emissions estimates from 
point sources and/or prepared one-third of their nonpoint or mobile 
source emissions estimates each year on a rolling basis, to submit 
their data as a single package on the required every third year 
submission date. The existing requirement allows states to report these 
partial emissions estimates annually as they are completed. Our 
proposal required that states accumulate all 3 years of work and then 
make a single data submission by the due date for the triennial 
emission inventory year. The EPA believes that a single submission 
would allow states to correct and/or update data prior to submitting it 
to EPA thereby facilitating a more consistent data set. A single 
submission would also make it more efficient for EPA to quality assure 
the complete data set rather than doing it on a piecemeal basis. There 
would also be increased efficiencies in resolving any identified 
discrepancies with the states.
    Most commenters agreed with EPA's proposal to combine the separate 
lists of required data elements for the CERR and the NOX SIP 
Call into a single new list of required data elements, thus eliminating 
several requirements from the NOX SIP Call: area 
designation, Federal ID code (plant), Federal ID code (point), Federal 
ID code (process), maximum design rate, work weekday emissions, 
secondary control efficiency, source of fuel heat content data, source 
of activity/throughput data, source of emission factor, and source of 
emissions data. Several commenters suggested that the list of data 
elements be maintained in the NIF rather than in this rule to allow for 
changes in required data elements without the need for rulemaking.
    The EPA agrees with the commenters who expressed support for the 
proposed deletion of some data elements related to the NOX 
SIP Call. The data elements for Federal ID Codes (Plant, Point, 
Process, and Stack Number) were assigned to sources subject to the 
NOX SIP Call and perform similar ID functions to the data 
elements in the proposed rule for Facility ID code, Unit ID code, 
Process ID code, and Stack ID code. The NOX SIP Call ID 
codes are redundant with other ID codes in the proposed rule and will 
be deleted.
    The source of fuel heat content data, source of activity/throughput 
data, source of emission factor and source of emissions data are not 
used by EPA and no commenters addressed the need for these data 
elements specifically. Therefore, EPA will delete these data reporting 
requirements as proposed. The EPA notes that a code for ``emission 
calculation method code'' is planned for the EIS, which is similar in 
application to the ``source of emission factor'' data element. The 
``emission calculation method code'' will allow users to indicate 
calculation methods used for developing emission estimates, including 
emission factors, for all inventory sectors.
    Many commenters indicated that the following data elements proposed 
for deletion were used for a variety of applications and should be 
retained: Heat content (fuel), ash content (fuel), sulfur content 
(fuel) for fuels other than coal, activity/throughput, hours per day in 
operation, days per week in operation, weeks per year in operation and 
start time in the day). One commenter supported deleting only the data 
element for ash content (fuel), while several commenters thought that 
the data element for start time should be deleted. Only one commenter 
thought that all the data elements that had been carried forward from 
earlier systems should be deleted.
    The EPA agrees with the majority of commenters that data elements 
for heat content (fuel), ash content (fuel), sulfur content (fuel) for 
fuels other than coal, activity/throughput, hours per day in operation, 
days per week in operation, weeks per year in operation should be 
retained since these elements are used for a variety of applications. 
Start time in the day (hour) was identified by three commenters as not 
being useful, and EPA agrees that this data element should be deleted.
    Several commenters indicated that any one of the data elements for 
point source stacks could be deleted while others specifically asked 
for deletion of the exit gas velocity data element. One commenter 
indicated their state collected stack diameter and exit gas velocity 
data and thought that both should be retained.
    Many other commenters requested that all three data elements be 
retained for a variety of reasons including providing a means to make 
sure that data were in agreement and to check data entry errors. One 
commenter indicated that his state would continue to meet the needs of 
their end users who are accustomed to having all three data elements 
reported and requested that EPA handle any data reporting changes as 
software modifications until states could extract only the data that 
EPA requests.
    One commenter thought that allowing states the option of selecting 
which two stack parameters to report among flow rate, velocity and 
diameter would require having all three available for use and suggested 
that no changes be made to the existing reporting format.
    Although the stack diameter can be calculated by dividing the gas 
flow rate by the gas velocity, no commenters suggested deleting the 
stack diameter from the list of data elements. The EPA believes it is 
appropriate to report stack diameter data since it can be readily 
determined and has the least amount of uncertainty of the stack-related 
data elements. One commenter who indicated that all existing stack-
related data elements would need to be reported if states had the 
flexibility of selecting two out of the three for reporting appeared to 
interpret EPA's proposal in the broadest sense. It was EPA's intent to 
select stack-related data elements based upon state preferences and 
apply those requirements universally to all point sources.
    The EPA believes that given the variety of practices among state 
agencies evidenced in the comments, flexibility in reporting should be 
included in this rule for stack-related data elements. Therefore, this 
rule will offer states three reporting options: (1) Report all three 
data elements, (2) report only stack diameter and exit gas flow rate, 
or (3) report only stack diameter and exit gas velocity.
    Section 51.35 of the CERR allows states the option of obtaining 
estimates from point sources and/or preparing one-third of their 
nonpoint or mobile source emissions estimates each year on a rolling 
basis and submitting data annually as they are completed. The EPA 
proposed to allow states to continue the option of obtaining estimates 
from point sources and/or prepare one-third of their nonpoint or mobile 
source emissions estimates each year on a rolling basis, but would have 
limited data submissions to a single package on the required third year 
submission date.
    One commenter expressed support for the proposed requirement that 
states submit their data as a single package for triennial inventories 
since his state followed this practice. Another commenter said his 
state agency had always developed a single year's inventory and 
submitted it as a single package. This commenter preferred to continue 
this practice. One commenter thought that allowing states to develop 
triennial inventories over 3 years was

[[Page 76548]]

not practical due to staff turnover and EPA's changing requirements. 
The commenter went on to suggest that a 5-year rolling basis be used to 
be consistent with the cycle his state uses for smaller sources.
    Aside from the comment noted above, this proposal did not generate 
much interest. The few comments received suggest that the existing 
provision under Section 51.35 of the CERR, which allows triennial 
emission inventory development over a three-year period, is impractical 
and is not utilized by the states. However, all commenters were 
supportive of the change to require one submission for triennial 
inventories. The EPA agrees with the commenters that the change to 
require one submission under section 51.35 is appropriate and is 
modifying this provision as proposed. The EPA notes that states may use 
the provisions of 40 CFR 51.35 to equalize workloads but are not 
required to do so.
    The CERR included a data element for reporting of SIC/NAICS codes 
for point sources but did not specify whether the codes should also be 
reported at the emission unit level, in addition to the facility level. 
Table 2A to subpart A of part 51 in the AERR proposal clarified this 
requirement by including data element 41 for reporting of 
``SIC/NAICS at the facility and unit levels.''
    One commenter thought that reporting these codes at the unit level 
is not necessary for emission inventory purposes. Guidance from the 
Census Bureau, which develops the SIC/NAICS codes, indicates that they 
are designed to reflect the primary economic activity of a source, 
which also brings into question the reporting of these codes at the 
unit level. Based upon this information, EPA has reconsidered the need 
for reporting these codes at the unit level and revised data element 
41 to require the reporting of ``SIC/NAICS at the facility 
level.'' One additional revision concerns the reporting of SIC codes as 
an alternative to NAICS codes. Since the January 3, 2006, proposal, 
users of SIC codes have transitioned to the new NAICS codes, and EPA 
finds that retaining the reference to ``SIC'' as a reporting 
alternative is no longer necessary. Therefore, data element 41 
has been revised to require the reporting of ``NAICS at the facility 
level'' and the definition for ``SIC/NAICS'' has been revised to 
address only NAICS codes.

IV. This Action

    Today's action further consolidates the detailed requirements for 
emissions reporting by states entirely into 40 CFR part 51 subpart A. 
This final rule also harmonizes the reporting requirements from several 
CAA rules and reduces and simplifies them in several ways. The major 
changes included in this final rule are described below.

