notification and reporting under 40 CFR 63.8. For the final rule, the
EPA has revised Table 10 of 40 CFR part 63, subpart DDDD, to clarify
that the CMS performance evaluation provisions in 40 CFR 63.8(e) and
the RATA provisions in 40 CFR 63.8(f)(6) only apply for CEMS under
subpart DDDD.

H. Non-HAP Coating Definition

    The EPA proposed to replace the references to Occupational Safety
and Health Administration (OSHA)-defined carcinogens and 29 CFR
1910.1200(d)(4) in the PCWP ``non-HAP coating'' definition with a
reference to a new appendix B to 40 CFR part 63, subpart DDDD. The
proposed appendix listed the specific carcinogenic HAP that must be
below 0.1 percent by mass for a PCWP coating to be considered a non-HAP
coating.
    One commenter stated that the Hazard Communication Standard (HCS)
(29 CFR 1910.1200(g)), revised in 2012, requires that a chemical
manufacturer, distributor, or importer provide a Safety Data Sheet
(SDS) (formerly MSDSs or Material Safety Data Sheets) for each
hazardous chemical to downstream users, and that PCWP facilities rely
on SDSs to identify whether coatings contain carcinogens. The commenter
stated that if the EPA finalizes a separate list of HAP in appendix B
to 40 CFR part 63, subpart DDDD, there will be no certainty as to
whether non-HAP coatings are being used because of the

discrepancy in HAP listed on SDSs (per the HCS) and in appendix B to
subpart DDDD. The commenter suggested the EPA should remove appendix B
to subpart DDDD and instead reference the OSHA SDS requirements for
classification of carcinogenicity at 29 CFR 1910.1200, appendix A,
section A.6.4, which match the requirements in the now obsolete OSHA
regulatory reference proposed for deletion from the PCWP non-HAP
coating definition.
    The EPA agrees that referencing appendix A to 29 CFR 1910.1200 in
the PCWP rule's non-HAP coating definition is a more streamlined
approach for the PCWP NESHAP than use of the proposed appendix B to 40
CFR part 63, subpart DDDD. The OSHA language the PCWP proposal sought
to replace is in appendix A to 29 CFR 1910.1200, section A.6.4. For the
final PCWP amendments, the EPA is defining non-HAP coating to mean a
coating with HAP contents below 0.1 percent by mass for OSHA-defined
carcinogens as specified in section A.6.4 of appendix A to 29 CFR
1910.1200 and below 1.0 percent by mass for other HAP compounds. As a
result of the new reference, the proposed appendix B is not being
finalized.

I. Technical and Editorial Changes

    The EPA is finalizing the following technical and editorial changes
to the final rule as proposed:
     The clarifying reference to ``SSM plans'' in 40 CFR
63.2252 was removed because SSM plans would no longer be applicable
after the date specified in 40 CFR 63.2250(c);
     the redundant reference in 40 CFR 63.2281(c)(6) for
submittal of performance test results with the compliance report was
eliminated because performance test results would be required to be
electronically reported;
     the EPA revised 40 CFR 63.2281(d)(2) and added language to
40 CFR 63.2281(e) introductory text and (e)(12) and (13) to make these
paragraphs more consistent to facilitate electronic reporting;
     a provision stating that the EPA retains authority to
approve alternatives to electronic reporting was added to 40 CFR
63.2291(c)(5);
     cross-references to the 40 CFR part 60 appendices
containing test methods were updated in Table 4 of the rule;
     cross-references were updated throughout the rule, as
needed, to match the proposed changes;
     cross-references to 40 CFR 63.14 were updated to remove
outdated paragraph references;
     the equation number cross-referenced in the definition of
``MSF'' was corrected; and
     the cross-reference in 40 CFR 63.2290 was updated to
include all sections of the General Provisions.

J. Compliance Dates

    The EPA proposed that existing affected sources and other affected
sources that commenced construction or reconstruction on or before
September 6, 2019, must comply with all of the amendments 6 months (180
days) after the effective date of the final rule.\8\ The EPA also
proposed the addition of electronic reporting requirements that will
require use of a semiannual reporting template once the template has
been available on the CEDRI website (https://www.epa.gov/electronic-reporting-air-emissions/compliance-and-emissions-data-reporting-interface-cedri) for 6 months. New requirements to conduct repeat
performance testing every 5 years for facilities using an add-on
control system other than a biofilter (see section IV.E of this
preamble) were also proposed. The first of the repeat performance tests
would be required to be conducted within 3 years after the effective
date of the revised standards, or within 5 years (60 months) following
the previous performance test, whichever is later, and thereafter
within 60 months following the previous performance test. The EPA
specifically requested comment on whether the proposed compliance times
provide enough time for owners or operators to comply with the proposed
amendments, and if the proposed time window is not adequate, requested
that commenters provide an explanation of specific actions that would
need to be undertaken to comply with the proposed amended requirements
and the time needed to make the adjustments for compliance with any of
the revised requirements.
---------------------------------------------------------------------------

    \8\ The final action is not a ``major rule'' as defined by 5
U.S.C. 804(2), therefore, the effective date of the final rule is
the promulgation date as specified in CAA section 112(d)(10).
---------------------------------------------------------------------------

    One commenter stated that the 180 days proposed by the EPA for
existing facilities to comply with all of the proposed amendments is
not enough time to complete all of the activities that must be done in
order to effect a smooth transition to the new requirements, including:
Developing a site-specific implementation plan; implementing new
startup and shutdown procedures; reprogramming of electronic systems
and automated alarms to account for the removal of SSM provisions and
the addition of new startup and shutdown related work practices;
reworking recordkeeping and reporting systems to match the layout of
the new CEDRI form (e.g., breaking out reporting by individual
equipment instead of by process group); developing and communicating
guidance to ensure consistent implementation across a company's
facilities; preparing permit applications and acquiring revised air
permits to reflect the elimination of SSM provisions and addition of
new requirements; developing procedures for estimating excess emissions
due to deviations; and developing and providing training for facility
staff on the revised requirements. The commenter further stated that
applying for and receiving a permit revision to reflect the revised
requirements alone will likely take more than 180 days and expressed
concern that if additional time is not provided and if current permit
language conflicts with the final RTR rule, facilities will have to
determine how to comply with both the old requirements and the new
requirements. The commenter also noted that working with information
technology support staff to re-program a facility's electronic systems
to align with the new requirements is an effort that takes more than
180 days to plan and implement.
    After considering the public comments, the EPA recognizes that 180
days is not practicable for completion of the steps needed to implement
the PCWP rule changes given the complexity of operations in the PCWP
source category. The PCWP industry involves manufacturing of several
different products, using a variety of process unit and control system
combinations that differ from facility to facility. As documented in
the technology review, the PCWP processes and controls at many mills
are highly interconnected (e.g., where multiple different types of
process units are routed to the same control device; process units of
one type are routed through process units of a different type to
emissions control; or where the furnace that provides process heat is
also part of the air pollution control system for some processes). The
interconnectivity of processes and fire-prevention systems needed for
processing wood requires a high degree of automation and
interconnection in the programmable logic controllers and data
acquisition systems (DAS) tailored to each PCWP plant site. Some
companies have one PCWP facility while others have more than 10
facilities manufacturing different PCWP products using a variety of
equipment

configurations. The EPA understands that companies with numerous PCWP
facilities need time for corporate coordination of IT programming
resources across multiple uniquely configured plant sites, while
companies with fewer facilities have more-limited environmental staff
that are sometimes shared across two or three PCWP facilities to
oversee reprogramming. The EPA has concluded that 1 year following the
effective date of the final amendments is the most expeditious
compliance period practicable for existing PCWP affected sources to
make the DAS adjustments needed to demonstrate compliance with the
revised requirements during startup and shutdown periods and to
transition to electronic reporting. All existing affected facilities
will have to continue to meet the current requirements of the NESHAP
until the applicable compliance date of the amended rule. Affected
sources that commence construction or reconstruction after September 6,
2019 (the publication date of the proposed rulemaking) must comply with
all requirements of the subpart, including the final amendments, no
later than the effective date of the final rule or upon initial
startup, whichever is later.
    Regarding the compliance timeline for semiannual reporting, the EPA
received comments requesting that the new requirements come into effect
at the beginning of a semiannual reporting period, and not in the
middle of a reporting period to avoid two different reports being
prepared. The EPA recognizes that there can be a transitional
compliance period because of the way the effective date of the final
PCWP rule is set as the date of publication of the final Federal
Register document. During this transitional period for existing
sources, the previously promulgated rule requirements must be met until
the compliance date (e.g., compliance with the SSM plan), and then the
newly promulgated requirements must be met thereafter. The EPA
anticipates that this transitional semiannual reporting period will
occur before the PCWP semiannual electronic reporting spreadsheet is
required to be used. To ensure this, we have revised the final rule to
specify use of the semiannual reporting template for the first full
reporting period after it has been available on the CEDRI website for 1
year.
    Regarding the compliance timeline for repeat emissions testing, the
compliance dates are included in the final rule as proposed. No
comments were received regarding the compliance dates for repeat
emissions testing. As proposed, the first of the repeat performance
tests must be conducted within 3 years after August 13, 2020, or within
60 months following the previous performance test, whichever is later.

V. Summary of Cost, Environmental, and Economic Impacts and Additional
Analyses Conducted

A. What are the affected facilities?

    As noted in the preamble to the proposed amendments, the EPA
identified 230 facilities that are operating and subject to the PCWP
NESHAP. This includes 109 facilities manufacturing one or more PCWP
products (e.g., plywood, veneer, particleboard, OSB, hardboard,
fiberboard, MDF, engineered wood products) and 121 facilities that
produce kiln-dried lumber. Sixteen facilities produce PCWP products and
kiln-dried lumber. Information on operational facilities is included in
the Technology Review for the Plywood and Composite Wood Products
NESHAP, available as Docket Item No. EPA-HQ-OAR-2016-0243-0189. In
addition, the EPA is aware of 13 greenfield facilities (four PCWP and
nine kiln-dried lumber mills) that recently commenced construction as
major sources of HAP emissions. The EPA is projecting that two new OSB
mills will be constructed as major sources within the next 5 years, and
that existing facilities will add or replace process units during this
same time frame. More details on our projections of new sources are
available in Projections of the Number of New and Reconstructed Sources
for the Subpart DDDD Technology Review, available as Docket Item No.
EPA-HQ-OAR-2016-0243-0182.

B. What are the air quality impacts?

    The nationwide baseline HAP emissions from the 230 facilities in
the PCWP source category are estimated to be 7,600 tpy. Emissions of
the six compounds defined as ``total HAP'' in the PCWP NESHAP
(acetaldehyde, acrolein, formaldehyde, methanol, phenol, and
propionaldehyde) make up 96 percent of the nationwide emissions. The
amendments include removal of the SSM exemption and addition of repeat
emissions testing for controls other than biofilters (which already
require repeat tests). Although the EPA is unable to quantify the
emission reduction associated with these changes, we expect that
emissions will be reduced by requiring facilities to meet the
applicable standard during periods of SSM and that the repeat emissions
testing requirements will encourage operation of add-on controls to
achieve optimum performance. The EPA is not finalizing other revisions
to the emission limits that would impact emissions, so there are no
quantifiable air quality impacts resulting from the final amendments.

