field test method used to quantify gas phase concentrations of multiple
analytes from stationary source effluent and is an acceptable
alternative to EPA Method 320 at this time with caveats requiring
inclusion of selected annexes to the standard as mandatory. When using
ASTM D6348-12e1, the following conditions must be met:
    (1) The test plan preparation and implementation in the Annexes to
ASTM D6348-03, sections A1 through A8 are mandatory; and
    (2) In ASTM D6348-03 Annex A5 (Analyte Spiking Technique), the
percent (%) R must be determined for each target analyte (Equation
A5.5).
    In order for the test data to be acceptable for a compound, %R must
be 70% >= R <= 130%. If the %R value does not meet this criterion for a
target compound, the test data is not acceptable for that compound and
the test must be repeated for that analyte (i.e., the sampling and/or
analytical procedure should be adjusted before a retest). The %R value
for each compound must be reported in the test report, and all field
measurements must be corrected with the calculated %R value for that
compound by using the following equation: Reported Results = ((Measured
Concentration in Stack))/(%R) x 100.
    The EPA is also incorporating by reference the VCS ASTM D6784-16,
``Standard Test Method for Elemental, Oxidized, Particle-Bound and
Total Mercury in Flue Gas Generated from Coal-Fired Stationary Sources
(Ontario Hydro Method)'' as an acceptable alternative to EPA Method 29
(portion for Hg only) as a method for measuring elemental, oxidized,
particle-bound, and total Hg concentrations ranging from approximately
0.5-100 micrograms per normal cubic meter ([mu]g/Nm\3\). This test
method describes equipment and procedures for obtaining samples from
effluent ducts and stacks, equipment and procedures for laboratory
analysis, and procedures for calculating results. VCS ASTM D6784-16
allows for additional flexibility in the sampling and analytical
procedures for the earlier version of the same standard VCS ASTM D6784-
02 (Reapproved 2008).
    The EPA is also incorporating by reference EPA-454/R-98-015, Office
of Air Quality Planning and Standards (OAQPS), Fabric Filter Bag Leak
Detection Guidance, September 1997, IBR for 40 CFR 63.9804(f). This
document provides guidance on the use of triboelectric monitors as
fabric filter bag leak detectors and includes fabric filter and
monitoring system descriptions; guidance on monitor selection,
installation, setup, adjustment, and operation; and quality assurance
procedures.
    Guidance document EPA-454/R-98-015 and ASTM D6784-16 are available
electronically through https://www.regulations.gov/ and/or in hard copy
at the appropriate EPA office (see the ADDRESSES section of this
preamble for more information). The ANSI/ASME document (ANSI/ASME PTC
19.10-1981) is available from the American Society of Mechanical
Engineers (ASME) at http://www.asme.org; by mail at Three Park Avenue,
New York, NY 10016-5990; or by telephone at<PHONE_NUMBER>. The ASTM
methods are available from ASTM International at https://www.astm.org;
by mail at 100 Barr Harbor Drive, Post Office Box C700, West
Conshohocken, PA 19428-2959; or by telephone at<PHONE_NUMBER>.

J. 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 the technical report
titled Risk and Technology Review--Analysis of Demographic Factors for
Populations Living Near Refractory Products Manufacturing Source
Category Operations, September 2020, available in the Refractory
Products Manufacturing Docket for this action (Docket Item No. EPA-HQ-
OAR-2020-0148-0007).
    The EPA provided opportunities to engage with the EPA on this
action. The Agency offered a public hearing and reached out to
communities in other ways, including meetings to exchange information
with stakeholders about this action. We did not receive a request for a
public hearing, and we did not receive feedback regarding EJ during the
meetings.

K. Congressional Review Act (CRA)

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

List of Subjects 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.

Michael S. Regan,
Administrator.
    For the reasons set out 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:
0
a. Revising paragraphs (e)(1) and (h)(86);
0
b. Redesignating paragraphs (h)(104) through (118) as paragraphs
(h)(105) through (119);
0
c. Adding new paragraph (h)(104); and
0
d. Revising paragraph (n)(4).

    The revisions and additions read as follows:

Sec.  63.14  Incorporations by reference.

