  SEQ CHAPTER \h \r 1 SUPPORTING STATEMENT

NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS EMISSIONS:
GROUP I POLYMERS AND RESINS

 

PART A

1.0  	Identification of the Information Collection

(a) 	Title and Number of the Information Collection.

	This information collection request (ICR) is entitled "Reporting and
Recordkeeping Requirements for National Emission Standards for Hazardous
Air Pollutant Emissions: Group I Polymers and Resins."  The EPA tracking
number is 2410.02, and the Office of Management and Budget (OMB) number
is 2060-0356. 

 (b) 	Short Characterization.

	This ICR covers information collection requirements in the final
rulemaking that amend title 40, chapter I, part 63 of the Code of
Federal Regulations (CFR) Subpart U National Emission Standards for
Hazardous Air Pollutants: Group I Polymers and Resins, hereafter, this
subpart is referred to as the "Polymers & Resins I NESHAP".  Respondents
are owners or operators subject to the new requirements of the NESHAP,
which include an estimated 5 existing facilities that produce butyl
rubber, epichlorohydrin elastomers, ethylene-propylene rubber, neoprene
rubber, and nitrile butadiene rubber.   Respondents also include owners
or operators of all 19 existing facilities regulated by the Polymers and
Resins I NESHAP who may wish to make use of the new affirmative defense
provisions in the amendments to the rule.

	The final standards add emissions limits for the back-end process
operations for the butyl rubber production, epichlorohydrin elastomers
production, neoprene rubber production, and nitrile butadiene rubber
production categories.  The owner or operator is required to calculate
and record the organic HAP emissions from all back end process
operations as well as the mass of elastomer product produced.  The final
rule also revises the MACT standards for front-end process vents for the
butyl rubber and ethylene propylene rubber source categories adding
limits for HCl emissions resulting from the combustion of chlorinated
organic compounds.  The owner or operator is required to calculate and
record the HCl emissions from the front-end process vents as well as the
mass of elastomer product produced.   Information related to these new
requirements is required to be submitted in the semi-annual reports
already required by the existing rule.   The final rule also adds
provisions for facility owners or operators to use if they wish to claim
an affirmative defense against civil penalties for exceedances of
emission standards caused by malfunctions.  If these provisions are
used, the owner or operator is required to meet certain criteria during
the malfunction, notify the Administrator of malfunctions that may cause
an exceedance of the emissions standards, and submit a report for the
malfunction to the Administrator, to include a root cause analysis of
the malfunction, within certain timeframes.

	Existing major sources subject to the new front-end process vent and
back-end operations requirements are required to comply with these
requirements within one year of the effective date (promulgation date)
of the standards.  All existing major sources may use the affirmative
defense provisions upon the effective date of the standards.  All new or
reconstructed affected sources must be in compliance with the existing
and new requirements of the Polymers & Resins I NESHAP on the date of
startup or the effective date, whichever is later.

	The new information collection requirements for existing and new
Polymers & Resins I manufacturing sources are listed in Attachment 1.

2.  	Need For and Use of the Collection

(a)	Need/Authority for the Collection.

	Section 112 of the Clean Air Act (CAA) requires EPA to establish NESHAP
for both major and area sources of HAP that are listed for regulation
under CAA section 112(c).  A major source is a stationary source that
has the potential to emit more than 10 tons per year [tpy] of any single
HAP and more than 25 tpy of any combination of HAP.  The Polymers &
Resins I source category contains major sources of HAP emissions and is
included on EPA’s list of categories for regulation.  The Polymers &
Resins I NESHAP are based on maximum achievable control technology
(MACT).

	Certain records and reports are necessary for the Administrator to
confirm the compliance status of major sources, identify any new or
reconstructed sources subject to the standards, and confirm that the
standards are being achieved on a continuous basis.  These recordkeeping
and reporting requirements are specifically authorized by section 114 of
the Clean Air Act (42 U.S.C. 7414) and set out in the part 63 NESHAP
General Provisions.  The recordkeeping and reporting requirements for
title V permits are contained in 40 CFR 70.6 and 40 CFR 71.6.  Under
parts 63 and 70 or 71, the owner or operator must keep each record for 5
years following the date of each occurrence, measurement, maintenance,
corrective action, report, or record.    

 (b)	Use/Users of the Data.