C. What are the cost impacts?

    No capital costs are estimated to be incurred to comply with the
final amendments. The costs associated with the final amendments are
related to recordkeeping and reporting labor costs and repeat
performance testing. Because repeat performance testing is required
every 5 years, costs are estimated and summarized over a 5-year period.
The nationwide cost of the final amendments is estimated to include a
one-time cost of $1.3 million for facilities to review the revised rule
and make record systems adjustments and a cost of $3.5 million every 5
years for repeat emissions testing. These costs are in 2018 dollars.
    Another metric for presenting the one-time costs is as a present
value (PV), which is a technique that converts a stream of costs over
time into a one-time estimate for the present year or other year. The
EPA estimates that the PV of costs for these final amendments is $5.6
million at a discount rate of 7 percent and $6.9 million at a discount
rate of 3 percent. In addition, the EPA presents these costs as an
equivalent annualized value (EAV) in order to provide an estimate of
annual costs consistent with the PV. The EAV for these final amendments
is estimated to be $0.9 million at a discount rate of 7 percent and
$1.0 million at a discount rate of 3 percent. The PV and EAV cost
estimates are in 2016 dollars, in part, to conform to Executive Order
13771 requirements. These estimates have not changed since the
proposal. For further information on the costs associated with the
amendments, see the memorandum, Cost, Environmental, and Energy Impacts
of Regulatory Options for Subpart DDDD, Docket Item No. EPA-HQ-OAR-
2016-0243-0184, and the memorandum, Economic Impact and Small Business
Analysis for the Proposed Plywood and Composite Wood Products Risk and
Technology Review (RTR) NESHAP, Docket Item No. EPA-HQ-OAR-2016-0243-
0185.

D. What are the economic impacts?

    The EPA estimated that none of the ultimate parent owners affected
by the proposed amendments would incur annualized costs of 1.0 percent
or greater of their revenues, and that estimate has not changed since
proposal. Thus, these economic impacts are low for affected companies
and the

industries impacted by this action, and there will not be substantial
impacts in the markets for affected products. For more information on
the economic impact analysis conducted for the proposal, see the
memorandum titled Economic Impact and Small Business Analysis for the
Proposed Plywood and Composite Wood Risk and Technology Review (RTR)
NESHAP, Docket Item No. EPA-HQ-OAR-2016-0243-0185.

E. What are the benefits?

    The EPA is not finalizing changes to emissions limits, except to
the extent necessary to make them applicable during SSM periods and to
establish work practice requirements for certain startup and shutdown
periods. The EPA estimates the final amendments (i.e., changes to SSM,
recordkeeping, reporting, and monitoring) are not economically
significant. Because these amendments are not considered economically
significant, as defined by Executive Order 12866, and because no
emissions reductions were estimated, the EPA did not estimate any
benefits from reducing emissions.

F. What analysis of environmental justice did we conduct?

    Executive Order 12898 (59 FR 7629, February 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.
    To examine the potential for any environmental justice issues that
might be associated with the source category, the EPA performed a
demographic analysis, which is an assessment of risks to individual
demographic groups of the populations living within 5 kilometers (km)
and within 50 km of the facilities. In the analysis, we evaluated the
distribution of HAP-related cancer and noncancer risks from each source
category across different demographic groups within the populations
living near facilities. The results of the PCWP source category
demographic analysis indicate that emissions from the source category
expose approximately 200,000 people to a cancer risk at or above 1-in-1
million and zero people to a chronic noncancer TOSHI greater than 1.
The percentages of the at-risk population in four of the 11 demographic
groups (African American, Native American, below poverty level, and
over 25 without a high school diploma) are greater than their
respective nationwide percentages.
    The methodology and the results of the demographic analysis are
presented in the technical report, Risk and Technology Review--Analysis
of Demographic Factors for Populations Living Near Plywood and
Composite Wood Products Source Category, Docket Item No. EPA-HQ-OAR-
2016-0243-0181.

G. What analysis of children's environmental health did we conduct?

    The EPA does not believe the environmental health or safety risks
addressed by this action present a disproportionate risk to children.
This action's health and risk assessments are contained in the Residual
Risk Assessment for the Plywood and Composite Wood Products Source
Category in Support of the 2019 Risk and Technology Review Final Rule,
available in the docket for this action, Docket ID No. EPA-HQ-OAR-2016-
0243.

VI. Statutory and Executive Order Reviews

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

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

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

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

    This action is not an Executive Order 13771 regulatory action
because this action is not significant under Executive Order 12866.

C. Paperwork Reduction Act (PRA)

    The information collection activities in this final rule have been
submitted for approval to OMB under the PRA. The ICR document that the
EPA prepared has been assigned EPA ICR number 1984.09. You can find a
copy of the ICR in the docket for this rule, and it is briefly
summarized here. The information collection requirements are not
enforceable until OMB approves them.
    The information is being collected to assure compliance with 40 CFR
part 63, subpart DDDD. The information requirements are based on
notification, recordkeeping, and reporting requirements in the NESHAP
General Provisions (40 CFR part 63, subpart A), which are mandatory for
all operators subject to national emissions standards. The information
collection activities also include paperwork requirements associated
with initial and repeat performance testing and parameter monitoring.
The final amendments to the rule eliminate the paperwork requirements
associated with the SSM plan and recordkeeping of SSM events and
require electronic submittal of performance test results and semiannual
compliance reports. These recordkeeping and reporting requirements are
specifically authorized by CAA section 114 (42 U.S.C. 7414).
    Respondents/affected entities: Owners or operators of facilities
subject to 40 CFR part 63, subpart DDDD, that produce plywood,
composite wood products, or kiln-dried lumber.
    Respondent's obligation to respond: Mandatory (40 CFR part 63,
subpart DDDD).
    Estimated number of respondents: 244 facilities (including existing
and new facilities projected to begin reporting during the ICR period).
    Frequency of response: The frequency varies depending on the type
of response (e.g., initial notification, semiannual compliance report).
    Total estimated burden: 39,700 hours (per year). Burden is defined
at 5 CFR 1320.3(b).
    Total estimated cost: $6,930,000 (per year), includes $2,365,000
annualized capital or operation and maintenance costs.
    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 the
EPA's regulations in 40 CFR are listed in 40 CFR part 9. When OMB
approves this ICR, the Agency will announce that approval in the
Federal Register and publish a technical amendment to 40 CFR part 9 to
display the OMB control number for the approved information collection
activities contained in this final rule.

D. Regulatory Flexibility Act (RFA)

    I certify that this action will not have a significant economic
impact on a substantial number of small entities under the RFA. In
making this determination, the impact of concern is any significant
adverse economic impact on small entities. An agency may certify that a
rule will not have a significant economic impact on a substantial
number of small entities if

the rule relieves regulatory burden, has no net burden, or otherwise
has a positive economic effect on the small entities subject to the
rule. Of the 69 ultimate parent entities that are subject to the rule,
28 are small according to the Small Business Administration's small
business size standards and standards regarding other entities (e.g.,
federally recognized tribes). None of the affected 28 small entities
have annualized costs of 1 percent or greater of sales. The EPA has,
therefore, concluded that this action will not have a significant
impact on a substantial number of small entities.

E. Unfunded Mandates Reform Act (UMRA)

    This action does not contain an unfunded mandate of $100 million or
more as described in UMRA, 2 U.S.C. 1531-1538, and does not
significantly or uniquely affect small governments. While this action
creates an enforceable duty on the private sector, the cost does not
exceed $100 million or more.

F. Executive Order 13132: Federalism

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

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

    This action does not have tribal implications as specified in
Executive Order 13175. 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. No tribal governments
own facilities that are impacted by the proposed changes to the NESHAP.
Thus, Executive Order 13175 does not apply to this action.

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

    This action is not subject to Executive Order 13045 because it is
not economically significant as defined in Executive Order 12866, and
because the EPA does not believe the environmental health or safety
risks addressed by this action present a disproportionate risk to
children. This action's health and risk assessments are discussed in
sections III and IV of this preamble and further documented in the risk
report titled Residual Risk Assessment for the Plywood and Composite
Wood Products Source Category in Support of the 2019 Risk and
Technology Review Final Rule, which can be found in the docket for this
action.

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

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

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

    This action involves technical standards. The EPA is finalizing the
use of the standards currently listed in Table 4 of the rule (40 CFR
part 63, subpart DDDD). The EPA is amending 40 CFR 63.14 to incorporate
by reference EPA Method 0011 for measurement of formaldehyde. Method
0011 is applicable to the determination of destruction and removal
efficiency of analytes including formaldehyde and other compounds.
Pollutants withdrawn isokinetically from the emission source and are
collected in aqueous acidic 2,4-dinitrophenylhydrazine. Formaldehyde
present in the emission stream reacts to form a derivative that
extracted, solvent-exchanged, concentrated, and then analyzed by high
performance liquid chromatography. The SW-846 Method 0011 (Revision 0,
December 1996) is available in ``Test Methods for Evaluating Solid
Waste, Physical/Chemical Methods,'' EPA Publication No. SW-846. This
method was included in the PCWP rule when it was promulgated in 2004
and is reasonably available from the EPA at https://www.epa.gov/hw-sw846/sw-846-compendium. Under 40 CFR 63.7(f) and 40 CFR 63.8(f) of
subpart A of the General Provisions, a source may apply to the EPA for
permission to use alternative test methods or alternative monitoring
requirements in place of any required testing methods, performance
specifications, or procedures in the final rule or any amendments.
    The following standards, referenced in the regulatory text, are
already approved for incorporation by reference at their respective
locations: NCASI Method CI/WP-98.01; NCASI Method IM/CAN/WP-99.02;
NCASI Method ISS/FP-A105.01; ASTM D6348-03.

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

    The EPA believes that this action does not have disproportionately
high and adverse human health or environmental effects on minority
populations, low income populations, and/or indigenous peoples, as
specified in Executive Order 12898 (59 FR 7629, February 16, 1994).
    The documentation for this decision is contained in section IV.A.6
of the preamble to the proposed amendments (84 FR 47074, September 6,
2019) and the technical report, Risk and Technology Review--Analysis of
Demographic Factors for Populations Living Near Plywood and Composite
Wood Products Source Category, Docket Item No. EPA-HQ-OAR-2016-0243-
0181.

L. Congressional Review Act (CRA)

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

List of Subjects in 40 CFR Part 63

    Environmental protection, Administrative practice and procedures,
Air pollution control, Hazardous substances, Incorporation by
reference, Intergovernmental relations, Reporting and recordkeeping
requirements.

Andrew Wheeler,
Administrator.

    For the reasons set forth in the preamble, 40 CFR part 63 is
amended as follows:

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

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

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

Subpart A--General Provisions

0
2. Section 63.14 is amended by redesignating paragraphs (n)(8) through
(28) as (n)(9) through (29) and adding new paragraph (n)(8) to read as
follows:

Sec.  63.14  Incorporations by reference.