A. Consolidation of Reporting Requirements

    The EPA hereby amends subpart A, which contains 40 CFR 51.1 through 
51.45, with conforming amendments to 40 CFR 51.122. These amendments 
also add 40 CFR 51.50 and new tables to subpart A of part 51.
    In 40 CFR 51.122, we are abolishing some requirements entirely and 
replacing other requirements with a cross reference to subpart A, thus 
allowing detailed lists of required data elements to appear only in 
subpart A. As amended, 40 CFR 51.122 will continue to specify what 
pollutants, sources, and time periods the states subject to the 
NOX SIP Call must report and when, but will no longer list 
the detailed data elements required for those reports. The amended 
subpart A will list the detailed data elements as well as provide 
information on submittal procedures, definitions, and other generally 
applicable provisions.

B. Point Source Reporting

    In all states, we are expanding the definition of what sources must 
be reported in point source format, so that fewer sources will be 
included in nonpoint source emissions. We are basing the requirement 
for point source format reporting on whether the source is a major 
source under 40 CFR part 70 for the pollutants for which reporting is 
required, i.e., for CO, VOC, NOX, SO2, 
PM2.5, PM10, lead and NH3 but without 
regard to emissions of HAPs. Currently, the requirement for point 
source reporting is based on thresholds of actual emissions during the 
inventory year. While it has always been an option for states to 
include all such sources, and we know that some states already do, 
expanding the point source definition may require more sources to be 
reported as point sources every third year. In addition, some sources 
now reported as ``Type B'' point sources every third year may be 
reported as ``Type A'' point sources each year. Affected states will 
continue to report their actual emissions, but the new approach will 
make it possible to better track changes in source emissions, 
shutdowns, and start-ups over time. Because states have an existing 
list of sources based on 40 CFR part 70 requirements, this approach 
will result in a more stable universe of reporting point sources, which 
in turn will facilitate elimination of overlaps and gaps in estimating 
point source emissions, as compared to nonpoint source emissions. Under 
this requirement, states will know well in advance of the start of the 
inventory year which sources will need to be reported. These new 
requirements will be in effect for all reports for emissions starting 
with the 2009 inventory year.

C. Report Due Dates

    New due dates under the AERR will begin with the 2009 inventory 
year. For the 2008 inventory year, data submittals under the CERR will 
continue to be due within 17 months of the end of the inventory year 
(May 31, 2010). The NOX SIP Call data submittal for the 2008 
inventory year will be due within 12 months of the end of the inventory 
year (December 31, 2009).
    The EPA is harmonizing reporting dates for the NOX SIP 
Call and the AERR beginning with the 2009 inventory year. The data 
submittals for both will be due by December 31, 2010. All subsequent 
data submittals under the AERR and NOX SIP Call will be due 
within 12 months of the end of the inventory year.

D. Reporting Biogenic Emissions

    The requirement for reporting annual and typical ozone season day 
biogenic emissions has been removed.

E. Reporting Emission Model Inputs

    States will have the option of providing emissions model inputs to 
EPA in lieu of emissions estimates developed from those inputs. This 
option is available only for source categories where EPA develops or 
adopts suitable emission inventory estimation models and through 
guidance, defines their necessary inputs prior to the reporting due 
date. It is further restricted to emission models capable of estimating 
emissions from source types on a national scale. Under this option, EPA 
will run the emissions model(s) to calculate emissions and will enter 
the emissions data into the appropriate database. The EPA is making 
this option available for the 2007 inventory year (due date May 31, 
2009).

F. Reporting Summer Day Emissions

    States will report summer day emissions of VOC and NOX 
from point, nonpoint and nonroad mobile, and onroad mobile sources at 
3-year intervals for ozone nonattainment areas and for sources in 
attainment counties that are covered by the nonattainment area modeling 
domain used to demonstrate RFP. States covered by the NOX 
SIP Call will report on an annual basis summer day emissions of 
NOX

[[Page 76549]]

from any point source for which the state specified control measures in 
its SIP, and on a triennial basis summer day emissions for all point, 
nonpoint and nonroad mobile and onroad mobile sources.

G. Reporting Winter Work Weekday Emissions

    The requirement for states to report winter work weekday emissions 
of CO is limited to areas with CO maintenance plans and CO 
nonattainment areas.

H. New Data Elements

    New data elements for contact name, contact phone number, emission 
type, emission release point type, and MAD codes are now required for 
reporting point source emissions. New data elements for contact name 
and contact phone number are now required for reporting nonpoint, 
nonroad mobile and onroad mobile source emissions.

I. Identification of New Emissions Related Data Requirements

    There are no new emissions related data requirements other than 
those discussed in Section IV.H. above that will be required for 
reporting point, nonpoint, or nonroad and onroad mobile sources.

J. Revisions to Specific Data Elements

    States will no longer be required to report the following data 
elements listed under the NOX SIP Call (40 CFR 51.122): Area 
Designation, Federal ID Code (plant), Federal ID Code (point), Federal 
ID Code (process), Federal ID Code (stack number), Maximum design rate, 
Work weekday emissions, Secondary control efficiency, Source of fuel 
heat content data, Source of activity/throughput data, Source of 
emissions factor and Source of emissions data. States will report their 
ID codes for facility, unit, process and stack. The EPA will assign EIS 
Identifier codes to state data once the data are added to the NEI.
    For point source emissions, states will no longer be required to 
report start time in the day and will have the option of reporting one 
of the following combinations: (1) Stack height, exit gas velocity and 
exit gas flow rate; (2) Stack height and exit gas velocity; or (3) 
Stack height and exit gas flow rate.

K. EPA Initiated Changes

1. Implementation of Data Reporting Under the AERR
    In the preamble to the proposed rule we said ``The EPA intends to 
issue final amendments during 2006.'' We intended to have the final 
rule in place with sufficient lead time for state agencies to modify 
their data collection rules and data systems as necessary to meet the 
new reporting requirements. Promulgation of this action is expected to 
occur during 2008 which was the initial year of data reporting proposed 
under the AERR. The EPA recognizes that the reduced lead time may 
present difficulties for some states to fully comply with the 
requirements of this rule and is delaying full implementation of the 
AERR until the 2009 inventory year. A provision to allow states to 
submit emission model inputs in lieu of emission estimates will be 
effective starting with the 2007 inventory year because it provides 
additional flexibility to the states. EPA notes that the 17-month 
timeline for submittal of data under the CERR is unchanged in this rule 
for the 2008 inventory year, which should aid in transitioning to the 
new reporting requirements.
2. Early Data Submittal Program
    The EPA proposed a 12-month timeline for reporting 2008 point 
source emission inventory data and 17 months for nonpoint and mobile 
source emission inventory data. The EPA further proposed that this 
schedule would be shortened to 6 months for point sources and 12 months 
for nonpoint and mobile source sectors starting with the 2011 inventory 
year. Commenters believed these proposed timelines were too ambitious, 
and this action delays implementation of the new reporting timeline 
until the 2009 inventory year. The existing 17-month timeline from the 
CERR for reporting of all emission inventory sectors will be in effect 
through the 2008 inventory year. The reporting timeline for the 2009 
inventory year and subsequent inventory years will be shortened to 12 
months for all emission inventory sectors.
    The EPA believes it may be possible for some states to achieve data 
submittal timelines that are shorter than 17 months for the 2008 
inventory year and is interested in providing a mechanism for early 
data submittal from such states. The EPA is considering development of 
a voluntary program that will provide several alternatives for states. 
The details of this program will be communicated by EPA to states 
through discussions with the National Association of Clean Air Agencies 
(NACAA), messages to the CHIEF and NEI listservs, and postings on the 
CHIEF Web site.
3. Data Element for Inventory Type
    The data element for Inventory Type describes the type of data 
submitted and its application. The EPA believes this data element is 
not necessary and has deleted it from Tables 2A, 2B and 2C for 
reporting emissions from point sources; nonpoint sources and nonroad 
mobile sources; and onroad mobile sources. The EPA is taking this 
action for the following reasons: (1) Several of the emission inventory 
applications described by the codes are not expected to be submitted to 
EPA under this rule, (2) data submittals described by this data element 
such as ``HAP inventory'' are no longer appropriate given the 
integrated nature of emission inventory development, and (3) data 
submitters can better describe data being submitted using a comment 
field which is provided in the Transmittal Record under the NIF and XML 
schemas for data formatting.
4. Data Element for ``SCC or PCC''
    The EPA is modifying data element 14 in Table 2A to 
subpart A of part 51 by eliminating the reference to PCC. The PCC 
(Process Classification Code) reference was included in the proposed 
rule to provide data reporting flexibility in the event that PCCs were 
developed as replacement codes for SCCs. The reference has been removed 
from this final rule because EPA has no plans for further development 
of PCCs at this time.
5. Source Reporting Formats
    Section 51.20 (What are the emission thresholds that separate point 
and nonpoint sources?) requires that state inventories include all 
anthropogenic stationary sources as either point or nonpoint 
sources.\7\ As proposed, this section would have specifically required 
states under Sec.  51.20(d) to submit emission data on wildfires and 
prescribed fires using the nonpoint source format. Section 51.20(d) 
also required all sources not subject to the point source reporting 
thresholds be submitted using the nonpoint source reporting format. 
However, in consideration of the time and effort already expended to 
develop mechanisms for reporting such emissions as point sources, we 
have revised the language under Sec.  51.20(d) to remove the 
requirement for reporting of wildfires and prescribed fires using the 
nonpoint reporting format and further revised the language to allow 
states the flexibility of reporting such emissions as either point or 
nonpoint sources, by providing a mechanism for states to use the point 
source reporting format for