	The information will be used by the delegated authority (state agency,
or Regional Administrator if there is no delegated state agency) to
ensure that the standards and other requirements are being achieved. 
Based on review of the recorded information at the site and the reported
information, the delegated permitting authority can identify facilities
that may not be in compliance and decide which facilities, records, or
processes may need inspection.      

3.	Nonduplication, Consultations, and Other Collection Criteria

(a)	Nonduplication.

A computer search of our existing standards and ongoing ICRs revealed no
duplication of information gathering efforts.   However, certain reports
required by State or local agencies may duplicate information required
by the standards.  In such cases, a copy of the report submitted to the
State or local agency can be provided to the Administrator in lieu of
the required report. 

 (b)  	Public Notice Required Prior to ICR Submission to OMB.

This is a rule-related ICR and comments were solicited on the proposal
package and the proposed ICR.  This ICR contains revisions from the
proposed ICR to include burden associated with the provisions for
affirmative defense, the notification of facilities’ back-end process
operations emission limits, and the notification of facilities’
front-end process vent HCl emissions limits.  The revisions also include
the removal of burden associated with performance tests and monitors for
the front-end process vents.

(c)	Consultations.  The original rule was developed in consultation with
several representatives of the elastomers and synthetic resins industry,
environmental organizations, and state/local air pollution control
agencies.  The key non-EPA persons consulted on the information
collection activities during the original rule development are
identified in Table 1.  No consultations have occurred in the subsequent
time periods.

TABLE 1.  PERSONS CONSULTED ON THE INFORMATION COLLECTION ACTIVITIES

Contact	Title	Company

C.J. Jankowski	Managing Director	International Institute of

Synthetic Rubber Producers, Inc.

Alan Rautio	Director	Styrene Butadiene Latex

Manufacturers Council

R.D. Hembree	Staff Engineer	Exxon Chemical

George M. Ladzun	Corporate director of

Engineering and Operations

Support	Zeon Chemicals USA, Inc.

Thomas D. Gentner	Manager, Environmental Affairs	Morton International,
Inc.

Jonathon D. Miller	Air Emissions Specialist	DuPont Elastomers

Dave Berkebile	Principal Engineer, Corporate

Engineering	The Goodyear Tire and Rubber Co.

David Gustafson	Environmental Air Issues

Manager	Dow Chemical

Lloyd J. Tabary	Environmental Manager	DSM Copolymer



(d)	Effects of Less Frequent Collection.

	If the relevant information were collected less frequently, the
delegated permitting authority (State or EPA) will not be reasonably
assured that a facility is in compliance with the standards.  In
addition, the EPA's authority to take administrative action would be
significantly reduced; section l13(d) of the CAA limits the assessment
of administrative penalties to violations which occur no more than 12
months before initiation of the administrative proceeding.   Since
administrative proceedings are less costly and require use of fewer
resources than judicial proceedings, both the EPA and the regulated
community benefit from preservation of the EPA's administrative powers.

 (e)	General Guidelines. 

	The Polymers & Resins I NESHAP requires that facility owners or
operators retain records for a period of 5 years, which exceeds the
3-year retention period contained in the guidelines in 5 CFR 1320.6. 
The 5-year retention period is consistent with the subpart A General
Provisions of 40 CFR part 63 and the retention requirement in the
operating permit program under Title V of the CAA.  All subsequent
general guidelines have been followed and do not violate any of the
Paperwork Reduction Act guidelines contained in 5 CFR 1320.6.

(f)	Confidentiality.

	All information submitted to the Agency for which a claim of
confidentiality is made will be safeguarded according to the Agency
policies set forth in Title 40, Chapter 1, Part 2, Subpart
B--Confidentiality of Business Information (see 40 CFR 2; 41 FR 36902,
September 1, 1976; amended by 43 FR 39999, September 28, 1978; 43 FR
42251, September 28, 1978; 44 FR 17674, March 23, 1979).

(g)  	Sensitive Questions.  

	This section is not applicable because this ICR does not involve
matters of a sensitive nature.

4.	The Respondents and the Information Requested

(a)	Respondents/NAICS Codes.

Potential respondents under Subpart U are owners or operators of any
existing or new Polymers & Resins I manufacturing facility that is a
major source of HAP emissions.  The source category and affected sources
regulated by the Polymers & Resins I NESHAP are classified under the
Standard Industrial Classification (SIC) code 2822, for synthetic rubber
manufacturing.  The corresponding North American Industrial
Classification System (NAICS) code is 325212, for synthetic rubber
manufacturing.  