* * * * *
    (e) * * *
    (1) ANSI/ASME PTC 19.10-1981, Flue and Exhaust Gas Analyses [Part
10, Instruments and Apparatus], issued August 31, 1981, IBR approved
for Sec. Sec.  63.309(k), 63.457(k), 63.772(e) and (h), 63.865(b),
63.997(e), 63.1282(d) and (g), and 63.1625(b), table 5 to subpart EEEE,
Sec. Sec.  63.3166(a), 63.3360(e), 63.3545(a), 63.3555(a), 63.4166(a),
63.4362(a), 63.4766(a), 63.4965(a), and 63.5160(d), table 4 to subpart
UUUU, table 3 to subpart YYYY, Sec. Sec.  63.7822(b), 63.7824(e),
63.7825(b), 63.8000(d), 63.9307(c), 63.9323(a), 63.9621(b) and (c),
63.11148(e), 63.11155(e), 63.11162(f), 63.11163(g), 63.11410(j),
63.11551(a), 63.11646(a), and 63.11945, and table 4 to subpart AAAAA,
table 5 to subpart DDDDD, table 4 to subpart JJJJJ, table 4 to subpart
KKKKK, table 4 to subpart SSSSS, tables 4 and 5 of subpart UUUUU, table
1 to subpart ZZZZZ, and table 4 to subpart JJJJJJ.
* * * * *
    (h) * * *
    (86) ASTM D6348-12e1, Standard Test Method for Determination of
Gaseous Compounds by Extractive Direct Interface Fourier Transform
Infrared (FTIR) Spectroscopy, Approved February 1, 2012, IBR approved
for Sec. Sec.  63.997(e), 63.1571(a), and 63.2354(b), table 5 to
subpart EEEE, table 4 to subpart UUUU, Sec. Sec.  63.7142(a) and (b)
and 63.8000(d), and table 4 to subpart SSSSS.
* * * * *
    (104) ASTM D6784-16, Standard Test Method for Elemental, Oxidized,
Particle-Bound and Total Mercury in Flue Gas Generated from Coal-Fired
Stationary Sources (Ontario Hydro Method), Approved March 1, 2016, IBR
approved for table 4 to subpart SSSSS.
* * * * *
    (n) * * *
    (4) EPA-454/R-98-015, Office of Air Quality Planning and Standards
(OAQPS), Fabric Filter Bag Leak Detection Guidance, September 1997,
https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=2000D5T6.PDF, IBR approved
for Sec. Sec.  63.548(e), 63.864(e), 63.7525(j), 63.8450(e),
63.8600(e), 63.9632(a), 63.9804(f), and 63.11224(f).
* * * * *

Subpart SSSSS--National Emission Standards for Hazardous Air
Pollutants for Refractory Products Manufacturing

0
3. Section 63.9786 is amended by revising paragraphs (a), (b), and
(d)(2) to read as follows:

Sec.  63.9786   When do I have to comply with this subpart?

    (a) If you have a new or reconstructed affected source, you must
comply with this subpart according to paragraphs (a)(1) and (2) of this
section.
    (1) If the initial startup of your affected source is before April
16, 2003, then you must comply with the emission limitations for new
and reconstructed sources in this subpart no later than April 16, 2003,
except as otherwise specified in Sec. Sec.  63.9792, 63.9812(c) and
(e), and 63.9814(b)(6) and Tables 1 through 11 to this subpart.
    (2) If the initial startup of your affected source is after April
16, 2003, then you must comply with the emission limitations for new
and reconstructed sources in this subpart upon initial startup of your
affected source, except as otherwise specified in Sec. Sec.  63.9792,
63.9812(c) and (e), and 63.9814(b)(6) and Tables 1 through 11 to this
subpart.
    (b) If you have an existing affected source, you must comply with
the emission limitations for existing sources no later than April 17,
2006, except as otherwise specified in Sec. Sec.  63.9792, 63.9812(c)
and (e), and 63.9814(b)(6) and Tables 1 through 11 to this subpart.
* * * * *
    (d) * * *
    (2) All other parts of the existing facility must be in compliance
with this subpart by 3 years after the date the area source becomes a
major source, except as otherwise specified in Sec. Sec.  63.9792,
63.9812(c) and (e), and 63.9814(b)(6) and Tables 1 through 11 to this
subpart.
* * * * *

0
4. Section 63.9792 is amended by revising paragraph (a) introductory
text, paragraphs (b) and (c), paragraph (e) introductory text, and
paragraphs (e)(2) and (3) to read as follows:

Sec.  63.9792   What are my general requirements for complying with
this subpart?