* * * * *
    (n) * * *
    (8) SW-846-0011, Sampling for Selected Aldehyde and Ketone
Emissions from Stationary Sources, Revision 0, December 1996, in EPA
Publication No. SW-846, Test Methods

for Evaluating Solid Waste, Physical/Chemical Methods, Third Edition,
IBR approved for table 4 to subpart DDDD.
* * * * *

Subpart DDDD--National Emission Standards for Hazardous Air
Pollutants: Plywood and Composite Wood Products

0
3. Section 63.2233 is amended by revising paragraphs (a)(1) and (2) and
(b) to read as follows:

Sec.  63.2233  When do I have to comply with this subpart?

    (a) * * *
    (1) If the initial startup of your affected source is before
September 28, 2004, then you must comply with the compliance options,
operating requirements, and work practice requirements for new and
reconstructed sources in this subpart no later than September 28, 2004,
except as otherwise specified in Sec. Sec.  63.2250, 63.2280(b) and
(d), 63.2281(b)(6), and 63.2282(a)(2) and Tables 3, 6, 7, 8, 9, and 10
to this subpart.
    (2) If the initial startup of your affected source is after
September 28, 2004, then you must comply with the compliance options,
operating requirements, and work practice requirements for new and
reconstructed sources in this subpart upon initial startup of your
affected source, except as otherwise specified in Sec. Sec.  63.2250,
63.2280(b) and (d), 63.2281(b)(6), and 63.2282(a)(2) and Tables 3, 6,
7, 8, 9, and 10 to this subpart.
    (b) If you have an existing affected source, you must comply with
the compliance options, operating requirements, and work practice
requirements for existing sources no later than October 1, 2007, except
as otherwise specified in Sec. Sec.  63.2240(c)(2)(vi)(A), 63.2250,
63.2280(b) and (d), 63.2281(b)(6) and (c)(4), and 63.2282(a)(2) and
Tables 3, 6, 7, 8, 9, and 10 to this subpart.
* * * * *

0
4. Section 63.2240 is amended by revising paragraph (c)(2)(vi)(A) to
read as follows:

Sec.  63.2240  What are the compliance options and operating
requirements and how must I meet them?

* * * * *
    (c) * * *
    (2) * * *
    (vi) * * *
    (A) Before August 13, 2021, emissions during periods of startup,
shutdown, and malfunction as described in the startup, shutdown, and
malfunction plan (SSMP). On and after August 13, 2021, emissions during
safety-related shutdowns, pressurized refiner startups and shutdowns,
or startup and shutdown of direct-fired softwood veneer dryer gas-fired
burners.
* * * * *

0
5. Section 63.2250 is amended by:
0
a. Adding two sentences to the end of paragraph (a);
0
b. Revising paragraphs (b) and (c); and
0
c. Adding paragraphs (e) through (g).
    The revisions and additions read as follows:

Sec.  63.2250  What are the general requirements?

    (a) * * * For any affected source that commences construction or
reconstruction after September 6, 2019, this paragraph (a) does not
apply on and after August 13, 2020 or initial startup of the affected
source, whichever is later. For all other affected sources, this
paragraph (a) does not apply on and after August 13, 2021.
    (b) You must always operate and maintain your affected source,
including air pollution control and monitoring equipment according to
the provisions in Sec.  63.6(e)(1)(i). For any affected source that
commences construction or reconstruction after September 6, 2019, this
paragraph (b) does not apply on and after August 13, 2020 or initial
startup of the affected source, whichever is later. For all other
affected sources, this paragraph (b) does not apply on and after August
13, 2021.
    (c) You must develop a written SSMP according to the provisions in
Sec.  63.6(e)(3). For any affected source that commences construction
or reconstruction after September 6, 2019, this paragraph (c) does not
apply on and after August 13, 2020 or initial startup of the affected
source, whichever is later. For all other affected sources, this
paragraph (c) does not apply on and after August 13, 2021.
* * * * *
    (e) You must be in compliance with the provisions of subpart A of
this part, except as noted in Table 10 to this subpart.
    (f) Upon August 13, 2020 or initial startup of the affected source,
whichever is later, for affected sources that commenced construction or
reconstruction after September 6, 2019, and on and after August 13,
2021 for all other affected sources, you must be in compliance with the
compliance options, operating requirements, and the work practice
requirements in this subpart when the process unit(s) subject to the
compliance options, operating requirements, and work practice
requirements are operating, except as specified in paragraphs (f)(1)
through (6) of this section.
    (1) Prior to process unit initial startup.
    (2) During safety-related shutdowns conducted according to the work
practice requirement in Table 3 to this subpart.
    (3) During pressurized refiner startup and shutdown according to
the work practice requirement in Table 3 to this subpart.
    (4) During startup and shutdown of direct-fired softwood veneer
dryer gas-fired burners according to the work practice requirement in
Table 3 to this subpart.
    (5) You must minimize the length of time when compliance options
and operating requirements in this subpart are not met due to the
conditions in paragraphs (f)(2) and (4) of this section.
    (6) The applicable standard during each of the operating conditions
specified in paragraphs (f)(2) through (4) of this section are the work
practice requirements in Table 3 to this subpart for safety-related
shutdowns (row 6), pressurized refiner startup and shutdown (row 7),
and direct-fired softwood veneer dryers undergoing startup or shutdown
of gas-fired burners (row 8). The otherwise applicable compliance
options, operating requirements, and work practice requirements (in
rows 1 through 5 of Table 3 to this subpart) do not apply during the
operating conditions specified in paragraphs (f)(2) through (4) of this
section.
    (g) For affected sources that commenced construction or
reconstruction after September 6, 2019, and for all other affected
sources on and after August 13, 2021, you must always operate and
maintain your affected source, including air pollution control and
monitoring equipment in a manner consistent with good air pollution
control practices for minimizing emissions at least to the levels
required by this subpart. The general duty to minimize emissions does
not require you to make any further efforts to reduce emissions if
levels required by the applicable standard have been achieved.
Determination of whether a source is operating in compliance with
operation and maintenance requirements 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.

0
6. Section 63.2252 is revised to read as follows:

Sec.  63.2252  What are the requirements for process units that have no
control or work practice requirements?

    For process units not subject to the compliance options or work
practice requirements specified in Sec.  63.2240 (including, but not
limited to, lumber kilns), you are not required to comply with the
compliance options, work practice requirements, performance testing,
monitoring, and recordkeeping or reporting requirements of this
subpart, or any other requirements in subpart A of this part, except
for the initial notification requirements in Sec.  63.9(b).

0
7. Section 63.2262 is amended by revising paragraphs (a), (b), (m)(1),
and (n)(1) to read as follows:

Sec.  63.2262  How do I conduct performance tests and establish
operating requirements?

    (a) Testing procedures. You must conduct each performance test
according to the requirements in paragraphs (b) through (o) of this
section and according to the methods specified in Table 4 to this
subpart.
    (b) Periods when performance tests must be conducted. You must
conduct each performance test based on representative performance
(i.e., performance based on representative operating conditions as
defined in Sec.  63.2292) of the affected source for the period being
tested. Representative conditions exclude periods of startup and
shutdown. You may not conduct performance tests during periods of
malfunction. You must describe representative operating conditions in
your performance test report for the process and control systems and
explain why they are representative. You must record the process
information that is necessary to document operating conditions during
the test and include in such record an explanation to support that such
conditions are representative. Upon request, you shall make available
to the Administrator such records as may be necessary to determine the
conditions of performance tests.
* * * * *
    (m) * * *
    (1) During the performance test, you must continuously monitor the
biofilter bed temperature during each of the required 1-hour test runs.
To monitor biofilter bed temperature, you may use multiple
thermocouples in representative locations throughout the biofilter bed
and calculate the average biofilter bed temperature across these
thermocouples prior to reducing the temperature data to 15-minute
averages for purposes of establishing biofilter bed temperature limits.
The biofilter bed temperature range must be established as the
temperature values 10 percent below the minimum and 10 percent (not to
exceed 8[deg] F) above the maximum 15-minute biofilter bed temperatures
monitored during the three test runs. You may base your biofilter bed
temperature range on values recorded during previous performance tests
provided that the data used to establish the temperature ranges have
been obtained using the test methods required in this subpart. If you
use data from previous performance tests, you must certify that the
biofilter and associated process unit(s) have not been modified
subsequent to the date of the performance tests. Replacement of the
biofilter media with the same type of material is not considered a
modification of the biofilter for purposes of this section.
* * * * *
    (n) * * *
    (1) During the performance test, you must identify and document the
process unit controlling parameter(s) that affect total HAP emissions
during the three-run performance test. The controlling parameters you
identify must coincide with the representative operating conditions you
describe according to paragraph (b) of this section. For each
parameter, you must specify appropriate monitoring methods, monitoring
frequencies, and for continuously monitored parameters, averaging times
not to exceed 24 hours. The operating limit for each controlling
parameter must then be established as the minimum, maximum, range, or
average (as appropriate depending on the parameter) recorded during the
performance test. Multiple three-run performance tests may be conducted
to establish a range of parameter values under different operating
conditions.
* * * * *

0
8. Section 63.2269 is amended by revising paragraphs (b)(4) and (5) to
read as follows:

Sec.  63.2269  What are my monitoring installation, operation, and
maintenance requirements?

* * * * *
    (b) * * *
    (4) Validate the temperature sensor's reading at least semiannually
using the requirements of paragraph (b)(4)(i), (ii), (iii), (iv), or
(v) of this section:
    (i) Compare measured readings to a National Institute of Standards
and Technology (NIST) traceable temperature measurement device or
simulate a typical operating temperature using a NIST traceable
temperature simulation device. When the temperature measurement device
method is used, the sensor of the NIST traceable calibrated device must
be placed as close as practicable to the process sensor, and both
devices must be subjected to the same environmental conditions. The
accuracy of the temperature measured must be 2.5 percent of the
temperature measured by the NIST traceable device or 5 [deg]F,
whichever is greater.
    (ii) Follow applicable procedures in the thermocouple manufacturer
owner's manual.
    (iii) Request thermocouple manufacturer to certify or re-certify
electromotive force (electrical properties) of the thermocouple.
    (iv) Replace thermocouple with a new certified thermocouple in lieu
of validation.
    (v) Permanently install a redundant temperature sensor as close as
practicable to the process temperature sensor. The sensors must yield a
reading within 30 [deg]F of each other for thermal oxidizers and
catalytic oxidizers; within 5 [deg]F of each other for biofilters; and
within 20 [deg]F of each other for dry rotary dryers.
    (5) Conduct validation checks using the procedures in paragraph
(b)(4) of this section any time the sensor exceeds the manufacturer's
specified maximum operating temperature range or install a new
temperature sensor.
* * * * *

0
9. Section 63.2270 is amended by revising paragraph (c) to read as
follows:

Sec.  63.2270  How do I monitor and collect data to demonstrate
continuous compliance?

* * * * *
    (c) You may not use data recorded during monitoring malfunctions,
associated repairs, and required quality assurance or control
activities or data recorded during periods of safety-related shutdown,
pressurized refiner startup or shutdown, startup and shutdown of
direct-fired softwood veneer dryer gas-fired burners, or control device
downtime covered in any approved routine control device maintenance
exemption in data averages and calculations used to report emission or
operating levels, nor may such data be used in fulfilling a minimum
data availability requirement, if applicable. You must use all the data
collected during all other periods in assessing the operation of the
control system.
* * * * *

0
10. Section 63.2271 is amended by:
0
a. Revising paragraph (b) introductory text;

0
b. Removing and reserving paragraph (b)(2); and
0
c. Adding paragraph (b)(4).
    The revisions and additions read as follows:

Sec.  63.2271   How do I demonstrate continuous compliance with the
compliance options, operating requirements, and work practice
requirements?