	According to information included in recent Federal Register notices
related to Residual Risk analyses, the Polymers & Resins I source
category is estimated to consist of 19 existing facilities nationwide,
all of which are major sources and would be subject to the major source
provisions specified under the Polymers & Resins I NESHAP.  We estimate
the 5 facilities will be subject to the new requirements of the NESHAP. 
All 19 existing facilities could make use of the new affirmative defense
provisions added to the rule.  No new major sources are projected during
the 3-year period of this ICR.  

(b) Information Requested.

	(i)  Data Items, Including Recordkeeping Requirements.  Attachment 1,
Information Requirements, summarizes the data items, including
recordkeeping and reporting requirements, for the Polymers & Resins I
source category.

		(ii)  Respondent Activities.  The respondent activities that are
required by the Polymers & Resins I NESHAP are identified in Table 2
(located at the end of this supporting statement) and are introduced in
section 6(a).

	(iii)  Summary of Requirements.  Facilities subject to the new
requirements for front-end process vents are required to provide a
notification of their front-end process vent HCl emissions limit and
perform and record monthly calculations of HCl emissions and the mass of
elastomer product produced.  Facilities subject to the new requirements
for back-end process operations are required to provide a notification
of their back-end limit and perform and record monthly calculations of
HAP emissions and the mass of elastomer product produced.  Information
related to these new requirements is required to be submitted in the
semi-annual reports already required by the existing rule. 

EPA is including in Table 3 (located at the end of this supporting
statement) an estimate of the burden associated with performing an
affirmative defense.  EPA is providing this as an illustrative example
of the potential additional administrative burden a source may incur to
assert in an Affirmative Defense in response to an action to enforce the
standards set forth in the applicable subpart.  

This illustrative estimate is not considered a duplicate estimate of
cost under the General Duty to Minimize Emissions clause under
63.6(e)(1)(i), which states:  “At all times, the owner and operator
must operate and maintain any affected source, including associated air
pollution control equipment and monitoring equipment, in a manner
consistent with safety and good air pollution control practices for
minimizing emissions.  Determining whether such operation and
maintenance procedures are being used will be based on information
available to the Administrator which may include, but is not limited to,
monitoring results, review of operation and maintenance procedures,
review of operation and maintenance records, and inspection of the
source.”  

To provide the public with an estimate of the relative magnitude of the
burden associated with an assertion of the affirmative defense position
adopted by a source, EPA provides an administrative adjustment to this
ICR that estimates the costs of the notification, recordkeeping and
reporting requirements associated with the assertion of the affirmative
defense.  EPA’s estimate for the required notification, reports and
records, including the root cause analysis, associated with a single
incident totals approximately $1,113 and is based on the time and effort
required of a source to review relevant data, interview plant employees,
and document the events surrounding a malfunction that has caused an
exceedance of an emission limit.  The estimate also includes time to
produce and retain the records and reports for submission to EPA.  EPA
provides this illustrative estimate of this burden because these costs
are only incurred if there has been a violation and a source chooses to
take advantage of the affirmative defense.  

Of the number of excess emission events reported by source operators,
only a small number would be expected to result from a malfunction, and
only a subset of excess emissions caused by malfunctions would result in
the source choosing to assert the affirmative defense.  Thus we believe
the number of instances in which source operators might be expected to
avail themselves of the affirmative defense will be extremely small. 
For this reason, we estimate no more than 2 or 3 such occurrences for
all sources within a given category over the 3-year period covered by
this ICR.  For the purpose of this estimate, we are adding two (2)
instances of affirmative defense.  We expect to gather information on
such events in the future and will revise this estimate as better
information becomes available.  

5.	The Information Collected–Agency Activities, Collection
Methodology, and Information Management

(a)	Agency Activities.

	The Agency activities associated with the Polymers & Resins I NESHAP
are provided in Table 4 (located at the end of this supporting
statement) and are introduced in section 6(c).

(b)	Collection Methodology and Management.