    (a) You must be in compliance with the emission limitations
(including operating limits and work practice standards) in this
subpart at all times, except during periods specified in paragraphs
(a)(1) and (2) of this section before May 19, 2022. You must be in
compliance with the emission limitations (including operating limits
and work practice standards) in this subpart at all times, on or after
May 19, 2022.
* * * * *
    (b) Except as specified in paragraph (e) of this section, before
May 19, 2022, 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). During the period
between the compliance date specified for your affected source in Sec.
63.9786 and the date upon which continuous monitoring systems have been
installed and validated and any applicable operating limits have been
established, you must maintain a log detailing the operation and
maintenance of the process and emissions control equipment. On and
after May 19, 2022, at all times, you must operate and maintain any
affected source, including associated air pollution control equipment
and monitoring equipment, in a manner consistent with safety and good
air pollution control practices for minimizing emissions. 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 that 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 affected source.
    (c) Before May 19, 2022, you must develop a written startup,
shutdown, and malfunction plan (SSMP) according to the provisions in
Sec.  63.6(e)(3). On or after May 19, 2022, you are not required to
develop a written SSMP according to the provisions in Sec.  63.6(e)(3).
* * * * *
    (e) If you own or operate an affected continuous kiln used to
manufacture refractory products that use organic HAP and you must
perform scheduled maintenance on the THC control device for that kiln,
you may bypass the kiln THC control device and continue operating the
kiln subject to the alternative standard established in this paragraph
upon approval by the Administrator, provided you satisfy the conditions
listed in paragraphs (e)(1) through (3) of this section.
* * * * *
    (2) Before May 19, 2022, you must minimize HAP emissions during the
period when the kiln is operating, and the control device is out of
service. On

and after May 19, 2022, you must minimize HAP emissions during the
period when the kiln is operating and the control device is out of
service by complying with the applicable standard in Table 3 to this
subpart.
    (3) You must minimize the time period during which the kiln is
operating and the control device is out of service. On and after May
19, 2022, the total time during which the kiln is operating and the
control device is out of service for each year on a 12-month rolling
basis must not exceed 750 hours.
* * * * *

0
5. Section 63.9794 is amended by revising paragraphs (a)(7), (8), (12),
and (13) and paragraph (b)(2) to read as follows:

Sec.  63.9794   What do I need to know about operation, maintenance,
and monitoring plans?

    (a) * * *
    (7) Before May 19, 2022, procedures for the proper operation and
maintenance of monitoring equipment consistent with the requirements in
Sec. Sec.  63.8(c)(1), (3), (4)(ii), (7), and (8), and 63.9804. On or
after May 19, 2022, procedures for the proper operation and maintenance
of monitoring equipment consistent with the requirements in Sec. Sec.
63.8(c)(3), (4)(ii), (7), and (8), and 63.9804.
    (8) Before May 19, 2022, ongoing data quality assurance procedures
in accordance with the general requirements of Sec.  63.8(d). On or
after May 19, 2022, ongoing data quality assurance procedures
consistent with the requirements in Sec.  63.8(d)(1) and (2). You must
keep these written procedures on record for the life of the affected
source or until the affected source is no longer subject to the
provisions of this part, to be made available for inspection, upon
request, by the Administrator. If the performance evaluation plan in
Sec.  63.8(d)(2) 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).
* * * * *
    (12) Before Novermber 19, 2021, if you operate a kiln that is
subject to the limits on the type of fuel used, as specified in items 3
and 4 of Table 3 to subpart SSSSS, procedures for using alternative
fuels. On and after Novermber 19, 2021, you may not use a fuel other
than natural gas or equivalent to fire the affected kiln.
    (13) If you operate an affected continuous kiln used to manufacture
refractory products that use organic HAP and you plan to take the kiln
THC control device out of service for scheduled maintenance, as
specified in Sec.  63.9792(e), the procedures specified in paragraphs
(a)(13)(i) and (ii) of this section.
    (i) Procedures for minimizing HAP emissions from the kiln during
periods of scheduled maintenance of the kiln control device when the
kiln is operating and the control device is out of service. On or after
May 19, 2022, document the average organic HAP processing rate for that
kiln (i.e., the average organic HAP processing rate based on (a) the
actual production on a 6-month rolling basis (not to include periods of
kiln shut down) or (b) the HAP processing rate (lb/hr) that coincides
with the lowest hour of the most recent 3-hour performance test,
whichever is lower), the mass fraction of organic HAP in the resins,
binders, and additives for each product manufactured in the kiln and
procedures for ensuring that the actual organic HAP processing rate on
an hourly basis does not exceed the average organic HAP processing
rate.
    (ii) Procedures for minimizing any period of scheduled maintenance
on the kiln control device when the kiln is operating and the control
device is out of service. On or after May 19, 2022, procedures for
ensuring that the total time during which the kiln is operating and the
control device is out of service does not exceed 750 hours for each
year on a 12-month rolling basis.
    (b) * * *
    (2) After completing the performance tests to demonstrate that
compliance with the emission limits can be achieved at the revised
operating limit parameter value, you must submit the summary of the
performance test results and the revised operating limits as part of
the Notification of Compliance Status required under Sec.  63.9(h) and
the complete test report according to Sec.  63.9814(h).
* * * * *

0
6. Section 63.9800 is amended by revising paragraphs (c) and (d) and
paragraph (g) introductory text and adding paragraph (g)(4) to read as
follows:

Sec.  63.9800   How do I conduct performance tests and establish
operating limits?