* * * * *
    (b) You must report each instance in which you did not meet each
compliance option, operating requirement, and work practice requirement
in Tables 7 and 8 to this subpart that applies to you. This includes
periods of startup, shutdown, and malfunction and periods of control
device maintenance specified in paragraphs (b)(1) through (4) of this
section. These instances are deviations from the compliance options,
operating requirements, and work practice requirements in this subpart.
These deviations must be reported according to the requirements in
Sec.  63.2281.
* * * * *
    (4) Instances of safety-related shutdown, pressurized refiner
startup and shutdown, and startup and shutdown of direct-fired softwood
veneer dryer gas-fired burners subject to the work practice
requirements in Table 3 to this subpart (rows 6 through 8) must be
reported as required in Sec.  63.2281(c)(4). Instances when the work
practice requirements in Table 3 to this subpart (rows 6 through 8) are
used are not considered to be deviations from (or violations of) the
otherwise applicable compliance options, operating requirements and
work practice requirements (in rows 1 through 5 of Table 3 to this
subpart) as long as you do not exceed the minimum amount of time
necessary for these events.

0
11. Section 63.2280 is amended by revising paragraphs (b), (d)
introductory text, and (d)(2) to read as follows:

Sec.  63.2280  What notifications must I submit and when?

* * * * *
    (b) You must submit an Initial Notification no later than 120
calendar days after September 28, 2004, or after initial startup,
whichever is later, as specified in Sec.  63.9(b)(2). Initial
Notifications required to be submitted after August 13, 2020 for
affected sources that commence construction or reconstruction after
September 6, 2019, and on and after August 13, 2021 for all other
affected sources submitting initial notifications required in Sec.
63.9(b) must be submitted following the procedure specified in Sec.
63.2281(h), (k), and (l).
* * * * *
    (d) If you are required to conduct a performance test, design
evaluation, or other compliance demonstration as specified in Tables 4,
5, and 6 to this subpart, or a repeat performance test as specified in
Table 7 to this subpart, you must submit a Notification of Compliance
Status as specified in Sec.  63.9(h)(2)(ii). After August 13, 2020 for
affected sources that commence construction or reconstruction after
September 6, 2019, and on and after August 13, 2021 for all other
affected sources, submit all subsequent Notifications of Compliance
Status following the procedure specified in Sec.  63.2281(h), (k), and
(l).
* * * * *
    (2) For each compliance demonstration required in Tables 5, 6, and
7 to this subpart that includes a performance test conducted according
to the requirements in Table 4 to this subpart, you must submit the
Notification of Compliance Status, including a summary of the
performance test results, before the close of business on the 60th
calendar day following the completion of the performance test.
* * * * *

0
12. Section 63.2281 is amended by:
0
a. Revising paragraph (b) introductory text;
0
b. Adding paragraph (b)(6);
0
c. Revising paragraph (c)(4);
0
d. Removing and reserving paragraph (c)(6);
0
e. Revising paragraph (d)(2);
0
f. Revising the first sentence of paragraph (e) introductory text;
0
g. Removing and reserving paragraph (e)(1);
0
h. Revising paragraph (e)(2);
0
i. Adding paragraphs (e)(12) and (13); and
0
j. Adding paragraphs (h) through (l).
    The revisions and additions read as follows:

Sec.  63.2281  What reports must I submit and when?

* * * * *
    (b) Unless the EPA Administrator has approved a different schedule
for submission of reports under Sec.  63.10(a), you must submit each
report by the date in Table 9 to this subpart and as specified in
paragraphs (b)(1) through (6) of this section.
* * * * *
    (6) After August 13, 2020 for affected sources that commenced
construction or reconstruction after September 6, 2019, and on and
after August 13, 2021 for all other affected sources, submit all
subsequent reports following the procedure specified in paragraphs (h),
(k) and (l) of this section.
    (c) * * *
    (4) If you had a startup, shutdown, or malfunction during the
reporting period and you took actions consistent with your SSMP, the
compliance report must include the information specified in Sec.
63.10(d)(5)(i) before August 13, 2021 for affected sources that
commenced construction or reconstruction before September 6, 2019.
After August 13, 2020 for affected sources that commenced construction
or reconstruction after September 6, 2019, and on and after August 13,
2021 for all other affected sources, the compliance report must include
the number of instances and total amount of time during the reporting
period in which each of the startup/shutdown work practice requirements
in Table 3 to this subpart (rows 6 through 8) is used in place of the
otherwise applicable compliance options, operating requirements, and
work practice requirements (in Table 3 to this subpart rows 1 through
5). If a startup/shutdown work practice in Table 3 to this subpart
(rows 6 through 8) is used for more than a total of 100 hours during
the semiannual reporting period, you must report the date, time and
duration of each instance when that startup/shutdown work practice was
used.
* * * * *
    (d) * * *
    (2) Information on the date, time, duration, and cause of
deviations (including unknown cause, if applicable), as applicable, and
the corrective action taken.
    (e) For each deviation from a compliance option, operating
requirement, or work practice requirement occurring at an affected
source where you are using a CMS to comply with the compliance options,
operating requirements, or work practice requirements in this subpart,
you must include the information in paragraphs (c)(1) through (6) and
(e)(1) through (13) of this section. * * *
* * * * *
    (2) The date, time, and duration that each CMS was inoperative,
except for zero (low-level) and high-level checks.
* * * * *
    (12) For any failure to meet a compliance option in Sec.  63.2240,
including the compliance options in Table 1A or 1B to this subpart or
the emissions averaging compliance option, provide an estimate of the
quantity of each regulated pollutant emitted over any emission limit,
and a description of

the method used to estimate the emissions.
    (13) The total operating time of each affected source during the
reporting period.
* * * * *
    (h) If you are required to submit reports following the procedure
specified in this paragraph (h), you must submit reports to the EPA via
the Compliance and Emissions Data Reporting Interface (CEDRI), which
can be accessed through the EPA's Central Data Exchange (CDX) (https://cdx.epa.gov/). The EPA will make all the information submitted through
CEDRI available to the public without further notice to you. Do not use
CEDRI to submit information you claim as confidential business
information (CBI). Anything submitted using CEDRI cannot later be
claimed to be CBI. For semiannual compliance reports required in this
section and Table 9 (row 1) to this subpart, you must use the
appropriate electronic report template on the CEDRI website (https://www.epa.gov/electronic-reporting-air-emissions/compliance-and-emissions-data-reporting-interface-cedri) for this subpart once the
reporting template has been available on the CEDRI website for 1 year.
The date report templates become available will be listed on the CEDRI
website. If the reporting form for the semiannual compliance report
specific to this subpart is not available in CEDRI at the time that the
report is due, you must submit the report to the Administrator at the
appropriate addresses listed in Sec.  63.13. You must begin submitting
all subsequent reports via CEDRI in the first full reporting period
after the report template for this subpart has been available in CEDRI
for 1 year. Initial Notifications developed according to Sec.
63.2280(b) and Notifications of Compliance Status developed according
to Sec.  63.2280(d) may be uploaded in a user-specified format such as
portable document format (PDF). The report must be submitted by the
deadline specified in this subpart, regardless of the method in which
the report is submitted. Although we do not expect persons to assert a
claim of CBI, if persons wish to assert a CBI claim, submit a complete
report, including information claimed to be CBI, to the EPA. The report
must be generated using the appropriate form on the CEDRI website.
Submit the file on a compact disc, flash drive, or other commonly used
electronic storage medium and clearly mark the medium as CBI. Mail the
electronic medium to U.S. EPA/OAQPS/CORE CBI Office, Attention: Group
Leader, Measurement Policy Group, MD C404-02, 4930 Old Page Rd.,
Durham, NC 27703. The same file with the CBI omitted must be submitted
to the EPA via the EPA's CDX. All CBI claims must be asserted at the
time of submission. Furthermore, under CAA section 114(c) emissions
data is not entitled to confidential treatment and requires EPA to make
emissions data available to the public. Thus, emissions data will not
be protected as CBI and will be made publicly available.
    (i) Within 60 days after the date of completing each performance
test required by this subpart, you must submit the results of the
performance test following the procedures specified in paragraphs
(i)(1) through (3) of this section.
    (1) Data collected using test methods supported by the EPA's
Electronic Reporting Tool (ERT) as listed on the EPA's ERT website
(https://www.epa.gov/electronic-reporting-air-emissions/electronic-reporting-tool-ert) at the time of the test. Submit the results of the
performance test to the EPA via CEDRI, which can be accessed through
the EPA's CDX (https://cdx.epa.gov/). The data must be submitted in a
file format generated through the use of the EPA's ERT. Alternatively,
you may submit an electronic file consistent with the extensible markup
language (XML) schema listed on the EPA's ERT website.
    (2) Data collected using test methods that are not supported by the
EPA's ERT as listed on the EPA's ERT website at the time of the test.
The results of the performance test must be included as an attachment
in the ERT or an alternate electronic file consistent with the XML
schema listed on the EPA's ERT website. Submit the ERT generated
package or alternative file to the EPA via CEDRI.
    (3) Confidential Business Information (CBI). The EPA will make all
the information submitted through CEDRI available to the public without
further notice to you. Do not use CEDRI to submit information you claim
as CBI. Anything submitted using CEDRI cannot later be claimed to be
CBI. Although we do not expect persons to assert a claim of CBI, if you
claim some of the information submitted under this paragraph (i) is
CBI, you must submit a complete file, including information claimed to
be CBI, to the EPA. The file must be generated through the use of the
EPA's ERT or an alternate electronic file consistent with the XML
schema listed on the EPA's ERT website. Submit the file on a compact
disc, flash drive, or other commonly used electronic storage medium and
clearly mark the medium as CBI. Mail the electronic medium to U.S. EPA/
OAQPS/CORE CBI Office, Attention: Group Leader, Measurement Policy
Group, MD C404-02, 4930 Old Page Rd., Durham, NC 27703. The same file
with the CBI omitted must be submitted to the EPA via the EPA's CDX as
described in this paragraph (i). All CBI claims must be asserted at the
time of submission. Furthermore, under CAA section 114(c) emissions
data is not entitled to confidential treatment and requires EPA to make
emissions data available to the public. Thus, emissions data will not
be protected as CBI and will be made publicly available.
    (j) Within 60 days after the date of completing each continuous
monitoring system (CMS) performance evaluation (as defined in Sec.
63.2), you must submit the results of the performance evaluation
following the procedures specified in paragraphs (j)(1) through (3) of
this section.
    (1) Performance evaluations of CMS measuring relative accuracy test
audit (RATA) pollutants that are supported by the EPA's ERT as listed
on the EPA's ERT website at the time of the evaluation. Submit the
results of the performance evaluation to the EPA via CEDRI, which can
be accessed through the EPA's CDX. The data must be submitted in a file
format generated through the use of the EPA's ERT. Alternatively, you
may submit an electronic file consistent with the XML schema listed on
the EPA's ERT website.
    (2) Performance evaluations of CMS measuring RATA pollutants that
are not supported by the EPA's ERT as listed on the EPA's ERT website
at the time of the evaluation. The results of the performance
evaluation must be included as an attachment in the ERT or an alternate
electronic file consistent with the XML schema listed on the EPA's ERT
website. Submit the ERT generated package or alternative file to the
EPA via CEDRI.
    (3) Confidential Business Information (CBI). The EPA will make all
the information submitted through CEDRI available to the public without
further notice to you. Do not use CEDRI to submit information you claim
as CBI. Anything submitted using CEDRI cannot later be claimed to be
CBI. Although we do not expect persons to assert a claim of CBI, if you
claim some of the information submitted under this paragraph (j) is
CBI, you must submit a complete file, including information claimed to
be CBI, to the EPA. The file must be generated through the use of the
EPA's ERT or an alternate electronic file consistent with the XML
schema listed on the EPA's ERT website. Submit the