[[Page 76550]]

sources that are below the point source reporting thresholds referenced 
in Sections 51.20(c) and (d).\8\
---------------------------------------------------------------------------

    \7\ Examples of anthropogenic sources include, but are not 
limited to, (1) agricultural fires such as burning of orchard and 
field crops and (2) some emissions from livestock operations and 
fertilizer application.
    \8\ EPA is developing a Fire Policy with the Department of 
Agriculture that will clarify terminology used in this notice 
regarding wildland and agricultural fires. Once that policy is 
finalized, EPA intends to update reporting codes to facilitate State 
reporting of emissions in accordance with the final policy.
---------------------------------------------------------------------------

V. Statutory and Executive Order Reviews

A. Executive Order 12866: Regulatory Planning and Review

    Under Executive Order (EO) 12866 (58 FR 51735, October 4, 1993), 
this action is a ``significant regulatory action'' because it raises 
novel legal or policy issues. Accordingly, EPA submitted this action to 
the Office of Management and Budget (OMB) for review under EO 12866 and 
any changes made in response to OMB recommendations have been 
documented in the docket for this action.
    In addition, EPA prepared an analysis of the potential costs and 
benefits associated with this action. This analysis is contained in 
``Supporting Statement, Air Emissions Reporting Requirements (AERR), 
EPA ICR 2170.02.'' A copy of the analysis is available in the 
docket for this action and the analysis is briefly summarized here.
    This final rule will add new reporting requirements and will 
combine these new requirements with existing requirements from the 
CERR, NOX SIP Call, and the Acid Rain Program. Each of these 
three existing rules has an approved ICR. The current ICRs are: ICR No. 
0916.10 for the CERR; ICR No. 1857 for the NOX SIP Call; and 
ICR No. 1633.13 for the Acid Rain Program.
    The EPA estimates that this final rule will reduce the information 
collection burden for each of the 104 respondents (state and local 
agencies) by about 13 labor hours per year from current levels. The 
annual average reporting burden for this collection (averaged over the 
first 3 years of this ICR) is estimated to decrease by a total of 1,373 
labor hours per year with a decrease in costs of $47,450. From the 
perspective of the sources reporting to the states, EPA does not 
believe that there will be any change in reporting burden resulting 
from AERR because the same universe of sources will be required to 
report to the states.

B. Paperwork Reduction Act

    The information collection requirements in this rule have been 
submitted for approval to the Office of Management and Budget (OMB) 
under the Paperwork Reduction Act, 44 U.S.C. 3501 et seq. The 
information collection requirements are not enforceable until OMB 
approves them.
    The information collection requirements in this rule are based on 
the existing Emission Inventory Reporting Requirements in 40 CFR part 
51, subparts A and G. In general, these provisions require each state 
to compile a statewide inventory of emissions of certain criteria 
pollutants at least every 3 years for all point, nonpoint, and mobile 
sources. The information collection requirements for the existing 
inventory reporting requirements have been approved by OMB under 
control number 2060-0088.
    The information collection requirements in this final rule are 
mandatory for all states and territories (excluding Tribal governments 
without TAS status to implement and enforce the AERR rule). These 
requirements are authorized by section 110(a) of the CAA. The reported 
emissions data are used by EPA to develop and evaluate state, regional, 
and national control strategies; to assess and analyze trends in 
criteria pollutant emissions; to identify emission and control 
technology research priorities; and to assess the impact of new or 
modified sources within a geographic area. The emission inventory data 
are also used by states to develop, evaluate, and revise their SIP.
    This final rule will add new reporting requirements and will 
combine these new requirements with existing requirements from the 
CERR, NOX SIP Call, and the Acid Rain Program. Each of these 
three existing rules has an approved ICR. The current ICRs are approved 
under OMB Control Numbers 2060-0088 (CERR), 2060-0445 (NOX 
SIP Call), and 2060-0258 (Acid Rain Program).
    The EPA estimates that this final rule will reduce the information 
collection burden for each of the 104 respondents by about 13 labor 
hours per year from current levels. The annual average reporting burden 
for this collection (averaged over the first 3 years of this ICR) is 
estimated to decrease by a total of 1,373 labor hours per year with a 
decrease in costs of $47,450. From the perspective of the sources 
reporting to the states, EPA does not believe that there will be any 
change in reporting burden resulting from AERR because the same 
universe of sources will be required to report to the states. No 
capital/startup costs or operation and maintenance costs for monitoring 
equipment are attributable to the proposed amendments. The only costs 
associated with this final rule are labor hours associated with 
collection, management, and reporting of data. The EPA does not 
consider the data submitted under this rule to be confidential, but 
some states limit release of this type of data. Any data submitted 
under this rule will be considered in the public domain and cannot be 
treated as confidential. Burden is defined at 5 CFR 1320.3(b).
    An agency may not conduct or sponsor, and a person is not required 
to respond to a collection of information, unless it displays a 
currently valid OMB control number. The OMB control numbers for EPA's 
regulations in 40 CFR part 51 are listed in 40 CFR part 9. When this 
ICR is approved by OMB, the Agency will publish a technical amendment 
to 40 CFR part 9 in the Federal Register to display the OMB control 
number for the approved information collection requirements contained 
in this final rule.

C. Regulatory Flexibility Act

    The Regulatory Flexibility Act (RFA) generally requires an agency 
to prepare a regulatory flexibility analysis of any rule subject to 
notice and comment rulemaking requirements under the Administrative 
Procedure Act or any other statute unless the agency certifies that the 
rule will not have a significant economic impact on a substantial 
number of small entities. Small entities include small businesses, 
small organizations, and small governmental jurisdictions.
    For purposes of assessing the impacts of this rule on small 
entities, small entity is defined as: (1) A small business as defined 
by the Small Business Administration regulations at 13 CFR 121.201; (2) 
a small government jurisdiction that is a government of a city, county, 
town, school district or special district with a population of less 
than 50,000; and (3) a small organization that is any not-for-profit 
enterprise that is independently owned and operated and that is not 
dominant in its field.
    After considering the economic impacts of this final rule on small 
entities, I certify that this action will not have a significant 
economic impact on a substantial number of small entities. This final 
rule will not impose any requirements on small entities. This action 
primarily impacts state and local agencies, and will provide these 
agencies with additional flexibility in how they collect and report 
emissions data.

D. Unfunded Mandates Reform Act

    This rule does not contain a Federal mandate that may result in 
expenditures

[[Page 76551]]

of $100 million or more for state, local, and tribal governments, in 
the aggregate, or the private sector in any one year. EPA has 
determined that this rule does not contain a Federal mandate that may 
result in expenditures of $100 million or more for state, local, and 
tribal governments, in the aggregate, or the private sector in any one 
year. No significant costs are attributable to this final rule; in 
fact, this rule is estimated to decrease costs associated with 
emissions inventory reporting. Thus, this rule is not subject to the 
requirements of sections 202 or 205 of UMRA.
    This rule is also not subject to the requirements of section 203 of 
UMRA because it contains no regulatory requirements that might 
significantly or uniquely affect small governments. The rule does not 
significantly or uniquely affect small governments because it contains 
no requirements that apply to such governments or impose obligations 
upon them.