* * * * *
    (c) Before May 19, 2022, each performance test must be conducted
according to the requirements in Sec.  63.7 and under the specific
conditions in Table 4 to this subpart. On or after May 19, 2022, each
performance test must be conducted under the specific conditions in
Table 4 to this subpart.
    (d) Before May 19, 2022, you may not conduct performance tests
during periods of startup, shutdown, or malfunction, as specified in
Sec.  63.7(e)(1). On or after May 19, 2022, you may not conduct
performance tests during periods of malfunction. You also may not
conduct performance tests during periods of startup or shutdown. 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 represent normal operation.
You must make available to the Administrator such records as may be
necessary to determine the conditions of performance tests.
* * * * *
    (g) You must use the data gathered during the performance test and
the equations in paragraphs (g)(1) through (4) of this section to
determine compliance with the emission limitations.
* * * * *
    (4) To determine compliance with the Hg emission concentration
limit listed in Table 1 to this subpart, you must calculate your
emission concentration corrected to 18 percent oxygen for each test run
using Equation 4 of this section:
[GRAPHIC] [TIFF OMITTED] TR19NO21.573

Where:

CHg-C = Hg concentration, corrected to 18 percent oxygen,
micrograms per dry standard cubic meters ([micro]g/dscm)
CHg = Hg concentration (uncorrected), [micro]g/dscm

CO2 = oxygen concentration, percent.
* * * * *

0
7. Section 63.9804 is amended by revising paragraphs (a)(13), (e)(1),
and (f)(1) to read as follows:

Sec.  63.9804   What are my monitoring system installation, operation,
and maintenance requirements?

    (a) * * *
    (13) At all times, you must maintain your CPMS in accordance with
Sec.  63.9792(b), including, but not limited to, keeping the necessary
parts readily available for routine repairs of the CPMS.
* * * * *
    (e) * * *
    (1) Use a pH CPMS with a minimum accuracy of 0.2 pH
units.
* * * * *
    (f) * * *
    (1) Each triboelectric bag leak detection system must be installed,
calibrated, operated, and maintained according to the ``Fabric Filter
Bag Leak Detection Guidance'' (EPA-454/R-98-015, September 1997)
(incorporated by reference, see Sec.  63.14). Other types of bag leak
detection systems must be installed, operated, calibrated, and
maintained in a manner consistent with the manufacturer's written
specifications and recommendations.
* * * * *

0
8. Section 63.9806 is amended by revising paragraph (d) to read as
follows:

Sec.  63.9806   How do I demonstrate initial compliance with the
emission limits, operating limits, and work practice standards?

* * * * *
    (d) You must submit the Notification of Compliance Status
containing the results of the initial compliance demonstration
according to the requirements in Sec.  63.9812(e). After Novermber 19,
2021 for affected sources that commence construction or reconstruction
after January 14, 2021, and on and after May 19, 2022 for all other
affected sources, you must submit the Notification of Compliance Status
containing the results of the initial compliance demonstration
according to the requirements in Sec.  63.9812(e) and 63.9814(j).

0
9. Section 63.9808 is amended by revising paragraph (b) to read as
follows:

Sec.  63.9808   How do I monitor and collect data to demonstrate
continuous compliance?

* * * * *
    (b) At all times, you must maintain your monitoring systems in
accordance with Sec.  63.9792(b), including, but not limited to,
keeping the necessary parts readily available for routine repairs of
the monitoring equipment.
* * * * *

0
10. Section 63.9810 is amended by revising paragraph (e) and adding
paragraph (f) to read as follows:

Sec.  63.9810   How do I demonstrate continuous compliance with the
emission limits, operating limits, and work practice standards?