file on a compact disc, flash drive, or other commonly used electronic
storage medium and clearly mark the medium as CBI. Mail the electronic
medium to U.S. EPA/OAQPS/CORE CBI Office, Attention: Group Leader,
Measurement Policy Group, MD C404-02, 4930 Old Page Rd., Durham, NC
27703. The same file with the CBI omitted must be submitted to the EPA
via the EPA's CDX as described in this paragraph (j). All CBI claims
must be asserted at the time of submission. Furthermore, under CAA
section 114(c) emissions data is not entitled to confidential treatment
and requires EPA to make emissions data available to the public. Thus,
emissions data will not be protected as CBI and will be made publicly
available.
    (k) If you are required to electronically submit a report or
notification through CEDRI in the EPA's CDX by this subpart, you may
assert a claim of EPA system outage for failure to timely comply with
the electronic submittal reporting requirement in this section. To
assert a claim of EPA system outage, you must meet the requirements
outlined in paragraphs (k)(1) through (7) of this section.
    (1) You must have been or will be precluded from accessing CEDRI
and submitting a required report within the time prescribed due to an
outage of either the EPA's CEDRI or CDX systems.
    (2) The outage must have occurred within the period of time
beginning 5 business days prior to the date that the submission is due.
    (3) The outage may be planned or unplanned.
    (4) You must submit notification to the Administrator in writing as
soon as possible following the date you first knew, or through due
diligence should have known, that the event may cause or has caused a
delay in reporting.
    (5) You must provide to the Administrator a written description
identifying:
    (i) The date(s) and time(s) when CDX or CEDRI was accessed and the
system was unavailable;
    (ii) A rationale for attributing the delay in reporting beyond the
regulatory deadline to EPA system outage;
    (iii) Measures taken or to be taken to minimize the delay in
reporting; and
    (iv) The date by which you propose to report, or if you have
already met the electronic submittal requirement in this subpart at the
time of the notification, the date you submitted the report.
    (6) The decision to accept the claim of EPA system outage and allow
an extension to the reporting deadline is solely within the discretion
of the Administrator.
    (7) In any circumstance, the report must be submitted
electronically as soon as possible after the outage is resolved.
    (l) If you are required to electronically submit a report through
CEDRI in the EPA's CDX by this subpart, you may assert a claim of force
majeure for failure to timely comply with the electronic submittal
requirement in this section. To assert a claim of force majeure, you
must meet the requirements outlined in paragraphs (l)(1) through (5) of
this section.
    (1) You may submit a claim if a force majeure event is about to
occur, occurs, or has occurred or there are lingering effects from such
an event within the period of time beginning five business days prior
to the date the submission is due. For the purposes of this section, a
force majeure event is defined as an event that will be or has been
caused by circumstances beyond the control of the affected facility,
its contractors, or any entity controlled by the affected facility that
prevents you from complying with the requirement to submit a report
electronically within the time period prescribed. Examples of such
events are acts of nature (e.g., hurricanes, earthquakes, or floods),
acts of war or terrorism, or equipment failure or safety hazard beyond
the control of the affected facility (e.g., large scale power outage).
    (2) You must submit notification to the Administrator in writing as
soon as possible following the date you first knew, or through due
diligence should have known, that the event may cause or has caused a
delay in reporting.
    (3) You must provide to the Administrator:
    (i) A written description of the force majeure event;
    (ii) A rationale for attributing the delay in reporting beyond the
regulatory deadline to the force majeure event;
    (iii) Measures taken or to be taken to minimize the delay in
reporting; and
    (iv) The date by which you propose to report, or if you have
already met the electronic submittal requirement in this subpart at the
time of the notification, the date you submitted the report.
    (4) The decision to accept the claim of force majeure and allow an
extension to the reporting deadline is solely within the discretion of
the Administrator.
    (5) In any circumstance, the reporting must occur as soon as
possible after the force majeure event occurs.

0
13. Section 63.2282 is amended by revising paragraphs (a)(2) and (c)(2)
and adding paragraph (f) to read as follows:

Sec.  63.2282  What records must I keep?

    (a) * * *
    (2) Before August 13, 2021, the records in Sec.  63.6(e)(3)(iii)
through (v) related to startup, shutdown, and malfunction for affected
sources that commenced construction or reconstruction before September
6, 2019. After August 13, 2021] for affected sources that commenced
construction or reconstruction after September 6, 2019, and on and
after August 13, 2021 for all other affected sources, the records
related to startup and shutdown, failures to meet the standard, and
actions taken to minimize emissions, specified in paragraphs (a)(2)(i)
through (iv) of this section.
    (i) Record the date, time, and duration of each startup and/or
shutdown period, including the periods when the affected source was
subject to the standard applicable to startup and shutdown.
    (ii) In the event that an affected unit fails to meet an applicable
standard, record the number of failures; for each failure, record the
date, time, cause and duration of each failure.
    (iii) For each failure to meet an applicable standard, record and
retain a list of the affected sources or equipment, and the following
information:
    (A) For any failure to meet a compliance option in Sec.  63.2240,
including the compliance options in Table 1A or 1B to this subpart or
the emissions averaging compliance option, record an estimate of the
quantity of each regulated pollutant emitted over any emission limit
and a description of the method used to estimate the emissions.
    (B) For each failure to meet an operating requirement in Table 2 to
this subpart or work practice requirement in Table 3 to this subpart,
maintain sufficient information to estimate the quantity of each
regulated pollutant emitted over the emission limit. This information
must be sufficient to provide a reliable emissions estimate if
requested by the Administrator.
    (iv) Record actions taken to minimize emissions in accordance with
Sec.  63.2250(g), and any corrective actions taken to return the
affected unit to its normal or usual manner of operation.
* * * * *
    (c) * * *
    (2) Previous (i.e., superseded) versions of the performance
evaluation plan, with the program of corrective action included in the
plan required under Sec.  63.8(d)(2).
* * * * *
    (f) You must keep the written CMS quality control procedures
required by Sec.  63.8(d)(2) on record for the life of the

affected source or until the affected source is no longer subject to
the provisions of this subpart, to be made available for inspection,
upon request, by the Administrator. If the performance evaluation plan
is revised, you must keep previous (i.e., superseded) versions of the
performance evaluation plan on record to be made available for
inspection, upon request, by the Administrator, for a period of 5 years
after each revision to the plan. The program of corrective action
should be included in the plan required under Sec.  63.8(d)(2).

0
14. Section 63.2283 is amended by adding paragraph (d) to read as
follows:

Sec.  63.2283  In what form and how long must I keep my records?

* * * * *
    (d) Any records required to be maintained by this part that are
submitted electronically via the EPA's CEDRI may be maintained in
electronic format. This ability to maintain electronic copies does not
affect the requirement for facilities to make records, data, and
reports available upon request to a delegated air agency or the EPA as
part of an on-site compliance evaluation.

0
15. Section 63.2290 is revised to read as follows:

Sec.  63.2290  What parts of the general provisions apply to me?

    Table 10 to this subpart shows which parts of the general
provisions in Sec. Sec.  63.1 through 63.16 apply to you.

0
16. Section 63.2291 is amended by revising paragraph (c) introductory
text and adding paragraph (c)(5) to read as follows:

Sec.  63.2291  Who implements and enforces this subpart?

* * * * *
    (c) The authorities that will not be delegated to State, local, or
tribal agencies are listed in paragraphs (c)(1) through (5) of this
section.
* * * * *
    (5) Approval of an alternative to any electronic reporting to the
EPA required by this subpart.

0
17. Section 63.2292 is amended by:
0
a. Revising the definitions of ``MSF,'' ``Non-HAP coating,'' and
``Representative operating conditions'';
0
b. Adding the definition of ``Safety-related shutdown'' in alphabetical
order; and
0
c. Removing the definition of ``Startup, shutdown, and malfunction
plan.''
    The revisions and addition read as follows:

Sec.  63.2292  What definitions apply to this subpart?

* * * * *
    MSF means thousand square feet (92.9 square meters). Square footage
of panels is usually measured on a thickness basis, such as \3/8\-inch,
to define the total volume of panels. Equation 3 of Sec.  63.2262(j)
shows how to convert from one thickness basis to another.
* * * * *
    Non-HAP coating means a coating with HAP contents below 0.1 percent
by mass for Occupational Safety and Health Administration-defined
carcinogens as specified in section A.6.4 of appendix A to 29 CFR
1910.1200, and below 1.0 percent by mass for other HAP compounds.
* * * * *
    Representative operating conditions means operation of a process
unit during performance testing under the conditions that the process
unit will typically be operating in the future, including use of a
representative range of materials (e.g., wood material of a typical
species mix and moisture content or typical resin formulation) and
representative operating temperature range. Representative operating
conditions exclude periods of startup and shutdown.
* * * * *
    Safety-related shutdown means an unscheduled shutdown of a process
unit subject to a compliance option in Table 1B to this subpart (or a
process unit with HAP control under an emissions averaging plan
developed according to Sec.  63.2240(c)) during which time emissions
from the process unit cannot be safely routed to the control system in
place to meet the compliance options or operating requirements in this
subpart without imminent danger to the process, control system, or
system operator.
* * * * *

0
18. Table 2 to subpart DDDD is revised to read as follows:

                           Table 2 to Subpart DDDD of Part 63--Operating Requirements
----------------------------------------------------------------------------------------------------------------
       If you operate a(n) . . .                     You must . . .                      Or you must . . .
----------------------------------------------------------------------------------------------------------------
(1) Thermal oxidizer..................  Maintain the 3-hour block average         Maintain the 3-hour block
                                         firebox temperature above the minimum     average THC concentration \1\
                                         temperature established during the        in the thermal oxidizer
                                         performance test.                         exhaust below the maximum
                                                                                concentration established
                                                                                during the performance test.
(2) Catalytic oxidizer................  Maintain the 3-hour block average         Maintain the 3-hour block
                                         catalytic oxidizer temperature above      average THC concentration \1\
                                         the minimum temperature established       in the catalytic oxidizer
                                         during the performance test; AND check    exhaust below the maximum
                                         the activity level of a representative    concentration established
                                         sample of the catalyst annually except    during the performance test.
                                         as specified in footnote ``2'' to this
                                         table.
(3) Biofilter.........................  Maintain the 24-hour block biofilter bed  Maintain the 24-hour block
                                         temperature within the range              average THC concentration \1\
                                         established according to Sec.             in the biofilter exhaust
                                         63.2262(m).                               below the maximum
                                                                                concentration established
                                                                                during the performance test.
(4) Control device other than a         Petition the EPA Administrator for site-  Maintain the 3-hour block
 thermal oxidizer, catalytic oxidizer,   specific operating parameter(s) to be     average THC concentration \1\
 or biofilter.                           established during the performance test   in the control device exhaust
                                         and maintain the average operating        below the maximum
                                         parameter(s) within the range(s)          concentration established
                                         established during the performance test.  during the performance test.