E. Executive Order 13132: Federalism

    Executive Order 13132 entitled ``Federalism'' (64 FR 43255, August 
10, 1999), requires EPA to develop an accountable process to ensure 
``meaningful and timely input by state and local officials in the 
development of regulatory policies that have federalism implications.'' 
``Policies that have federalism implications'' is defined in the 
Executive Order to include regulations that 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.''
    This final rule 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, 
as specified in Executive Order 13132. This rule will provide states 
with additional flexibility in how they collect and report emissions 
data. Thus, Executive Order 13132 does not apply to this rule.

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

    This action does not have tribal implications, as specified in 
Executive Order 13175 (65 FR 67249, November 9, 2000). It will not have 
substantial direct effects on Tribal governments, on the relationship 
between the Federal government and Indian Tribes, or on the 
distribution of power and responsibilities between the Federal 
government and Indian Tribes, as specified in Executive Order 13175. 
The Tribal Authority Rule means that tribes cannot be required to 
report their emissions to us, unless they have attained TAS status 
under the Tribal Authority Rule and, on that basis, are authorized to 
implement and enforce this rule. Thus, Executive Order 13175 does not 
apply to this action.

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

    Executive Order 13045: ``Protection of Children from Environmental 
Health Risks and Safety Risks'' (62 FR 19885, April 23, 1997) applies 
to any rule that: (1) is determined to be ``economically significant'' 
as defined under Executive Order 12866, and (2) concerns an 
environmental health or safety risk that EPA has reason to believe may 
have a disproportionate effect on children. If the regulatory action 
meets both criteria, the Agency must evaluate the environmental health 
or safety effects of the planned rule on children, and explain why the 
planned regulation is preferable to other potentially effective and 
reasonably feasible alternatives considered by the Agency.
    EPA interprets Executive Order 13045 as applying only to those 
regulatory actions that are based on health or safety risks, such that 
the analysis required under section 5-501 of the Order has the 
potential to influence the regulation. This rule is not subject to 
Executive Order 13045 because it does not establish an environmental 
standard intended to mitigate health or safety risks.

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

    This action is not a ``significant energy action'' as defined in 
Executive Order 13211 (66 FR 28355 (May 22, 2001)), because it is not 
likely to have a significant adverse effect on the supply, 
distribution, or use of energy. This rule will consolidate, reduce, and 
simplify existing emissions data reporting requirements; add limited 
new requirements; provide additional flexibility to States in the ways 
they collect and report emissions data; and accelerate the reporting of 
emissions data to EPA. Data reporting will be conducted electronically 
and is not likely to have a significant adverse effect on the supply, 
distribution, or use of energy. Further, we have concluded that this 
rule is not likely to have any adverse energy impacts.

I. National Technology Transfer Advancement Act

    As noted in the proposed rule, Section 12(d) of the National 
Technology Transfer Advancement Act of 1995 (``NTTAA'') (Public Law No. 
104-113, 12(d) (15 U.S.C. 272 note) directs EPA to use voluntary 
consensus standards in its regulatory activities unless to do so would 
be inconsistent with applicable law or otherwise impractical. Voluntary 
consensus standards are technical standards (e.g., materials 
specifications, test methods, sampling procedures, and business 
practices) that are developed or adopted by voluntary consensus 
standards bodies. The NTTAA directs EPA to provide Congress, through 
OMB, explanations when the Agency decides not to use available and 
applicable voluntary consensus standards.
    This action does not involve technical standards. Therefore, EPA 
did not consider the use of any voluntary consensus standards.

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

    Executive Order (E.O.) 12898 (59 FR 7629 (Feb. 16, 1994)) 
establishes federal executive policy on environmental justice. Its main 
provision directs federal agencies, to the greatest extent practicable 
and permitted by law, to make environmental justice part of their 
mission by identifying and addressing, as appropriate, 
disproportionately high and adverse human health or environmental 
effects of their programs, policies, and activities on minority 
populations and low-income populations in the United States.
    EPA has determined that this final rule will not have 
disproportionately high and adverse human health or environmental 
effects on minority or low-income populations because it does not 
affect the level of protection provided to human health or the 
environment. This rule establishes information reporting procedures for 
emissions of criteria air pollutants from stationary and mobile source 
but does not affect the quantities of the pollutants emitted.

K. Congressional Review Act

    The Congressional Review Act, 5 U.S.C. 801 et seq., as added by the 
Small Business Regulatory Enforcement Fairness Act of 1996, generally 
provides that before a rule may take effect, the agency promulgating 
the rule must submit a rule report, which includes a copy of the rule, 
to each House of the

[[Page 76552]]

Congress and to the Comptroller General of the United States. The EPA 
will submit a report containing this rule and other required 
information to the U.S. Senate, the U.S. House of Representatives, and 
the Comptroller General of the United States prior to publication of 
the rule in the Federal Register. A major rule cannot take effect until 
60 days after it is published in the Federal Register. This action is 
not a ``major rule'' as defined by 5 U.S.C. 804(2). This rule will be 
effective December 17, 2008.

List of Subjects in 40 CFR Part 51

    Environmental protection, Administrative practice and procedure, 
Air pollution control, Intergovernmental relations, Nitrogen oxides, 
Ozone, Particulate matter, Regional haze, Reporting and recordkeeping 
requirements, Sulfur dioxide.

    Dated: December 4, 2008.
Stephen L. Johnson,
Administrator.

0
For the reasons stated in the preamble, title 40, chapter I, part 51 of 
the Code of Federal Regulations is amended as follows:

PART 51--[AMENDED]

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.

Subpart A--[Amended]

0
2. Subpart A is revised to read as follows:

Subpart A--Air Emissions Reporting Requirements

Sec.

General Information For Inventory Preparers

51.1 Who is responsible for actions described in this subpart?
51.5 What tools are available to help prepare and report emissions 
data?
51.10 How does my state report emissions that are required by the 
NOX SIP Call?

Specific Reporting Requirements

51.15 What data does my state need to report to EPA?
51.20 What are the emission thresholds that separate point and 
nonpoint sources?
51.25 What geographic area must my state's inventory cover?
51.30 When does my state report which emissions data to EPA?
51.35 How can my state equalize the emission inventory effort from 
year to year?
51.40 In what form and format should my state report the data to 
EPA?
51.45 Where should my state report the data?
51.50 What definitions apply to this subpart?

Appendix A to Subpart A of Part 51--Tables

Appendix B to Subpart A of Part 51--[Reserved]

Subpart A--Air Emissions Reporting Requirements

General Information for Inventory Preparers


Sec.  51.1  Who is responsible for actions described in this subpart?

    States must inventory emission sources located on nontribal lands 
and report this information to EPA.


Sec.  51.5  What tools are available to help prepare and report 
emissions data?

    (a) We urge your state to use estimation procedures described in 
documents from the Emission Inventory Improvement Program (EIIP), 
available at the following Internet address: http://www.epa.gov/ttn/
chief/eiip. These procedures are standardized and ranked according to 
relative uncertainty for each emission estimating technique. Using this 
guidance will enable others to use your state's data and evaluate its 
quality and consistency with other data.
    (b) Where current EIIP guidance materials have been supplanted by 
state-of-the-art emission estimation approaches or are not applicable 
to sources or source categories, states are urged to use applicable, 
state-of-the-art techniques for estimating emissions.


Sec.  51.10  How does my state report emissions that are required by 
the NOX SIP Call?

    The District of Columbia and states that are subject to the 
NOX SIP Call Sec.  51.121) are subject to the emissions 
reporting provisions of Sec.  51.122. This subpart A incorporates the 
pollutants, source, time periods, and required data elements for these 
reporting requirements.

Specific Reporting Requirements


Sec.  51.15  What data does my state need to report to EPA?