* * * * *
    (e) Before May 19, 2022, you must report each instance in which you
did not meet each emission limit and each operating limit in this
subpart that applies to you. This includes periods of SSM. These
instances are deviations from the emission limitations in this subpart.
These deviations must be reported according to the requirements in
Sec.  63.9814. On or after May 19, 2022, you must report each instance
in which you did not meet each emission limit and each operating limit
in this subpart that applies to you. These instances are deviations
from the emission limitations in this subpart. These deviations must be
reported according to the requirements in Sec.  63.9814.
    (1) [Reserved]
    (2) Before May 19, 2022, consistent with Sec. Sec.  63.6(e) and
63.7(e)(1), deviations that occur during a period of startup, shutdown,
or malfunction are not violations if you demonstrate to the
Administrator's satisfaction that you were operating in accordance with
Sec.  63.6(e)(1) and your OM&M plan. The Administrator will determine
whether deviations that occur during a period of startup, shutdown, or
malfunction are violations, according to the provisions in Sec.
63.6(e). On or after May 19, 2022, consistent with Sec. Sec.
63.9792(b) and 63.9800(d), deviations are not violations if you
demonstrate to the Administrator's satisfaction that you were operating
in accordance with Sec.  63.9792(b) and your OM&M plan. The
Administrator will determine whether deviations are violations,
according to the provisions in Sec.  63.9792(b).
    (f) You must demonstrate continuous compliance with the operating
limits in Table 2 to this subpart for visible emissions (VE) from clay
refractory products kilns that are uncontrolled or equipped with DLA,
dry lime injection fabric filter (DIFF), dry lime scrubber/fabric
filter (DLS/FF) or other dry control device as described in paragraph
(f)(1) or (2) of this section.
    (1) VE testing. Monitoring VE at each kiln stack according to the
requirements in paragraphs (f)(1)(i) through (v) of this section.
    (i) Perform daily VE observations of each kiln stack according to
the procedures of EPA Method 22 of 40 CFR part 60, appendix A-7. You
must conduct the EPA Method 22 test while the affected source is
operating under normal conditions. The duration of each EPA Method 22
test must be at least 15 minutes.
    (ii) If VE are observed during any daily test conducted using EPA
Method 22 of 40 CFR part 60, appendix A-7, you must promptly conduct an
opacity test, according to the procedures of EPA Method 9 of 40 CFR
part 60, appendix A-4. If opacity greater than 10 percent is observed,
you must initiate and complete corrective actions according to your
OM&M plan.
    (iii) You may decrease the frequency of EPA Method 22 testing from
daily to weekly for a kiln stack if one of the conditions in paragraph
(f)(1)(iii)(A) or (B) of this section is met.
    (A) No VE are observed in 30 consecutive daily EPA Method 22 tests
for any kiln stack; or
    (B) No opacity greater than 10 percent is observed during any of
the EPA Method 9 tests for any kiln stack.
    (iv) If VE are observed during any weekly test and opacity greater
than 10 percent is observed in the subsequent EPA Method 9 test, you
must promptly initiate and complete corrective actions according to
your OM&M plan, resume testing of that kiln stack following EPA Method
22 of 40 CFR part 60, appendix A-7, on a daily basis, as described in
paragraph (f)(1)(i) of this section, and maintain that schedule until
one of the conditions in paragraph (f)(1)(iii)(A) or (B) of this
section is met, at which time you may again decrease the frequency of
EPA Method 22 testing to a weekly basis.
    (v) If greater than 10 percent opacity is observed during any test
conducted using EPA Method 9 of 40 CFR part 60, appendix A-4, you must
report these deviations by following the requirements in Sec.  63.9814.
    (2) Alternative to VE testing. In lieu of meeting the requirements
under paragraph (f)(1) of this section, you may conduct a PM test at
least once every year following the initial performance test, according
to the procedures of EPA Method 5 of 40 CFR part 60, appendix A-3, and
the provisions of Sec.  63.9800(e) and (f).

0
11. Section 63.9812 is amended by revising paragraphs (b) and (c),
paragraph (e) introductory text, paragraph (e)(1), paragraph (f)
introductory text, and paragraph (g) to read as follows:

Sec.  63.9812   What notifications must I submit and when?

* * * * *
    (b) As specified in Sec.  63.9(b)(2) and (3), if you start up your
affected source before April 16, 2003, you must submit an Initial
Notification not later than 120 calendar days after April 16, 2003, or
no later than 120 days after the source becomes subject to this
subpart, whichever is later.
    (c) As specified in Sec.  63.9(b)(3), if you start up your new or
reconstructed affected source on or after April 16, 2003, you must
submit an Initial Notification not later than 120 calendar days after
you become subject to this subpart. Initial Notifications required to
be submitted after November 19, 2021 for affected sources that commence
construction or reconstruction after January 14, 2021, and on and after
May 19, 2022 for all other affected sources submitting initial
notifications required in Sec.  63.9(b) must be submitted following the
procedure specified in Sec.  63.9814(h) through (l).
* * * * *
    (e) If you are required to conduct a performance test, you must
submit a Notification of Compliance Status as specified in Sec.
63.9(h) and paragraphs (e)(1) and (2) of this section. After November
19, 2021 for affected sources that commence construction or
reconstruction after January 14, 2021, and on and after May 19, 2022
for all other affected sources, submit all subsequent Notifications of
Compliance Status following the procedure specified in Sec.  63.9814(h)
through (l).
    (1) For each compliance demonstration 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 the summary of the performance test results, before the close
of business on the 60th calendar day following the completion of the
performance test.
* * * * *
    (f) Before November 19, 2021, if you operate a clay refractory
products kiln or a chromium refractory products kiln that is subject to
the work practice standard specified in item 3 or 4 of Table 3 to this
subpart, and you intend to use a fuel other than natural gas or
equivalent to fire the affected kiln, you must submit a notification of
alternative fuel use within 48 hours of the declaration of a period of
natural gas curtailment or supply interruption, as defined in Sec.
63.9824. The notification must include the information specified in
paragraphs (f)(1) through (5) of this section. On and after November
19, 2021, you may not use a fuel other than natural gas or equivalent
to fire the affected kiln.
* * * * *
    (g) If you own or operate an affected continuous kiln used to
manufacture refractory products that use organic HAP and must perform
scheduled maintenance on the THC control device for that kiln, you must
request approval from the Administrator before bypassing the control
device, as specified in Sec.  63.9792(e). You must submit a separate
request for approval each time you plan to bypass the kiln control
device.