(5) Process unit that meets a           Maintain on a daily basis the process     Maintain the 3-hour block
 compliance option in Table 1A to this   unit controlling operating parameter(s)   average THC concentration \1\
 subpart, or a process unit that         within the ranges established during      in the process unit exhaust
 generates debits in an emissions        the performance test according to Sec.    below the maximum
 average without the use of a control     63.2262(n).                              concentration established
 device.                                                                           during the performance test.
----------------------------------------------------------------------------------------------------------------
\1\ You may choose to subtract methane from THC measurements.
\2\ You may forego the annual catalyst activity check during the calendar year when a performance test is
  conducted according to Table 4 to this subpart.

0
19. Table 3 to subpart DDDD is revised to read as follows:

     Table 3 to Subpart DDDD of Part 63--Work Practice Requirements
------------------------------------------------------------------------
  For the following process
   units at existing or new                  You must . . .
    affected sources . . .
------------------------------------------------------------------------
(1) Dry rotary dryers........  Process furnish with a 24-hour block
                                average inlet moisture content of less
                                than or equal to 30 percent (by weight,
                                dry basis); AND operate with a 24-hour
                                block average inlet dryer temperature of
                                less than or equal to 600 [deg]F.
(2) Hardwood veneer dryers...  Process less than 30 volume percent
                                softwood species on an annual basis.
(3) Softwood veneer dryers...  Minimize fugitive emissions from the
                                dryer doors through (proper maintenance
                                procedures) and the green end of the
                                dryers (through proper balancing of the
                                heated zone exhausts).
(4) Veneer redryers..........  Process veneer that has been previously
                                dried, such that the 24-hour block
                                average inlet moisture content of the
                                veneer is less than or equal to 25
                                percent (by weight, dry basis).
(5) Group 1 miscellaneous      Use non-HAP coatings as defined in Sec.
 coating operations.            63.2292.
(6) Process units and control  Follow documented site-specific
 systems undergoing safety-     procedures such as use of automated
 related shutdown on and        controls or other measures that you have
 after August 13, 2021 except   developed to protect workers and
 as noted in footnote ``1''     equipment to ensure that the flow of raw
 to this table.                 materials (such as furnish or resin) and
                                fuel or process heat (as applicable)
                                ceases and that material is removed from
                                the process unit(s) as expeditiously as
                                possible given the system design to
                                reduce air emissions.
(7) Pressurized refiners       Route exhaust gases from the pressurized
 undergoing startup or          refiner to its dryer control system no
 shutdown on and after August   later than 15 minutes after wood is fed
 13, 2021 except as noted in    to the pressurized refiner during
 footnote ``1'' to this table.  startup. Stop wood flow into the
                                pressurized refiner no more than 15
                                minutes after wood fiber and exhaust
                                gases from the pressurized refiner stop
                                being routed to the dryer during
                                shutdown.
(8) Direct-fired softwood      Cease feeding green veneer into the
 veneer dryers undergoing       softwood veneer dryer and minimize the
 startup or shutdown of gas-    amount of time direct gas-fired softwood
 fired burners on and after     veneer dryers are vented to the
 August 13, 2021 except as      atmosphere due to the conditions
 noted in footnote ``1'' to     described in Sec.   63.2250(d).
 this table.
------------------------------------------------------------------------
\1\ New or reconstructed affected sources that commenced construction or
  reconstruction after September 6, 2019 must comply with this
  requirement beginning on August 13, 2020 or upon initial startup,
  whichever is later.

0
20. Table 4 to subpart DDDD is revised to read as follows:

 Table 4 to Subpart DDDD of Part 63--Requirements for Performance Tests
------------------------------------------------------------------------
           For . . .              You must . . .        Using . . .
------------------------------------------------------------------------
(1) each process unit subject   select sampling    Method 1 or 1A of 40
 to a compliance option in       port's location    CFR part 60,
 table 1A or 1B to this          and the number     appendix A-1 (as
 subpart or used in              of traverse        appropriate).
 calculation of an emissions     ports.
 average under Sec.
 63.2240(c).
(2) each process unit subject   determine          Method 2 in addition
 to a compliance option in       velocity and       to Method 2A, 2C,
 table 1A or 1B to this          volumetric flow    2D, 2F, or 2G in
 subpart or used in              rate.              appendices A-1 and A-
 calculation of an emissions                        2 to 40 CFR part 60
 average under Sec.                                 (as appropriate).
 63.2240(c).
(3) each process unit subject   conduct gas        Method 3, 3A, or 3B
 to a compliance option in       molecular weight   in appendix A-2 to
 table 1A or 1B to this          analysis.          40 CFR part 60 (as
 subpart or used in                                 appropriate).
 calculation of an emissions
 average under Sec.
 63.2240(c).
(4) each process unit subject   measure moisture   Method 4 in appendix
 to a compliance option in       content of the     A-3 to 40 CFR part
 table 1A or 1B to this          stack gas.         60; OR Method 320 in
 subpart or used in                                 appendix A to this
 calculation of an emissions                        part; OR ASTM D6348-
 average under Sec.                                 03 (IBR, see Sec.
 63.2240(c).                                        63.14).
(5) each process unit subject   measure emissions  Method 25A in
 to a compliance option in       of total HAP as    appendix A-7 to 40
 table 1B to this subpart for    THC.               CFR part 60. You may
 which you choose to                                measure emissions of
 demonstrate compliance using                       methane using EPA
 a total HAP as THC compliance                      Method 18 in
 option.                                            appendix A-6 to 40
                                                    CFR part 60 and
                                                    subtract the methane
                                                    emissions from the
                                                    emissions of total
                                                    HAP as THC.

(6) each process unit subject   measure emissions  Method 320 in
 to a compliance option in       of total HAP (as   appendix A to this
 table 1A to this subpart; OR    defined in Sec.    part; OR the NCASI
 for each process unit used in    63.2292).         Method IM/CAN/WP-
 calculation of an emissions                        99.02 (IBR, see Sec.
 average under Sec.                                   63.14); OR the
 63.2240(c).                                        NCASI Method ISS/FP-
                                                    A105.01 (IBR, see
                                                    Sec.   63.14); OR
                                                    ASTM D6348-03 (IBR,
                                                    see Sec.   63.14)
                                                    provided that
                                                    percent R as
                                                    determined in Annex
                                                    A5 of ASTM D6348-03
                                                    is equal or greater
                                                    than 70 percent and
                                                    less than or equal
                                                    to 130 percent.
(7) each process unit subject   measure emissions  Method 308 in
 to a compliance option in       of methanol.       appendix A to this
 table 1B to this subpart for                       part; OR Method 320
 which you choose to                                in appendix A to
 demonstrate compliance using                       this part; OR the
 a methanol compliance option.                      NCASI Method CI/WP-
                                                    98.01 (IBR, see Sec.
                                                      63.14); OR the
                                                    NCASI Method IM/CAN/
                                                    WP-99.02 (IBR, see
                                                    Sec.   63.14); OR
                                                    the NCASI Method ISS/
                                                    FP-A105.01 (IBR, see
                                                    Sec.   63.14).
(8) each process unit subject   measure emissions  Method 316 in
 to a compliance option in       of formaldehyde.   appendix A to this
 table 1B to this subpart for                       part; OR Method 320
 which you choose to                                in appendix A to
 demonstrate compliance using                       this part; OR Method
 a formaldehyde compliance                          0011 in ``Test
 option.                                            Methods for
                                                    Evaluating Solid
                                                    Waste, Physical/
                                                    Chemical Methods''
                                                    (EPA Publication No.
                                                    SW-846) for
                                                    formaldehyde (IBR,
                                                    see Sec.   63.14);
                                                    OR the NCASI Method
                                                    CI/WP-98.01 (IBR,
                                                    see Sec.   63.14);
                                                    OR the NCASI Method
                                                    IM/CAN/WP-99.02
                                                    (IBR, see Sec.
                                                    63.14); OR the NCASI
                                                    Method ISS/FP-
                                                    A105.01 (IBR, see
                                                    Sec.   63.14).
(9) each reconstituted wood     meet the design    Methods 204 and 204A
 product press at a new or       specifications     through 204F of 40
 existing affected source or     included in the    CFR part 51,
 reconstituted wood product      definition of      appendix M, to
 board cooler at a new           wood products      determine capture
 affected source subject to a    enclosure in       efficiency (except
 compliance option in table 1B   Sec.   63.2292;    for wood products
 to this subpart or used in      or determine the   enclosures as
 calculation of an emissions     percent capture    defined in Sec.
 average under Sec.              efficiency of      63.2292). Enclosures
 63.2240(c).                     the enclosure      that meet the
                                 directing          definition of wood
                                 emissions to an    products enclosure
                                 add-on control     or that meet Method
                                 device.            204 requirements for
                                                    a permanent total
                                                    enclosure (PTE) are
                                                    assumed to have a
                                                    capture efficiency
                                                    of 100 percent.
                                                    Enclosures that do
                                                    not meet either the
                                                    PTE requirements or
                                                    design criteria for
                                                    a wood products
                                                    enclosure must
                                                    determine the
                                                    capture efficiency
                                                    by constructing a
                                                    TTE according to the
                                                    requirements of
                                                    Method 204 and
                                                    applying Methods
                                                    204A through 204F
                                                    (as appropriate). As
                                                    an alternative to
                                                    Methods 204 and 204A
                                                    through 204F, you
                                                    may use the tracer
                                                    gas method contained
                                                    in appendix A to
                                                    this subpart.
(10) each reconstituted wood    determine the      a TTE and Methods 204
 product press at a new or       percent capture    and 204A through
 existing affected source or     efficiency.        204F (as
 reconstituted wood product                         appropriate) of 40
 board cooler at a new                              CFR part 51,
 affected source subject to a                       appendix M. As an
 compliance option in table 1A                      alternative to
 to this subpart.                                   installing a TTE and
                                                    using Methods 204
                                                    and 204A through
                                                    204F, you may use
                                                    the tracer gas
                                                    method contained in
                                                    appendix A to this
                                                    subpart. Enclosures
                                                    that meet the design
                                                    criteria (1) through
                                                    (4) in the
                                                    definition of wood
                                                    products enclosure,
                                                    or that meet Method
                                                    204 requirements for
                                                    a PTE (except for
                                                    the criteria
                                                    specified in section
                                                    6.2 of Method 204)
                                                    are assumed to have
                                                    a capture efficiency
                                                    of 100 percent.
                                                    Measured emissions
                                                    divided by the
                                                    capture efficiency
                                                    provides the
                                                    emission rate.
(11) each process unit subject  establish the      data from the
 to a compliance option in       site-specific      parameter monitoring
 tables 1A and 1B to this        operating          system or THC CEMS
 subpart or used in              requirements       and the applicable
 calculation of an emissions     (including the     performance test
 average under Sec.              parameter limits   method(s).
 63.2240(c).                     or THC
                                 concentration
                                 limits) in table
                                 2 to this
                                 subpart.
------------------------------------------------------------------------

0
21. Table 6 to subpart DDDD is revised to read as follows:

      Table 6 to Subpart DDDD of Part 63--Initial Compliance Demonstrations for Work Practice Requirements
----------------------------------------------------------------------------------------------------------------
                                        For the following work practice         You have demonstrated initial
           For each . . .                      requirements . . .                    compliance if . . .
----------------------------------------------------------------------------------------------------------------
(1) Dry rotary dryer...............  Process furnish with an inlet          You meet the work practice
                                      moisture content less than or equal    requirement AND you submit a signed
                                      to 30 percent (by weight, dry basis)   statement with the Notification of
                                      AND operate with an inlet dryer        Compliance Status that the dryer
                                      temperature of less than or equal to   meets the criteria of a ``dry
                                      600 [deg]F.                            rotary dryer'' AND you have a
                                                                             record of the inlet moisture
                                                                             content and inlet dryer temperature
                                                                             (as required in Sec.   63.2263).