    (a) Pollutants. Report actual emissions of the following (see Sec.  
51.50 for precise definitions as required):
    (1) Required pollutants for triennial reports of annual (12-month) 
emissions for all sources and every-year reports of annual emissions 
from Type A sources:
    (i) Sulfur dioxide (SO2).
    (ii) Volatile organic compounds (VOC).
    (iii) Nitrogen oxides (NOX).
    (iv) Carbon monoxide (CO).
    (v) Lead and lead compounds.
    (vi) Primary PM2.5 . As applicable, also report 
filterable and condensable components.
    (vii) Primary PM10 . As applicable, also report 
filterable and condensable components.
    (viii) Ammonia (NH3 ).
    (2) Required pollutants for all reports of ozone season (5 months) 
emissions: NOX.
    (3) Required pollutants for triennial reports of summer day 
emissions:
    (i) NOX.
    (ii) VOC.
    (4) Required pollutants for every-year reports of summer day 
emissions: NOX.
    (5) A state may, at its option, include estimates of emissions for 
additional pollutants (such as other pollutants listed in paragraph 
(a)(1) of this section or hazardous air pollutants) in its emission 
inventory reports.
    (b) Sources. Emissions should be reported from the following 
sources in all parts of the state, excluding sources located on tribal 
lands:
    (1) Point.
    (2) Nonpoint.
    (3) Onroad mobile.
    (4) Nonroad mobile.
    (c) Supporting Information. You must report the data elements in 
Tables 2a through 2c in Appendix A of this subpart. We may ask you for 
other data on a voluntary basis to meet special purposes.
    (d) Confidential Data. We do not consider the data in Tables 2a 
through 2c in Appendix A of this subpart confidential, but some states 
limit release of this type of data. Any data that you submit to EPA 
under this subpart will be considered in the public domain and cannot 
be treated as confidential. If Federal and state requirements are 
inconsistent, consult your EPA Regional Office for a final 
reconciliation.
    (e) Option to Submit Inputs to Emission Inventory Estimation Models 
in Lieu of Emission Estimates. For a given inventory year, EPA may 
allow states to submit comprehensive input values for models capable of 
estimating emissions from a certain source type on a national scale, in 
lieu of submitting the emission estimates otherwise required by this 
subpart.


Sec.  51.20  What are the emission thresholds that separate point and 
nonpoint sources?

    (a) All anthropogenic stationary sources must be included in your 
inventory as either point or nonpoint sources.
    (b) Sources that meet the definition of point source in this 
subpart must be reported as point sources. All pollutants specified in 
Sec.  51.15(a) must be reported

[[Page 76553]]

for point sources, not just the pollutant(s) that qualify the source as 
a point source. The reporting of wildland and agricultural fires is 
encouraged but not required.
    (c) If your state has lower emission reporting thresholds for point 
sources than paragraph (b) of this section, then you may use these in 
reporting your emissions to EPA.
    (d) All stationary sources that are not reported as point sources 
must be reported as nonpoint sources. Episodic wind-generated 
particulate matter (PM) emissions from sources that are not major 
sources may be excluded, for example dust lifted by high winds from 
natural or tilled soil. In addition, if not reported as point sources, 
wildland and agricultural fires must be reported as nonpoint sources. 
Emissions of nonpoint sources may be aggregated to the county level, 
but must be separated and identified by source classification code 
(SCC). Nonpoint source categories or emission events reasonably 
estimated by the state to represent a de minimis percentage of total 
county and state emissions of a given pollutant may be omitted.


Sec.  51.25  What geographic area must my state's inventory cover?

    Because of the regional nature of these pollutants, your state's 
inventory must be statewide, regardless of any area's attainment 
status.


Sec.  51.30  When does my state report which emissions data to EPA?

    All states are required to report two basic types of emission 
inventories to EPA: Every-year Cycle Inventory; and Three-year Cycle 
Inventory. The sources and pollutants to be reported vary among states.
    (a) Every-year cycle. See Tables 2a, 2b, and 2c of Appendix A of 
this subpart for the specific data elements to report every year.
    (1) All states are required to report every year the annual (12-
month) emissions of all pollutants listed in Sec.  51.15(a)(1) from 
Type A (large) point sources, as defined in Table 1 of Appendix A of 
this subpart. The first every-year cycle inventory will be for the 2009 
inventory year and must be submitted to EPA within 12 months, i.e., by 
December 31, 2010.
    (2) States subject to the emission reporting requirements of Sec.  
51.122 (the NOX SIP Call) are required to report every year 
the ozone season emissions of NOX and summer day emissions 
of NOX from any point, nonpoint, onroad mobile, or nonroad 
mobile source for which the state specified control measures in its SIP 
submission under Sec.  51.121(g). This requirement begins with the 
inventory year prior to the year in which compliance with the 
NOX SIP Call requirements is first required.
    (3) In inventory years that fall under the 3-year cycle 
requirements, the reporting required by the 3-year cycle satisfies the 
every-year reporting requirements of paragraph (a).
    (b) Three-year cycle. See Tables 2a, 2b and 2c to Appendix A of 
subpart A for the specific data elements that must be reported 
triennially.
    (1) All states are required to report for every third inventory 
year the annual (12-month) emissions of all pollutants listed in Sec.  
51.15(a)(1) from all point sources, nonpoint sources, onroad mobile 
sources, and nonroad mobile sources. The first 3-year cycle inventory 
will be for the 2011 inventory and must be submitted to us within 12 
months, i.e., by December 31, 2012. Subsequent 3-year cycle (2011, 
2014, etc.) inventories will be due 12 months after the end of the 
inventory year, i.e., by December 31 of the following year.
    (2) States subject to Sec.  51.122 must report ozone season 
emissions and summer day emissions of NOX from all point 
sources, nonpoint sources, onroad mobile sources, and nonroad mobile 
sources. The first 3-year cycle inventory will be for the 2008 
inventory year and must be submitted to EPA within 12 months, i.e., by 
December 31, 2009. Subsequent 3-year cycle inventories will be due as 
specified under paragraph (b)(1) of this section.
    (3) Any state with an area for which EPA has made an 8-hour ozone 
nonattainment designation finding (regardless of whether that finding 
has reached its effective date) must report summer day emissions of VOC 
and NOX from all point sources, nonpoint sources, onroad 
mobile sources, and nonroad mobile sources. Summer day emissions of 
NOX and VOC for sources in attainment counties that are 
covered by the nonattainment area modeling domain used to demonstrate 
reasonable further progress (RFP) must be included. The first 3-year 
cycle inventory will be for the 2011 inventory year and must be 
submitted to EPA within 12 months, i.e., by December 31, 2012. 
Subsequent three-year cycle inventories will be due as specified under 
paragraph (b)(1) of this section.
    (4) States with CO nonattainment areas and states with CO 
attainment areas subject to maintenance plans must report winter work 
weekday emissions of CO with their 3-year cycle inventories.


Sec.  51.35  How can my state equalize the emission inventory effort 
from year to year?

    (a) Compiling a 3-year cycle inventory means more effort every 3 
years. As an option, your state may ease this workload spike by using 
the following approach:
    (1) Each year, collect and report data for all Type A (large) point 
sources (this is required for all Type A point sources).
    (2) Each year, collect data for one-third of your sources that are 
not Type A point sources. Collect data for a different third of these 
sources each year so that data has been collected for all of the 
sources that are not Type A point sources by the end of each 3-year 
cycle. You must save 3 years of data and then report all emissions from 
the sources that are not Type A point sources on the 3-year cycle due 
date.
    (3) Each year, collect data for one-third of the nonpoint, nonroad 
mobile, and onroad mobile sources. You must save 3 years of data for 
each such source and then report all of these data on the 3-year cycle 
due date.
    (b) For the sources described in paragraph (a) of this section, 
your state will have data from 3 successive years at any given time, 
rather than from the single year in which it is compiled.
    (c) If your state chooses the method of inventorying one-third of 
your sources that are not Type A point sources and 3-year cycle 
nonpoint, nonroad mobile, and onroad mobile sources each year, your 
state must compile each year of the 3-year period identically. For 
example, if a process has not changed for a source category or 
individual plant, your state must use the same emission factors to 
calculate emissions for each year of the 3-year period. If your state 
has revised emission factors during the 3 years for a process that has 
not changed, you must resubmit previous years' data using the revised 
factor. If your state uses models to estimate emissions, you must make 
sure that the model is the same for all 3 years.
    (d) If your state needs a new reference year emission inventory for 
a selected pollutant, your state cannot use these optional reporting 
frequencies for the new reference year.
    (e) If your state is a NOX SIP Call state, you cannot 
use these optional reporting frequencies for NOX SIP Call 
reporting.


Sec.  51.40  In what form and format should my state report the data to 
EPA?