	Data and records maintained by the respondents are tabulated and
published for use in compliance and enforcement programs of the
delegated permitting authority.  The performance test notifications and
reports required under the final rule are used for problem
identification, as a check on source operation and maintenance, and for
compliance determinations.  EPA is the permitting authority until the
state agency is delegated authority to implement the rule.  Therefore,
information contained in the reports submitted to the Regional
Administrator will be entered into the Air Facility System (AFS), which
is operated and maintained by EPA’s Office of Compliance.  AFS is
EPA’s database for the collection, maintenance, and retrieval of
compliance data for approximately 125,000 industrial and
government-owned facilities.  EPA uses the AFS for tracking air
pollution compliance and enforcement by local and state regulatory
agencies, EPA regional offices and EPA headquarters.  EPA and its
delegated authorities can edit, store, retrieve and analyze the data.

(c)  	Small Entity Flexibility.

The Small Business Administration defines a small entity  as one that
meets the Small Business Administration size standards for small
businesses found at 13 CFR 121.201 (less than 1000 employees for NAICS
325212).  We estimate that none of the facilities affected by the new
requirements are small entities.  Accordingly, the rule does not impose
significant economic impact on a substantial number of small businesses,
and small business considerations do not apply.

(d)  	Collection Schedule.

	The specific frequency for each information collection activity within
this request is shown in Table 2 for the Polymers & Resins I source
category.

6.   	Estimating the Burden and Cost of the Collection

(a)  	Estimating Respondent Burden.

	The annual burden estimates for the Polymers & Resins I NESHAP are
shown in Table 2.  These numbers were derived from estimates based on
EPA’s experience with this and other standards.  No burden estimates
are provided for new sources because no new facilities are expected to
become affected sources during the 3year period of this ICR.

(b)  	Estimating Respondent Costs.

	The information collection activities for the Polymers & Resins I
NESHAP are presented in Table 2.  Because the facilities are already in
compliance with the existing rule, and no new sources are expected
within the next 3 years, no respondent development costs are associated
with the information collection activities.

	Information collection requirements for one-time-only reports are
included in the burden calculations because five facilities are required
to submit one-time-only notifications of their back-end process limit
and three facilities are required to submit one-time-only notifications
of the front-end process vents HCl emissions limit.  The estimates of
total technical-hours per year per source and the number of activities
per respondent per year listed in Table 2 are based upon experience with
similar information collection requirements in the HON and on the number
of emission points in each source.  

(i)  Estimating Labor Costs.  Labor rates and associated costs are based
on Bureau of Labor Statistics (BLS) data.  Technical, management, and
clerical average hourly rates for private industry workers were taken
from United States Department of Labor, Bureau of Labor Statistics for
NAICS 325200, May 2009 information, available at   HYPERLINK
"http://www.bls.gov/oes/current/naics4_325200.htm" 
http://www.bls.gov/oes/current/naics4_325200.htm .  Wages for technical
labor are based on "Production occupations: Chemical Equipment Operators
& Tenders" with a total compensation of $23.38/hour.  Wages for
management labor are taken from "Production occupations:  First-line
supervisors/managers of production and operating workers" with a total
compensation of $31.20/hour.  Wages for clerical labor are based on
"Office and administrative support occupations:  Office clerks general"
with a total compensation of $14.22/hour.  These rates represent
salaries plus fringe benefits and do not include the cost of overhead. 
An overhead rate of 110 percent is used to account for these costs.  The
fully-burdened hourly wage rates used to represent respondent labor
costs are:  technical at $49.10, management at $65.52, and clerical at
$29.86.  

	

 (ii)  Estimating Capital and Operations and Maintenance (O&M) Costs. 
The final standards do not include any capital or operations and
maintenance costs because no monitoring or other equipment is required
by the amendments to the rule.  

	(iii)  Annualizing Capital Costs.  Annualized costs are calculated by
multiplying the capital recovery factor by the capital cost.  The
capital recovery factor is 0.1098 based on an interest rate of 7 percent
and an assumed equipment life of 15 years.  The total annualized capital
cost is $795.

(iv)  Affirmative Defense, Root Cause Analysis, and Malfunction Costs. 
EPA’s estimate for a affirmative defense and root cause analysis is
based on general experience to calculate the time and effort required of
a source to review relevant data, interview plant employees, and
reconstruct the events prior to a malfunction in order to determine
primary and contributing causes.  The level of effort also includes time
to produce and retain the report in document form so that the source
will have it available should EPA or state enforcement agencies ever
request to review it.  