(2) Hardwood veneer dryer..........  Process less than 30 volume percent    You meet the work practice
                                      softwood species.                      requirement AND you submit a signed
                                                                             statement with the Notification of
                                                                             Compliance Status that the dryer
                                                                             meets the criteria of a ``hardwood
                                                                             veneer dryer'' AND you have a
                                                                             record of the percentage of
                                                                             softwoods processed in the dryer
                                                                             (as required in Sec.   63.2264).
(3) Softwood veneer dryer..........  Minimize fugitive emissions from the   You meet the work practice
                                      dryer doors and the green end.         requirement AND you submit with the
                                                                             Notification of Compliance Status a
                                                                             copy of your plan for minimizing
                                                                             fugitive emissions from the veneer
                                                                             dryer heated zones (as required in
                                                                             Sec.   63.2265).
(4) Veneer redryers................  Process veneer with an inlet moisture  You meet the work practice
                                      content of less than or equal to 25    requirement AND you submit a signed
                                      percent (by weight, dry basis).        statement with the Notification of
                                                                             Compliance Status that the dryer
                                                                             operates only as a redryer AND you
                                                                             have a record of the veneer inlet
                                                                             moisture content of the veneer
                                                                             processed in the redryer (as
                                                                             required in Sec.   63.2266).
(5) Group 1 miscellaneous coating    Use non-HAP coatings as defined in     You meet the work practice
 operations.                          Sec.   63.2292.                        requirement AND you submit a signed
                                                                             statement with the Notification of
                                                                             Compliance Status that you are
                                                                             using non-HAP coatings AND you have
                                                                             a record showing that you are using
                                                                             non-HAP coatings.
(6) Process units and control        Follow documented site-specific        You meet the work practice
 systems undergoing safety-related    procedures to ensure the flow of raw   requirement AND you have a record
 shutdown on and after August 13,     materials and fuel or process heat     of safety-related shutdown
 2021, except as noted in footnote    ceases and that material is removed    procedures available for inspection
 ``1'' to this table.                 from the process unit(s) as            by the delegated authority upon
                                      expeditiously as possible given the    request.
                                      system design to reduce air
                                      emissions.
(7) Pressurized refiners undergoing  Route exhaust gases from the           You meet the work practice
 startup or shutdown on and after     pressurized refiner to its dryer       requirement AND you have a record
 August 13, 2021, except as noted     control system no later than 15        of pressurized refiner startup and
 in footnote ``1'' to this table.     minutes after wood is fed to the       shutdown procedures available for
                                      pressurized refiner during startup.    inspection by the delegated
                                      Stop wood flow into the pressurized    authority upon request.
                                      refiner no more than 15 minutes
                                      after wood fiber and exhaust gases
                                      from the pressurized refiner stop
                                      being routed to the dryer during
                                      shutdown.
(8) Direct-fired softwood veneer     Cease feeding green veneer into the    You meet the work practice
 dryers undergoing startup or         softwood veneer dryer and minimize     requirement AND you have a record
 shutdown of gas-fired burners on     the amount of time direct gas-fired    of the procedures for startup and
 and after August 13, 2021, except    softwood veneer dryers are vented to   shutdown of softwood veneer dryer
 as noted in footnote ``1'' to this   the atmosphere due to the conditions   gas-fired burners available for
 table.                               described in Sec.   63.2250(d).        inspection by the delegated
                                                                             authority upon request.
----------------------------------------------------------------------------------------------------------------
\1\ New or reconstructed affected sources that commenced construction or reconstruction after September 6, 2019
  must comply with this requirement beginning on August 13, 2020 or upon initial startup, whichever is later.

0
22. Table 7 to subpart DDDD is revised to read as follows:

Table 7 to Subpart DDDD of Part 63--Continuous Compliance With the Compliance Options and Operating Requirements
----------------------------------------------------------------------------------------------------------------
                                      For the following compliance options     You must demonstrate continuous
             For . . .                  and operating requirements . . .             compliance by . . .
----------------------------------------------------------------------------------------------------------------
(1) Each process unit listed in      Compliance options in Table 1B to      Collecting and recording the
 Table 1B to this subpart or used     this subpart or the emissions          operating parameter monitoring
 in calculation of an emissions       averaging compliance option in Sec.    system data listed in Table 2 to
 average under Sec.   63.2240(c).      63.2240(c) and the operating          this subpart for the process unit
                                      requirements in Table 2 to this        according to Sec.  Sec.
                                      subpart based on monitoring of         63.2269(a) through (b) and 63.2270;
                                      operating parameters.                  AND reducing the operating
                                                                             parameter monitoring system data to
                                                                             the specified averages in units of
                                                                             the applicable requirement
                                                                             according to calculations in Sec.
                                                                             63.2270; AND maintaining the
                                                                             average operating parameter at or
                                                                             above the minimum, at or below the
                                                                             maximum, or within the range
                                                                             (whichever applies) established
                                                                             according to Sec.   63.2262.

(2) Each process unit listed in      Compliance options in Tables 1A and    Collecting and recording the THC
 Tables 1A and 1B to this subpart     1B to this subpart or the emissions    monitoring data listed in Table 2
 or used in calculation of an         averaging compliance option in Sec.    to this subpart for the process
 emissions average under Sec.          63.2240(c) and the operating          unit according to Sec.
 63.2240(c).                          requirements in Table 2 to this        63.2269(d); AND reducing the CEMS
                                      subpart based on THC CEMS data.        data to 3-hour block averages
                                                                             according to calculations in Sec.
                                                                             63.2269(d); AND maintaining the 3-
                                                                             hour block average THC
                                                                             concentration in the exhaust gases
                                                                             less than or equal to the THC
                                                                             concentration established according
                                                                             to Sec.   63.2262.
(3) Each process unit using a        Compliance options in Tables 1B to     Conducting a repeat performance test
 biofilter.                           this subpart or the emissions          using the applicable method(s)
                                      averaging compliance option in Sec.    specified in Table 4 to this
                                       63.2240(c).                           subpart \1\ within 2 years
                                                                             following the previous performance
                                                                             test and within 180 days after each
                                                                             replacement of any portion of the
                                                                             biofilter bed media with a
                                                                             different type of media or each
                                                                             replacement of more than 50 percent
                                                                             (by volume) of the biofilter bed
                                                                             media with the same type of media.
(4) Each process unit using a        Compliance options in Table 1B to      Checking the activity level of a
 catalytic oxidizer.                  this subpart or the emissions          representative sample of the
                                      averaging compliance option in Sec.    catalyst at least annually \2\ and
                                       63.2240(c).                           taking any necessary corrective
                                                                             action to ensure that the catalyst
                                                                             is performing within its design
                                                                             range.
(5) Each process unit listed in      Compliance options in Table 1A to      Collecting and recording on a daily
 Table 1A to this subpart, or each    this subpart or the emissions          basis process unit controlling
 process unit without a control       averaging compliance option in Sec.    operating parameter data; AND
 device used in calculation of an      63.2240(c) and the operating          maintaining the operating parameter
 emissions averaging debit under      requirements in Table 2 to this        at or above the minimum, at or
 Sec.   63.2240(c).                   subpart based on monitoring of         below the maximum, or within the
                                      process unit controlling operating     range (whichever applies)
                                      parameters.                            established according to Sec.
                                                                             63.2262.
(6) Each Process unit listed in      Compliance options in Table 1B to      Implementing your plan to address
 Table 1B to this subpart using a     this subpart or the emissions          how organic HAP captured in the
 wet control device as the sole       averaging compliance option in Sec.    wastewater from the wet control
 means of reducing HAP emissions.      63.2240(c).                           device is contained or destroyed to
                                                                             minimize re-release to the
                                                                             atmosphere.
(7) Each process unit listed in      Compliance options in Tables 1B to     Conducting a repeat performance test
 Table 1B to this subpart using a     this subpart.                          using the applicable method(s)
 control device other than a                                                 specified in Table 4 to this
 biofilter.                                                                  subpart \1\ by August 13, 2023 or
                                                                             within 60 months following the
                                                                             previous performance test,
                                                                             whichever is later, and thereafter
                                                                             within 60 months following the
                                                                             previous performance test.
----------------------------------------------------------------------------------------------------------------
\1\ When conducting a repeat performance test, the capture efficiency demonstration required in Table 4 to this
  subpart, row 9 is not required to be repeated with the repeat emissions test if the capture device is
  maintained and operated consistent with its design as well as its operation during the previous capture
  efficiency demonstration conducted according to Table 4 to this subpart, row 9 as specified in Sec.   63.2267.
\2\ You may forego the annual catalyst activity check during the calendar year when a performance test is
  conducted according to Table 4 to this subpart.

0
23. Table 8 to subpart DDDD is revised to read as follows:

          Table 8 to Subpart DDDD of Part 63--Continuous Compliance With the Work Practice Requirements
----------------------------------------------------------------------------------------------------------------
                                        For the following work practice        You must demonstrate continuous
             For . . .                         requirements . . .                    compliance by . . .
----------------------------------------------------------------------------------------------------------------
(1) Dry rotary dryer...............  Process furnish with an inlet          Maintaining the 24-hour block
                                      moisture content less than or equal    average inlet furnish moisture
                                      to 30 percent (by weight, dry basis)   content at less than or equal to 30
                                      AND operate with an inlet dryer        percent (by weight, dry basis) AND
                                      temperature of less than or equal to   maintaining the 24-hour block
                                      600 [deg]F.                            average inlet dryer temperature at
                                                                             less than or equal to 600 [deg]F;
                                                                             AND keeping records of the inlet
                                                                             temperature of furnish moisture
                                                                             content and inlet dryer
                                                                             temperature.
(2) Hardwood veneer dryer..........  Process less than 30 volume percent    Maintaining the volume percent
                                      softwood species.                      softwood species processed below 30
                                                                             percent AND keeping records of the
                                                                             volume percent softwood species
                                                                             processed.
(3) Softwood veneer dryer..........  Minimize fugitive emissions from the   Following (and documenting that you
                                      dryer doors and the green end.         are following) your plan for
                                                                             minimizing fugitive emissions.