0
12. Section 63.9814 is amended by:
0
a. Revising paragraph (c) introductory text and paragraph (c)(4);
0
b. Adding paragraph (c)(7);
0
c. Revising paragraphs (d) and (e) and paragraph (g) introductory text;
and
0
d. Adding paragraphs (h) through (l).
    The revisions and additions read as follows:

Sec.  63.9814   What reports must I submit and when?

* * * * *
    (c) The compliance report must contain the information in
paragraphs (c)(1) through (7) of this section.
* * * * *
    (4) Before May 19, 2022, if you had a startup, shutdown, or
malfunction during the reporting period, and you took actions
consistent with your SSMP and OM&M plan, the compliance report must
include the information specified in Sec.  63.10(d)(5)(i). On or after
May 19, 2022, if you had a deviation from any emission limitations
(emission limit, operating limit, or work practice standard) during the
reporting period that apply to you, and you took actions consistent
with your OM&M plan, the compliance report must include the information
specified in (d) and (e) of this section.
* * * * *
    (7) For each period when an affected continuous kiln used to
manufacture refractory products that use organic HAP was operating
while the THC control device was out of service, the compliance report
must include a description of the control device maintenance performed,
including the information specified in paragraphs (c)(7)(i) through
(vi) of this section.
    (i) The date and time when the control device was shut down and
restarted.
    (ii) Identification of the kiln that was operating and the number
of hours that the kiln operated while the control device was out of
service.
    (iii) A statement of whether or not the control device maintenance
was included in your approved request to bypass the control device
while scheduled maintenance is performed, developed as specified in
Sec.  63.9792(e).
    (iv) Before May 19, 2022, a statement of whether emissions were
minimized while the control device was out of service in accordance
with your OM&M plan. After May 19, 2022, a statement of whether
emissions were minimized while the control device was out of service in
accordance with your OM&M plan and the information specified in
paragraphs (c)(7)(iv)(A) through (C) of this section.
    (A) The average organic HAP processing rate based on actual
production on a 6-month rolling basis (not to include periods of kiln
shut down) or the lowest hourly organic HAP processing rate from the
most recent performance test on that kiln, whichever is lower.
    (B) The actual hourly organic HAP processing rate for the kiln
while the control device was out of service.
    (C) The amount of product manufactured and the mass of organic HAP
in the product manufactured in the kiln while the control device was
out of service.
    (v) After May 19, 2022, an estimate of the THC emissions from the
continuous kiln stack while the control device was out of service.
    (vi) After May 19, 2022, the total number of hours that the kiln
has operated while the control device was out of service during the
last year on a 12-month rolling basis.
    (d) Before May 19, 2022, for each deviation from an emission
limitation (emission limit, operating limit, or work practice standard)
that occurs at an affected source where you are not using a CPMS to
comply with the emission limitations in this subpart, the compliance
report must contain the information in paragraphs (c)(1) through (4)
and (d)(1) and (2) of this section. This includes periods of SSM. On or
after May 19, 2022, for each deviation from an emission limitation
(emission limit, operating limit, or work practice standard) that
occurs at an affected source where you are not using a CPMS to comply
with the emission limitations in this subpart, the compliance report
must contain the information in paragraphs (c)(1) through (4) and
(d)(1) through (3) of this section.
    (1) The compliance report must include the total operating time of
each affected source during the reporting period.
    (2) The compliance report must include information on the number,