(c)  	Estimating Agency Burden and Cost.

	Because the information collection requirements were developed as an
incidental part of standards development, no costs can be attributed to
the development of the information collection requirements.  Because
reporting and recordkeeping requirements on the part of the respondents
are required under the operating permits rules in 40 CFR part 70 or part
71 and the part 63 NESHAP General Provisions, no operational costs will
be incurred by the Federal Government.  Publication and distribution of
the information are part of the Compliance Data System, with the result
that no Federal costs can be directly attributed to the ICR. 
Examination of records to be maintained by the respondents will occur
incidentally as part of the periodic inspection of sources that is part
of EPA’s overall compliance and enforcement program, and, therefore,
is not attributable to the ICR.  The only costs that the Federal
government will incur are user costs associated with the analysis of the
reported information, as presented in Table 4.

	The Agency labor rates are from the Office of Personnel Management
(OPM) 2009 General Schedule which excludes locality rates of pay.  These
rates can be obtained from Salary Table 2009-GS available on the OPM
website,   HYPERLINK
"http://www.opm.gov/flsa/oca/09tables/html/gs_h.asp" 
http://www.opm.gov/flsa/oca/09tables/html/gs_h.asp .  The government
employee labor rates are $15.40/hour for clerical (GS-6, Step 3), $28.45
for technical (GS-12, Step 1), and $38.35/hr for management (GS-13, Step
5).  These rates were increased by 60 percent to include fringe benefits
and overhead.  The fully-burdened wage rates used to represent Agency
labor costs are:  clerical at $24.64; technical at $45.52, and
management at $61.36.

(d) 	Estimating the Respondent Universe and Total Burden and Costs.

	There are an estimated 5 existing facilities that will be subject to
the new provisions of the Polymers & Resins I NESHAP.  No new sources
are expected during the next 3 years.  While all 19 existing facilities
could make use of the new affirmative defense provisions added to the
rule, EPA estimates only two total instances of the use of these
provisions from all 19 facilities over the three year ICR period. 
Consequently, the average annual number of Polymers & Resins I
manufacturing facility respondents during the 3-year period of this ICR
is 5.  

For the Polymers & Resins I NESHAP, the components of the total annual
responses attributable to this ICR are one-time notifications of
performance tests and performance test reports for two respondents.  
For five respondents, a notification of the back-end process limit,
recordkeeping, and a small amount of additional information will be
required to be added to the semiannual reports already required for
these respondents.   As these reports are already required by the
existing rule, they are not included in this ICR.  The number of total
annual responses for subpart U is estimated as:  3.

(e)	Bottom Line Burden Hours and Cost Tables.

(i)  Respondent tally.  The bottom line respondent burden hours and
costs, presented in Table 2 are calculated by adding person-hours per
year down each column for technical, managerial, and clerical staff, and
by adding down the cost column.  The annual burden for the recordkeeping
and reporting requirements for the 5 existing facilities subject to the
new back-end operations and front-end process vent requirements and the
19 existing facilities subject to the new affirmative defense provisions
of the Polymers & Resins I Manufacturing NESHAP is 251 person-hours,
with an annual labor cost of $12,222 and annualized capital costs of $0.

	(ii)  The Agency tally.  The average annual Federal Government cost is
$408 for 9 hours for the new requirements of subpart U.  The bottom line
Agency burden hours and costs presented in Table 4 (located at the end
of this supporting statement) are calculated by adding person-hours per
year down each column for technical, managerial, and clerical staff, and
by adding down the cost column. 

	(iii)  Variations in the annual bottom line.  This section does not
apply since no significant variation is anticipated.

(f)	Reasons for Change in Burden.

We are requesting an increase in burden of 251 hours due to
implementation of the new provisions of this regulation.  EPA provides
an adjustment to this ICR that estimates the costs of the notification,
recordkeeping and reporting requirements associated with the assertion
of the affirmative defense.  EPA’s estimate for the required
notification, reports and records, including the root cause analysis,
associated with a single incident totals approximately $1,670 and is
based on the time and effort required of a source to review relevant
data, interview plant employees, and document the events surrounding a
malfunction that has caused an exceedance of an emission limit.  The
estimate also includes time to produce and retain the records and
reports for submission to EPA.  For the purpose of estimating the annual
burden, EPA is attributing a total of 2 instances of affirmative defense
over a three year period across all sources in the category.  EPA is
using this frequency of 2 events in three years because, of the number
of excess emission events reported by source operators, only a small
number would be expected to result from a malfunction, and only a subset
of excess emissions caused by malfunctions would result in the source
choosing to assert the affirmative defense.  Thus, we believe the number
of instances in which source operators might be expected to avail
themselves of the affirmative defense will be extremely small.  