    (a) You must report your emission inventory data to us in 
electronic form.
    (b) We support specific electronic data reporting formats, and you 
are required to report your data in a format consistent with these. The 
term format

[[Page 76554]]

encompasses the definition of one or more specific data fields for each 
of the data elements listed in Tables 2a, 2b, and 2c in Appendix A of 
this subpart; allowed code values for categorical data fields; 
transmittal information; and data table relational structure. Because 
electronic reporting technology changes continually, contact the EPA 
Emission Inventory and Analysis Group (EIAG) for the latest specific 
formats. You can find information on the current formats at the 
following Internet address: http://www.epa.gov/ttn/chief/nif/
index.html. You may also call the air emissions contact in your EPA 
Regional Office or our Info CHIEF help desk at (919) 541-1000 or send 
e-mail to info.chief@epa.gov.


Sec.  51.45  Where should my state report the data?

    (a) Your state submits or reports data by providing it directly to 
EPA.
    (b) The latest information on data reporting procedures is 
available at the following Internet address: http://www.epa.gov/ttn/
chief. You may also call our Info CHIEF help desk at (919) 541-1000 or 
e-mail to info.chief@epa.gov.


Sec.  51.50  What definitions apply to this subpart?

    Activity throughput means a measurable factor or parameter that 
relates directly or indirectly to the emissions of an air pollution 
source during the period for which emissions are reported. Depending on 
the type of source category, activity information may refer to the 
amount of fuel combusted, raw material processed, product manufactured, 
or material handled or processed. It may also refer to population, 
employment, or number of units. Activity throughput is typically the 
value that is multiplied against an emission factor to generate an 
emissions estimate.
    Annual emissions means actual emissions for a plant, point, or 
process that are measured or calculated to represent a calendar year.
    Ash content means inert residual portion of a fuel.
    Contact name means the complete name of the lead contact person for 
the organization transmitting the data set, including first name, 
middle name or initial, and surname.
    Contact phone number means the phone number for the contact name.
    Control device type means the name of the type of control device 
(e.g., wet scrubber, flaring, or process change).
    Day/wk in operations means days per week that the emitting process 
operates, averaged over the inventory period.
    Design capacity means a measure of the size of a point source, 
based on the reported maximum continuous throughput or output capacity 
of the unit. For a boiler, design capacity is based on the reported 
maximum continuous steam flow, usually in units of million BTU per 
hour.
    Emission factor means the ratio relating emissions of a specific 
pollutant to an activity or material throughput level.
    Emission release point type means the code for physical 
configuration of the release point.
    Emission type means the code describing temporal designation of 
emissions reported, i.e., Entire Period, Average Weekday, etc.
    Exit gas flow rate means the numeric value of the flow rate of a 
stack gas.
    Exit gas temperature means the numeric value of the temperature of 
an exit gas stream.
    Exit gas velocity means the numeric value of the velocity of an 
exit gas stream.
    Facility ID codes means the unique codes for a plant or facility 
treated as a point source, containing one or more pollutant-emitting 
units. The EPA's reporting format for a given inventory year may 
require several facility ID codes to ensure proper matching between 
databases, e.g., the state's own current and most recent facility ID 
codes, the EPA-assigned facility ID codes, and the ORIS (Department of 
Energy) ID code if applicable.
    Fall throughput (percent) means the part of the throughput or 
activity attributable to the three fall months (September, October, 
November). This expresses part of the annual activity information based 
on four seasons--typically spring, summer, fall, and winter. It is a 
percentage of the annual activity (e.g., out of 600 units produced each 
year, 150 units are produced in the fall which is 25 percent of the 
annual activity).
    FIPS Code. Federal Information Placement System (FIPS) means the 
system of unique numeric codes the government developed to identify 
states, counties and parishes for the entire United States, Puerto 
Rico, and Guam.
    Heat content means the amount of thermal heat energy in a solid, 
liquid, or gaseous fuel, averaged over the period for which emissions 
are reported. Fuel heat content is typically expressed in units of Btu/
lb of fuel, Btu/gal of fuel, joules/kg of fuel, etc.
    Hr/day in operations means the hours per day that the emitting 
process operates averaged over the inventory period.
    Inventory end date means the last day of the inventory period.
    Inventory start date means the first day of the inventory period.
    Inventory year means the year for which emissions estimates are 
calculated.
    Lead (Pb) means lead as defined in 40 CFR 50.12. Lead should be 
reported as elemental lead and its compounds.
    NAICS means North American Industry Classification System code. The 
NAICS codes are U.S. Department of Commerce's codes for businesses by 
products or services and have replaced Standard Industrial 
Classification codes.
    Maximum nameplate capacity means a measure of the size of a 
generator which is put on the unit's nameplate by the manufacturer. The 
data element is reported in megawatts or kilowatts.
    Method accuracy description (MAD) codes means a set of six codes 
used to define the accuracy of latitude/longitude data for point 
sources. The six codes and their definitions are:
    (1) Coordinate Data Source Code: The code that represents the party 
responsible for providing the latitude/longitude.
    (2) Horizontal Collection Method Code: Method used to determine the 
latitude/longitude coordinates for a point on the earth.
    (3) Horizontal Accuracy Measure: The measure of accuracy (in 
meters) of the latitude/longitude coordinates.
    (4) Horizontal Reference Datum Code: Code that represents the 
reference datum used to determine the latitude/longitude coordinates.
    (5) Reference Point Code: The code that represents the place for 
which geographic coordinates were established. Code value should be 106 
(e.g., point where substance is released).
    (6) Source Map Scale Number: The number that represents the 
proportional distance on the ground for one unit of measure on the map 
or photo.
    Mobile source means a motor vehicle, nonroad engine or nonroad 
vehicle, where:
    (1) A motor vehicle is any self-propelled vehicle used to carry 
people or property on a street or highway;
    (2) A nonroad engine is an internal combustion engine (including 
fuel system) that is not used in a motor vehicle or a vehicle used 
solely for competition, or that is not affected by sections 111 or 202 
of the CAA; and
    (3) A nonroad vehicle is a vehicle that is run by a nonroad engine 
and that is not a motor vehicle or a vehicle used solely for 
competition.
    Nitrogen oxides (NOX) means nitrogen oxides 
(NOX) as defined in 40 CFR 60.2 as all oxides of nitrogen 
except N2O.

[[Page 76555]]

Nitrogen oxides should be reported on an equivalent molecular weight 
basis as nitrogen dioxide (NO2).
    Nonpoint sources. Nonpoint sources collectively represent 
individual sources that have not been inventoried as specific point or 
mobile sources. These individual sources treated collectively as 
nonpoint sources are typically too small, numerous, or difficult to 
inventory using the methods for the other classes of sources.
    Ozone season means the period from May 1 through September 30 of a 
year.
    Particulate Matter (PM). Particulate matter is a criteria air 
pollutant. For the purpose of this subpart, the following definitions 
apply:
    (1) Filterable PM2.5 or Filterable PM10: 
Particles that are directly emitted by a source as a solid or liquid at 
stack or release conditions and captured on the filter of a stack test 
train. Filterable PM2.5 is particulate matter with an 
aerodynamic diameter equal to or less than 2.5 micrometers. Filterable 
PM10 is particulate matter with an aerodynamic diameter 
equal to or less than 10 micrometers.
    (2) Condensable PM: Material that is vapor phase at stack 
conditions, but which condenses and/or reacts upon cooling and dilution 
in the ambient air to form solid or liquid PM immediately after 
discharge from the stack. Note that all condensable PM, if present from 
a source, is typically in the PM2.5 size fraction, and 
therefore all of it is a component of both primary PM2.5 and 
primary PM10.
    (3) Primary PM2.5: The sum of filterable PM2.5 and 
condensable PM.
    (4) Primary PM10: The sum of filterable PM10 and 
condensable PM.
    (5) Secondary PM: Particles that form or grow in mass through 
chemical reactions in the ambient air well after dilution and 
condensation have occurred. Secondary PM is usually formed at some 
distance downwind from the source. Secondary PM should not be reported 
in the emission inventory and is not covered by this subpart.
    Physical address means the street address of a facility. This is 
the address of the location where the emissions occur; not, for 
example, the corporate headquarters.
    Point source means large, stationary (nonmobile), identifiable 
sources of emissions that release pollutants into the atmosphere. A 
point source is a facility that is a major source under 40 CFR part 70 
for the pollutants for which reporting is required, except for the 
emissions of hazardous air pollutants, which are not considered in 
determining whether a source is a point source under this subpart. The 
minimum point source reporting thresholds in tons per year of pollutant 
are as follows, as measured in potential to emit:

----------------------------------------------------------------------------------------------------------------
                                                                          Three-year cycle
          Pollutant            Annual cycle (Type --------------------------------------------------------------
                                   A sources)      Type B sources \1\               NAA sources \2\
----------------------------------------------------------------------------------------------------------------
(1) SOX......................         [gteqt]2500          [gteqt]100  [gteqt]100.
(2) VOC......................          [gteqt]250          [gteqt]100  O3 (moderate) [gteqt] 100.
(3) VOC......................  ..................  ..................  O3 (serious) [gteqt] 50.
(4) VOC......................  ..................  ..................  O3 (severe) [gteqt] 25.
(5) VOC......................  ..................  ..................  O3 (extreme) [gteqt] 10.
(6) NOX......................        [gteqt] 2500         [gteqt] 100  [gteqt] 100.
(7) CO.......................        [gteqt] 2500         [gteqt]1000  O3 (all areas) [gteqt] 100.
(8) CO.......................  ..................  ..................  CO (all areas) [gteqt] 100.
(9) Pb.......................  ..................           [gteqt] 5  [gteqt] 5.
(10) PM10....................         [gteqt] 250         [gteqt] 100  PM10 (moderate) [gteqt] 100.
(11) PM10....................  ..................  ..................  PM10 (serious) [gteqt] 70.
(12) PM2.5...................         [gteqt] 250         [gteqt] 100  [gteqt] 100.
(13) NH3.....................         [gteqt] 250         [gteqt] 100  [gteqt] 100.
----------------------------------------------------------------------------------------------------------------
\1\ Type A sources are a subset of the Type B sources and are the larger emitting sources by pollutant.
\2\ NAA = Nonattainment Area. Special point source reporting thresholds apply for certain pollutants by type of
  nonattainment area. The pollutants by nonattainment area are: Ozone: VOC, NOX, CO; CO: CO; PM10: PM10.

    Pollutant code means a unique code for each reported pollutant 
assigned by the reporting format specified by EPA for each inventory 
year.
    Primary capture and control efficiencies means two values 
indicating the emissions capture efficiency and the emission reduction 
efficiency of a primary control device. Capture and control 
efficiencies are usually expressed as a percentage.
    Process ID code means a unique code for the process generating the 
emissions, typically a description of a process.
    Roadway class means a classification system developed by the 
Federal Highway Administration that defines all public roadways as to 
type based on land use and physical characteristics of the roadway.
    Rule effectiveness (RE) means a rating of how well a regulatory 
program achieves all possible emissions reductions. This rating 
reflects the assumption that controls typically are not 100 percent 
effective because of equipment downtime, upsets, decreases in control 
efficiencies, and other deficiencies in emission estimates. Rule 
effectiveness adjusts the control efficiency from what could be 
realized under ideal conditions to what is actually emitted in practice 
due to less than ideal conditions.
    Rule penetration means the percentage of a nonpoint source category 
covered by an applicable regulation.
    SCC means source classification code, a process-level code that 
describes the equipment and/or operation which is emitting pollutants.
    Site name means the name of the facility.
    Spring throughput (percent) means part of the throughput or 
activity attributable to the three Spring months (March, April, May). 
See also the definition of Fall throughput.
    Stack diameter means the inner physical diameter of a stack.
    Stack height means physical height of a stack above the surrounding 
terrain.
    Stack ID code means a unique code for the point where emissions 
from one or more processes release into the atmosphere.
    Sulfur content means the sulfur content of a fuel, usually 
expressed as percent by weight.
    Summer day emissions means an average day's emissions for a typical 
summer work weekday. The state will select the particular month(s) in 
summer and the day(s) in the work week to be represented. The selection 
of conditions should be coordinated with the conditions assumed in the 
development of reasonable further

[[Page 76556]]

progress (RFP) plans, rate of progress plans and demonstrations, and/or 
emissions budgets for transportation conformity, to allow comparability 
of daily emission estimates.
    Summer throughput (percent) means the part of throughput or 
activity attributable to the three Summer months (June, July, August). 
See also the definition of Fall throughput.
    Total capture and control efficiency (percent) means the net 
emission reduction efficiency of all emissions collection devices.
    Type A source means large point sources with actual annual 
emissions greater than or equal to any of the emission thresholds 
listed in Table 1 of Appendix A of this subpart for Type A sources. If 
a source is a Type A source for any pollutant listed in Table 1, then 
the emissions for all Table 1 pollutants must be reported for that 
source.
    Unit ID code means a unique code for the unit of generation of 
emissions, typically a physical piece of or a closely related set of 
equipment. The EPA's reporting format for a given inventory year may 
require multiple unit ID codes to ensure proper matching between 
databases, e.g., the state's own current and most recent unit ID codes, 
the EPA-assigned unit ID codes if any, and the ORIS (Department of 
Energy) ID code if applicable.
    VMT by SCC means vehicle miles traveled disaggregated to the SCC 
level, i.e., reflecting combinations of vehicle type and roadway class. 
Vehicle miles traveled expresses vehicle activity and is used with 
emission factors. The emission factors are usually expressed in terms 
of grams per mile of travel. Because VMT does not correlate directly to 
emissions that occur while the vehicle is not moving, nonmoving 
emissions are incorporated into the emission factors in EPA's MOBILE 
Model.
    VOC means volatile organic compounds. The EPA's regulatory 
definition of VOC is in 40 CFR 51.100.
    Winter throughput (percent) means the part of throughput or 
activity attributable to the three winter months (January, February, 
December of the same year, e.g., winter 2005 is composed of January 
2005, February 2005, and December 2005). See also the definition of 
Fall throughput.
    Wk/yr in operation means weeks per year that the emitting process 
operates.
    Work weekday means any day of the week except Saturday or Sunday.
    X stack coordinate (longitude) means an object's east-west 
geographical coordinate.
    Y stack coordinate (latitude) means an object's north-south 
geographical coordinate.

Appendix A to Subpart A of Part 51--Tables

  Table 1 to Appendix A of Subpart A--Emission Thresholds by Pollutant
  (tpy\1\) for Treatment of Point Sources as Type A Under 40 CFR 51.30.
------------------------------------------------------------------------
                                               Emissions threshold for
                 Pollutant                         Type A treatment
------------------------------------------------------------------------
(1) SO2....................................  >=2500.
(2) VOC....................................  >=250.
(3) NOX....................................  >=2500.
(4) CO.....................................  >=2500.
(5) Pb.....................................  Does not determine Type A
                                              status.
(6) PM10...................................  >=250.
(7) PM2.5..................................  >=250.
(8) NH32...................................  >=250.
------------------------------------------------------------------------
\1\ tpy = Tons per year of actual emissions.
\2\ Ammonia threshold applies only in areas where ammonia emissions are
  a factor in determining whether a source is a major source, i.e.,
  where ammonia is considered a significant precursor of PM2.5.


   Table 2a to Appendix A of Subpart A--Data Elements For Reporting on
      Emissions From Point Sources, Where Required by 40 CFR 51.30
------------------------------------------------------------------------
                                           Every-year       Three-year
             Data elements                 reporting        reporting
------------------------------------------------------------------------
(1) Inventory year....................         [check]          [check]
(2) Inventory start date..............         [check]          [check]
(3) Inventory end date................         [check]          [check]
(4) Contact name......................         [check]          [check]
(5) Contact phone number..............         [check]          [check]
(6) FIPS code.........................         [check]          [check]
(7) Facility ID codes.................         [check]          [check]
(8) Unit ID code......................         [check]          [check]
(9) Process ID code...................         [check]          [check]
(10) Stack ID code....................         [check]          [check]
(11) Site name........................         [check]          [check]
(12) Physical address.................         [check]          [check]
(13) SCC..............................         [check]          [check]
(14) Heat content (fuel) (annual               [check]          [check]
 average).............................
(15) Heat content (fuel) (ozone                [check]          [check]
 season, if applicable)...............
(16) Ash content (fuel) (annual                [check]          [check]
 average).............................
(17) Sulfur content (fuel) (annual             [check]          [check]
 average).............................
(18) Pollutant code...................         [check]          [check]
(19) Activity/throughput (for each             [check]          [check]
 period reported).....................
(20) Summer day emissions (if                  [check]          [check]
 applicable)..........................
(21) Ozone season emissions (if                [check]          [check]
 applicable)..........................
(22) Annual emissions.................         [check]          [check]
(23) Emission factor..................         [check]          [check]