duration in hours, and cause of deviations (including unknown cause, if
applicable) and the corrective action taken.
    (3) The compliance report must include the date and time of each
deviation, a list of the affected sources or equipment, and an estimate
of each regulated pollutant emitted over the emission limit and a
description of the method used to estimate the emissions.
    (e) Before May 19, 2022, for each deviation from an emission
limitation (emission limit, operating limit, or work practice standard)
occurring at an affected source where you are using a CPMS to comply
with the emission limitation in this subpart, the compliance report
must include the information in paragraphs (c)(1) through (4) and
(e)(1) through (13) of this section. This includes periods of SSM. On
or after May 19, 2022, for each deviation from an emission limitation
(emission limit, operating limit, or work practice standard) occurring
at an affected source where you are using a CPMS to comply with the
emission limitation in this subpart, the compliance report must include
the information in paragraphs (c)(1) through (4) and (e)(1) through
(13) of this section.
    (1) The total operating time of each affected source during the
reporting period.
    (2) Before May 19, 2022, the date and time that each startup,
shutdown, or malfunction started and stopped. On or after May 19, 2022,
the date and time that each startup, shutdown, or malfunction started
and stopped is not required.
    (3) The date, time, and duration in hours that each CPMS was
inoperative.
    (4) The date, time and duration in hours that each CPMS was out of
control, including the information in Sec.  63.8(c)(8), as required by
your OM&M plan.
    (5) Before May 19, 2022, the date and time that each deviation from
an emission limitation (emission limit, operating limit, or work
practice standard) started and stopped, and whether each deviation
occurred during a period of startup, shutdown, or malfunction. On or
after May 19, 2022, for each deviation from an emission limitation
(emission limit, operating limit, or work practice standard), the date
and time that each deviation started and stopped, the duration in
hours, a list of the affected sources or equipment, an estimate of each
regulated pollutant emitted over the emission limit, and a description
of the method used to estimate the emissions.
    (6) A description of corrective action taken in response to a
deviation.
    (7) The total number of deviations during the reporting period, a
summary of the total duration in hours of the deviations during the
reporting period, and the total duration as a percentage of the total
source operating time during that reporting period.
    (8) Before May 19, 2022, a breakdown of the total duration of the
deviations during the reporting period into those that are due to
startup, shutdown, control equipment problems, process problems, other
known causes, and other unknown causes. On or after May 19, 2022, a
breakdown of the total duration of the deviations during the reporting
period into those that are due to control equipment problems, process
problems, other known causes, and other unknown causes.
    (9) A summary of the total duration in hours of CPMS downtime
during the reporting period and the total duration of CPMS downtime as
a percentage of the total source operating time during that reporting
period.
    (10) A brief description of the process units.
    (11) A brief description of the CPMS.
    (12) The date of the latest CPMS initial validation or accuracy
audit.
    (13) A description of any changes in CPMS, processes, or controls
since the last reporting period.
* * * * *
    (g) Before November 19, 2021, if you operate a clay refractory
products kiln or a chromium refractory products kiln that is subject to
the work practice standard specified in item 3 or 4 of Table 3 to this
subpart, and you use a fuel other than natural gas or equivalent to
fire the affected kiln, you must submit a report of alternative fuel
use within 10 working days after terminating the use of the alternative
fuel. The report must include the information in paragraphs (g)(1)
through (6) of this section. On and after November 19, 2021, you may
not use a fuel other than natural gas or equivalent to fire the
affected kiln.
* * * * *
    (h) Beginning on May 19, 2022, 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 (h)(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 the Compliance and Emissions Data
Reporting Interface (CEDRI), which can be accessed through the EPA's
CDX (https://cdx.epa.gov/). The data must be submitted in a file format
generated using 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). Do not use CEDRI to
submit information you claim as CBI. Anything submitted using CEDRI
cannot later be claimed CBI. Although we do not expect persons to
assert a claim of CBI, if you wish to assert a CBI claim for some of
the information submitted under paragraph (h)(1) or (2) of this
section, you must submit a complete file, including information claimed
to be CBI, to the EPA. The file must be generated using 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/OAPQS/
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 paragraphs (h)(1) and (2) of this section. 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
the EPA is required to make emissions data available to the public.
Thus, emissions data will not be protected as CBI and will be made
publicly available.
    (i) Beginning on May 19, 2022, within 60 days after the date of
completing each continuous emissions monitoring system (CEMS)
performance evaluation (as defined in Sec.  63.2), you must submit the
results of the performance evaluation following the procedures
specified in paragraphs (i)(1) through (3) of this section.