 (g)  	Burden Statement

	The annual public reporting and recordkeeping burden for this
collection of information is estimated to average 75 hours per response.
 The average annual respondent burden for the new Polymers & Resins I
Manufacturing NESHAP requirements is estimated at 50 hours.

Burden means the total time, effort, or financial resources expended by
persons to generate, maintain, retain, or disclose or provide
information to or for a Federal agency.  This includes the time needed
to review instructions; develop, acquire, install, and utilize
technology and systems for the purposes of collecting, validating, and
verifying information, processing and maintaining information, and
disclosing and providing information; adjust the existing ways to comply
with any previously applicable instructions and requirements; train
personnel to be able to respond to a collection of information; search
data sources; complete and review the collection of information; and
transmit or otherwise disclose the information.

	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 63 are listed in 40 CFR part 9.

	To comment on the Agency’s need for this information the accuracy of
the provided burden estimates, and any suggestions for minimizing
respondent burden, including through the use of automated collection
techniques, EPA has established a public docket for this ICR under
Docket ID No. EPA-HQ-OAR-2010-0600, which is available for online
viewing at   HYPERLINK "http://www.regulations.gov" 
http://www.regulations.gov , or in person viewing at the Air and
Radiation Docket and Information Center in the EPA Docket Center
(EPA/DC), EPA West, Room 3334, 1301 Constitution Ave., NW, Washington,
DC.  The EPA Docket Center 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 Reading Room is (202) 566-1744, and the
telephone number for the Air Docket is (202) 566-1742.  An electronic
version of the public docket is available at   HYPERLINK
"http://www.regulations.gov."  http://www.regulations.gov.   This site
can be used to submit or view public comments, access the index listing
of the contents of the public docket, and to access those documents in
the public docket that are available electronically.  When in the
system, select “search,” then key in one of the Docket ID Numbers
identified above.  Also, you can send comments to the Office of
Information and Regulatory Affairs, Office of Management and Budget, 725
17th Street, NW, Washington, DC 20503, Attention Desk Officer for EPA. 
Please include the relevant Docket ID Number (EPA-HQ-OAR-2010-0600) in
any correspondence.

PART B

	This section is not applicable because statistical methods are not used
in data collection associated with the rule.

 

TABLE 3.  SINGLE AFFIRMATIVE DEFENSE BURDEN ESTIMATE

Personnel 	Number of Personnel 	Time Requirement (hours)	Total Hours
Hourly Rate ($/hr)	Total

Technical Personnel	3	6	18	49.10	$ 884

Managerial Personnel	2	6	12	65.52	$ 786

Total	5	 	30

 $1,670



 

ATTACHMENT 1.  INFORMATION REQUIREMENTS--NESHAP FOR POLYMERS AND RESINS
I MANUFACTURING

Requirement	Citation for existing sources	Citation for new sources
General Provisions citation

Notifications



	Notification of front-end process vent HCl limit	§63.485(q)
§63.485(q)	N/A

Notification of back-end limit	§63.499(f)(1)	§63.499(f)(1)	N/A

Records



	Records of notifications	§63.506(e)	§63.506(e)	40 CFR 63.10

Records that demonstrate continuous compliance	§63.498(a)(4),
§63.498(e), §63.506(d)	§63.498(a)(4), §63.498(e), §63.506(d)	40 CFR
63.10

Reports



	Back-end process vents records in periodic reports	§63.499(f),
§63.506(e)(6)	§63.499(f), §63.506(e)(6)	N/A

Front-end process vents records in periodic reports	§63.506(d),
§63.506(e)(6)	§63.506(d), §63.506(e)(6)	N/A

Reports of malfunctions that result in an exceedances of the standard
for the purpose of affirmative defense	§63.480(j)(4)	§63.480(j)(4)	N/A

 

 72 FR 70543, December 12, 2007; and 73 FR 60432, October 10, 2008.

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