(4) Veneer redryers................  Process veneer with an inlet moisture  Maintaining the 24-hour block
                                      content of less than or equal to 25    average inlet moisture content of
                                      percent (by weight, dry basis).        the veneer processed at or below of
                                                                             less than or 25 percent AND keeping
                                                                             records of the inlet moisture
                                                                             content of the veneer processed.
(5) Group 1 miscellaneous coating    Use non-HAP coatings as defined in     Continuing to use non-HAP coatings
 operations.                          Sec.   63.2292.                        AND keeping records showing that
                                                                             you are using non-HAP coatings.
(6) Process units and control        Follow documented site-specific        Keeping records showing that you are
 systems undergoing safety-related    procedures to ensure the flow of raw   following the work practice
 shutdown on and after August 13,     materials and fuel or process heat     requirements during safety-related
 2021, except as noted in footnote    ceases and that material is removed    shutdowns.
 ``1'' to this table.                 from the process unit(s) as
                                      expeditiously as possible given the
                                      system design to reduce air
                                      emissions.
(7) Pressurized refiners undergoing  Route exhaust gases from the           Keeping records showing that you are
 startup or shutdown on and after     pressurized refiner to its dryer       following the work practice
 August 13, 2021, except as noted     control system no later than 15        requirements during pressurized
 in footnote ``1'' to this table.     minutes after wood is fed to the       refiner startup and shutdown
                                      pressurized refiner during startup.    events.
                                      Stop wood flow into the pressurized
                                      refiner no more than 15 minutes
                                      after wood fiber and exhaust gases
                                      from the pressurized refiner stop
                                      being routed to the dryer during
                                      shutdown..
(8) Direct-fired softwood veneer     Cease feeding green veneer into the    Keeping records showing that you are
 dryers undergoing startup or         softwood veneer dryer and minimize     following the work practice
 shutdown of gas-fired burners on     the amount of time direct gas-fired    requirements while undergoing
 and after August 13, 2021, except    softwood veneer dryers are vented to   startup or shutdown of softwood
 as noted in footnote ``1'' to this   the atmosphere due to the conditions   veneer dryer direct gas-fired
 table.                               described in Sec.   63.2250(d).        burners.
----------------------------------------------------------------------------------------------------------------
\1\ New or reconstructed affected sources that commenced construction or reconstruction after September 6, 2019
  must comply with this requirement beginning on August 13, 2020 or upon initial startup, whichever is later.

0
24. Table 9 to subpart DDDD is revised to read as follows:

                          Table 9 to Subpart DDDD of Part 63--Requirements for Reports
----------------------------------------------------------------------------------------------------------------
     You must submit a(n) . . .          The report must contain . . .        You must submit the report . . .
----------------------------------------------------------------------------------------------------------------
(1) Compliance report..............  The information in Sec.   63.2281(c)   Semiannually according to the
                                      through (g).                           requirements in Sec.   63.2281(b).
(2) Immediate startup, shutdown,     (i) Actions taken for the event......  By fax or telephone within 2 working
 and malfunction report if you had   .....................................   days after starting actions
 a startup, shutdown, or             (ii) The information in Sec.            inconsistent with the plan.
 malfunction during the reporting     63.10(d)(5)(ii).                      By letter within 7 working days
 period that is not consistent with                                          after the end of the event unless
 your SSMP before August 13,                                                 you have made alternative
 2021.\1\                                                                    arrangements with the permitting
                                                                             authority.
(3) Performance test report........  The information required in Sec.       According to the requirements of
                                      63.7(g).                               Sec.   63.2281(i).
(4) CMS performance evaluation, as   The information required in Sec.       According to the requirements of
 required for CEMS under Sec.         63.7(g).                               Sec.   63.2281(j).
 63.2269(d)(2).
----------------------------------------------------------------------------------------------------------------
\1\ The requirement for the SSM report in row 2 of this table does not apply for new or reconstructed affected
  sources that commenced construction or reconstruction after September 6, 2019.

0
25. Table 10 to subpart DDDD is revised to read as follows:

            Table 10 to Subpart DDDD of Part 63--Applicability of General Provisions to This Subpart
----------------------------------------------------------------------------------------------------------------
                                                                             Applies to this    Applies to this
                                                                             subpart  before     subpart on and
                                                                             August 13, 2021,   after August 13,
           Citation                  Subject          Brief description      except as noted    2021, except as
                                                                               in  footnote    noted in footnote
                                                                              ``1'' to this      ``1'' to this
                                                                                table              table
----------------------------------------------------------------------------------------------------------------
Sec.   63.1..................  Applicability.....  Initial applicability    Yes..............  Yes.
                                                    determination;
                                                    applicability after
                                                    standard established;
                                                    permit requirements;
                                                    extensions,
                                                    notifications.
Sec.   63.2..................  Definitions.......  Definitions for          Yes..............  Yes.
                                                    standards in this part.
Sec.   63.3..................  Units and           Units and abbreviations  Yes..............  Yes.
                                Abbreviations.      for standards in this
                                                    part.

Sec.   63.4..................  Prohibited          Prohibited activities;   Yes..............  Yes.
                                Activities and      compliance date;
                                Circumvention.      circumvention,
                                                    fragmentation.
Sec.   63.5..................  Preconstruction     Preconstruction review   Yes..............  Yes.
                                Review and          requirements of
                                Notification        section 112(i)(1).
                                Requirements.
Sec.   63.6(a)...............  Applicability.....  GP apply unless          Yes..............  Yes.
                                                    compliance extension;
                                                    GP apply to area
                                                    sources that become
                                                    major.
Sec.   63.6(b)(1)-(4)........  Compliance Dates    Standards apply at       Yes..............  Yes.
                                for New and         effective date; 3
                                Reconstructed       years after effective
                                Sources.            date; upon startup; 10
                                                    years after
                                                    construction or
                                                    reconstruction
                                                    commences for section
                                                    112(f).
Sec.   63.6(b)(5)............  Notification......  Must notify if           Yes..............  Yes.
                                                    commenced construction
                                                    or reconstruction
                                                    after proposal.
Sec.   63.6(b)(6)............  [Reserved]........
Sec.   63.6(b)(7)............  Compliance Dates    Area sources that        Yes..............  Yes.
                                for New and         become major must
                                Reconstructed       comply with major
                                Area Sources that   source standards
                                Become Major.       immediately upon
                                                    becoming major,
                                                    regardless of whether
                                                    required to comply
                                                    when they were an area
                                                    source.
Sec.   63.6(c)(1)-(2)........  Compliance Dates    Comply according to      Yes..............  Yes.
                                for Existing        date in subpart, which
                                Sources.            must be no later than
                                                    3 years after
                                                    effective date; for
                                                    section 112(f)
                                                    standards, comply
                                                    within 90 days of
                                                    effective date unless
                                                    compliance extension.
Sec.   63.6(c)(3)-(4)........  [Reserved]........
Sec.   63.6(c)(5)............  Compliance Dates    Area sources that        Yes..............  Yes.
                                for Existing Area   become major must
                                Sources that        comply with major
                                Become Major.       source standards by
                                                    date indicated in
                                                    subpart or by
                                                    equivalent time period
                                                    (e.g., 3 years).
Sec.   63.6(d)...............  [Reserved]........
Sec.   63.6(e)(1)(i).........  General Duty to     You must operate and     Yes..............  No, see Sec.
                                Minimize            maintain affected                           63.2250 for
                                Emissions.          source in a manner                          general duty
                                                    consistent with safety                      requirement.
                                                    and good air pollution
                                                    control practices for
                                                    minimizing emissions.
Sec.   63.6(e)(1)(ii)........  Requirement to      You must correct         Yes..............  No.
                                Correct             malfunctions as soon
                                Malfunctions ASAP.  as practicable after
                                                    their occurrence.
Sec.   63.6(e)(1)(iii).......  Operation and       Operation and            Yes..............  Yes.
                                Maintenance         maintenance
                                Requirements.       requirements are
                                                    enforceable
                                                    independent of
                                                    emissions limitations
                                                    or other requirements
                                                    in relevant standards.
Sec.   63.6(e)(2)............  [Reserved]........
Sec.   63.6(e)(3)............  Startup, Shutdown,  Requirement for SSM and  Yes..............  No.
                                and Malfunction     SSMP; content of SSMP.
                                Plan (SSMP).
Sec.   63.6(f)(1)............  SSM Exemption.....  You must comply with     No. See Sec.       No.
                                                    emission standards at    63.2250(a).
                                                    all times except
                                                    during SSM.
Sec.   63.6(f)(2)-(3)........  Methods for         Compliance based on      Yes..............  Yes.
                                Determining         performance test,
                                Compliance/         operation and
                                Finding of          maintenance plans,
                                Compliance.         records, inspection.
Sec.   63.6(g)(1)-(3)........  Alternative         Procedures for getting   Yes..............  Yes.
                                Standard.           an alternative
                                                    standard.
Sec.   63.6(h)(1)............  SSM Exemption.....  You must comply with     NA...............  No.
                                                    opacity and visible
                                                    emission standards at
                                                    all times except
                                                    during SSM.
Sec.   63.6(h)(2)-(9)........  Opacity/Visible     Requirements for         NA...............  NA.
                                Emission (VE)       opacity and visible
                                Standards.          emission standards.
Sec.   63.6(i)(1)-(14).......  Compliance          Procedures and criteria  Yes..............  Yes.
                                Extension.          for Administrator to
                                                    grant compliance
                                                    extension.
Sec.   63.6(i)(15)...........  [Reserved]........
Sec.   63.6(i)(16)...........  Compliance          Compliance extension     Yes..............  Yes.
                                Extension.          and Administrator's
                                                    authority.
Sec.   63.6(j)...............  Presidential        President may exempt     Yes..............  Yes.
                                Compliance          source category from
                                Exemption.          requirement to comply
                                                    with rule.
Sec.   63.7(a)(1)-(2)........  Performance Test    Dates for conducting     Yes..............  Yes.
                                Dates.              initial performance
                                                    testing and other
                                                    compliance
                                                    demonstrations; must
                                                    conduct 180 days after
                                                    first subject to rule.
Sec.   63.7(a)(3)............  Section 114         Administrator may        Yes..............  Yes.
                                Authority.          require a performance
                                                    test under CAA section
                                                    114 at any time.
Sec.   63.7(b)(1)............  Notification of     Must notify              Yes..............  Yes.
                                Performance Test.   Administrator 60 days
                                                    before the test.
Sec.   63.7(b)(2)............  Notification of     If have to reschedule    Yes..............  Yes.
                                Rescheduling.       performance test, must
                                                    notify Administrator
                                                    as soon as practicable.
Sec.   63.7(c)...............  Quality Assurance/  Requirement to submit    Yes..............  Yes.
                                Test Plan.          site-specific test
                                                    plan 60 days before
                                                    the test or on date