[[Page 76557]]


(24) Winter throughput (percent)......         [check]          [check]
(25) Spring throughput (percent)......         [check]          [check]
(26) Summer throughput (percent)......         [check]          [check]
(27) Fall throughput (percent)........         [check]          [check]
(28) Hr/day in operation..............         [check]          [check]
(29) Day/wk in operation..............         [check]          [check]
(30) Wk/yr in operation...............         [check]          [check]
(31) X stack coordinate (longitude)...  ...............         [check]
(32) Y stack coordinate (latitude)....  ...............         [check]
(33) Method accuracy description (MAD)  ...............         [check]
 codes................................
(34) Stack height.....................  ...............         [check]
(35) Stack diameter...................  ...............         [check]
(36) Exit gas temperature.............  ...............         [check]
(37) Exit gas velocity................  ...............         [check]
(38) Exit gas flow rate...............  ...............         [check]
(39) NAICS at the Facility level......  ...............         [check]
(40) Design capacity (including boiler  ...............         [check]
 capacity if applicable)..............
(41) Maximum generator nameplate        ...............         [check]
 Capacity.............................
(42) Primary capture and control        ...............         [check]
 efficiencies (percent)...............
(43) Total capture and control          ...............         [check]
 efficiency (percent).................
(44) Control device type..............  ...............         [check]
(45) Emission type....................  ...............         [check]
(46) Emission release point type......  ...............         [check]
(47) Rule effectiveness (percent).....  ...............         [check]
(48) Winter work weekday emissions of   ...............         [check]
 CO (if applicable)...................
------------------------------------------------------------------------


   Table 2b to Appendix A of Subpart A--Data Elements For Reporting on
    Emissions from Nonpoint Sources and Nonroad Mobile Sources, Where
                        Required by 40 CFR 51.30
------------------------------------------------------------------------
                                           Every-year       Three-year
             Data elements                 reporting        reporting
------------------------------------------------------------------------
(1) Inventory year....................         [check]          [check]
 (2) Inventory start date.............         [check]          [check]
(3) Inventory end date................         [check]          [check]
 (4) Contact name.....................         [check]          [check]
 (5) Contact phone number.............         [check]          [check]
 (6) FIPS code........................         [check]          [check]
 (7) SCC..............................         [check]          [check]
 (8) Emission factor..................         [check]          [check]
 (9) Activity/throughput level (for            [check]          [check]
 each period reported)................
 (10) Total capture/control efficiency         [check]          [check]
 (percent)............................
 (11) Rule effectiveness (percent)....         [check]          [check]
 (12) Rule penetration (percent)......         [check]          [check]
 (13) Pollutant code..................         [check]          [check]
 (14) Ozone season emissions (if               [check]          [check]
 applicable)..........................
 (15) Summer day emissions (if                 [check]          [check]
 applicable)..........................
 (16) Annual emissions................         [check]          [check]
 (17) Winter throughput (percent).....         [check]          [check]
 (18) Spring throughput (percent).....         [check]          [check]
 (19) Summer throughput (percent).....         [check]          [check]
 (20) Fall throughput (percent).......         [check]          [check]
 (21) Hrs/day in operation............         [check]          [check]
 (22) Days/wk in operation............         [check]          [check]
 (23) Wks/yr in operation.............         [check]          [check]
(24) Winter work weekday emissions of   ...............         [check]
 CO (if applicable)...................
------------------------------------------------------------------------


   Table 2c to Appendix A of Subpart A--Data Elements For Reporting on
  Emissions from Onroad Mobile Sources, Where Required by 40 CFR 51.30
------------------------------------------------------------------------
                                           Every-year       Three-year
             Data elements                 reporting        reporting
------------------------------------------------------------------------
1. Inventory year.....................         [check]          [check]
2. Inventory start date...............         [check]          [check]
3. Inventory end date.................         [check]          [check]
4. Contact name.......................         [check]          [check]
5. Contact phone number...............         [check]          [check]

[[Page 76558]]


6. FIPS code..........................         [check]          [check]
7. SCC................................         [check]          [check]
8. Emission factor....................         [check]          [check]
9. Activity (VMT by SCC)..............         [check]          [check]
10. Pollutant code....................         [check]          [check]
11. Ozone season emissions (if                 [check]          [check]
 applicable)..........................
12. Summer day emissions (if                   [check]          [check]
 applicable)..........................
13. Annual emissions..................         [check]          [check]
14. Winter throughput (percent).......         [check]          [check]
15. Spring throughput (percent).......         [check]          [check]
16. Summer throughput (percent).......         [check]          [check]
17. Fall throughput (percent).........         [check]          [check]
18. Winter work weekday emissions of    ...............         [check]
 CO (if applicable)...................
------------------------------------------------------------------------

Subpart G--[Amended]

0
3. Section 51.122 is revised to read as follows:


Sec.  51.122  Emissions reporting requirements for SIP revisions 
relating to budgets for NOx emissions.

    (a) As used in this section, words and terms shall have the 
meanings set forth in Sec.  51.50.
    (b) For its transport SIP revision under Sec.  51.121, each state 
must submit to EPA NOX emissions data as described in this 
section.
    (c) Each revision must provide for periodic reporting by the state 
of NOX emissions data to demonstrate whether the state's 
emissions are consistent with the projections contained in its approved 
SIP submission.
    (1) For the every-year reporting cycle, each revision must provide 
for reporting of NOX emissions data every year as follows:
    (i) The state must report to EPA emissions data from all 
NOX sources within the state for which the state specified 
control measures in its SIP submission under Sec.  51.121(g), including 
all sources for which the state has adopted measures that differ from 
the measures incorporated into the baseline inventory for the year 2007 
that the state developed in accordance with Sec.  51.121(g).
    (ii) If sources report NOX emissions data to EPA for a 
given year pursuant to a trading program approved under Sec.  51.121(p) 
or pursuant to the monitoring and reporting requirements of 40 CFR part 
75, then the state need not provide an every-year cycle report to EPA 
for such sources.
    (2) For the three-year cycle reporting, each plan must provide for 
triennial (i.e., every third year) reporting of NOX 
emissions data from all sources within the state.
    (3) The data availability requirements in Sec.  51.116 must be 
followed for all data submitted to meet the requirements of paragraphs 
(b)(1) and (2) of this section.
    (d) The data reported in paragraph (b) of this section must meet 
the requirements of subpart A of this part.
    (e) Approval of ozone season calculation by EPA. Each state must 
submit for EPA approval an example of the calculation procedure used to 
calculate ozone season emissions along with sufficient information to 
verify the calculated value of ozone season emissions.
    (f) Reporting schedules.
    (1) Data collection is to begin during the ozone season 1 year 
prior to the state's NOX SIP Call compliance date.
    (2) Reports are to be submitted according to paragraph (b) of this 
section.
    (3) Through 2011, reports are to be submitted according to the 
schedule in Table 1 of this paragraph. After 2011, triennial reports 
are to be submitted every third year and annual reports are to be 
submitted each year that a triennial report is not required.

                Table 1--Schedule for Submitting Reports
------------------------------------------------------------------------
           Data collection year                Type of report required
------------------------------------------------------------------------
2005......................................  Triennial.
2006......................................  Annual.
2007......................................  Annual.
2008......................................  Triennial.
2009......................................  Annual.
2010......................................  Annual.
2011......................................  Triennial.
------------------------------------------------------------------------

    (4) States must submit data for a required year within the time 
specified after the end of the inventory year for which the data are 
collected. The first inventory (the 2009 inventory year) and all 
subsequent years will be due 12 months following the end of the 
inventory year, i.e., the 2009 inventory must be reported to EPA by 
December 31, 2010.
    (g) Data reporting procedures are given in subpart A. When 
submitting a formal NOX Budget Emissions Report and 
associated data, states shall notify the appropriate EPA Regional 
Office.

[FR Doc. E8-29737 Filed 12-16-08; 8:45 am]

BILLING CODE 6560-50-P