    (1) Performance evaluations of CEMS 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 using 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 CEMS 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) CBI. Do not use CEDRI to submit information you claim as CBI.
Anything submitted using CEDRI cannot later be claimed CBI. Although we
do not expect persons to assert a claim of CBI, if you wish to assert a
CBI claim for some of the information submitted under paragraph (i)(1)
or (2) of this section, you must submit a complete file, including
information claimed to be CBI, to the EPA. The file must be generated
using 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 paragraphs (h)(1) and (2) of this section. 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 the EPA is required to make emissions data available to
the public. Thus, emissions data will not be protected as CBI and will
be made publicly available.
    (j) Beginning May 19, 2022, you must submit all subsequent
Notification of Compliance Status reports in PDF format to the EPA via
CEDRI, which can be accessed through EPA's 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 CBI. Anything submitted using CEDRI
cannot later be claimed CBI. Although we do not expect persons to
assert a claim of CBI, if you wish to assert a CBI claim, submit a
complete report, including information claimed to be CBI, to the EPA.
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:
Refractory Lead 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 earlier 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 the EPA is required 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 through
CEDRI in the EPA's CDX, you may assert a claim of EPA system outage for
failure to timely comply with that reporting requirement. 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 five 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) A description of 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 reporting requirement at the time of the notification,
the date you reported.
    (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, you may assert a claim of force majeure for
failure to timely comply with that reporting requirement. 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) A description of 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 reporting requirement at the time of the notification,
the date you reported.
    (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 63.9816 is amended by revising paragraph (a)(2) and
paragraphs (c)(5), (8), and (10) to read as follows:

Sec.  63.9816   What records must I keep?

    (a) * * *
    (2) Before May 19, 2022, the records in Sec.  63.6(e)(3)(iii)
through (v) related SSM.
* * * * *
    (c) * * *
    (5) For each deviation of an operating limit parameter value,
record the information in paragraphs (c)(5)(i) through (iv) of this
section.
    (i) The date, time, and duration in hours of the deviation.
    (ii) On or after May 19, 2022, a list of the affected sources or
equipment.
    (iii) On or after May 19, 2022, an estimate of the quantity in
pounds of each regulated pollutant over any emission limit and a
description of the method used to estimate emissions.
    (iv) Actions taken to minimize emissions in accordance with Sec.
63.9792(b), a brief explanation of the cause of the deviation, and the
corrective action taken to return the affected unit to its normal or
usual manner of operation.
* * * * *
    (8) Records of maintenance activities and inspections performed on
control devices, including all records associated with the scheduled
maintenance of the THC control devices on continuous kilns used to
manufacture refractory products that use organic HAP, as specified in
Sec.  63.9792(e).
* * * * *
    (10) Current copies of the OM&M plan, including any revisions and
records documenting conformance with those revisions.

0
14. Section 63.9820 is revised to read as follows:

Sec.  63.9820   What parts of the General Provisions apply to me?

    Table 11 to this subpart shows which parts of the General
Provisions specified in Sec. Sec.  63.1 through 63.16 apply to you.

0
15. Section 63.9822 is amended by revising paragraph (c) introductory
text and adding paragraph (c)(5) to read as follows:

Sec.  63.9822   Who implements and enforces this subpart?

* * * * *
    (c) The authorities that cannot be delegated to state, local, or
tribal agencies are as specified 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
16. Section 63.9824 is amended by revising the definition of
``Particulate matter (PM)'' to read as follows:

Sec.  63.9824   What definitions apply to this subpart?

* * * * *
    Particulate matter (PM) means, for the purposes of this subpart,
emissions of particulate matter that serve as a measure of total
particulate emissions as measured by EPA Method 5 of 40 CFR part 60,
appendix A-3.
* * * * *

0
17. Table 1 to Subpart SSSSS is revised to read as follows:

Table 1 to Subpart SSSSS of Part 63--Emission Limits

    As stated in Sec.  63.9788, you must comply with the emission
limits for affected sources in the following table:

------------------------------------------------------------------------
                                    You must meet the following emission
             For . . .                          limits . . .
------------------------------------------------------------------------
1. Each new or existing curing      As specified in items 2 through 9 of
 oven, shape dryer, and kiln that    this table.
 is used to process refractory
 products that use organic HAP;
 each new or existing coking oven
 and defumer that is used to
 produce pitch-impregnated
 refractory products; each new
 shape preheater that is used to
 produce pitch-impregnated
 refractory products; AND each new
 or existing process unit that is
 exhausted to a thermal or
 catalytic oxidizer that also
 controls emissions from an
 affected shape preheater or pitch
 working tank.
2. Continuous process units that    a. The 3-hour block average THC
 are controlled with a thermal or    concentration must not exceed 20
 catalytic oxidizer.                 parts per million by volume, dry
                                     basis (ppmvd), corrected to 18
                                     percent oxygen, at the outlet of
                                     the control device; or
                                    b. The 3-hour block average THC mass
                                     emissions rate must be reduced by
                                     at least 95 percent.
3. Continuous process units that    a. The 3-hour block average THC
 are equipped with a control         concentration must not exceed 20
 device other than a thermal or      ppmvd, corrected to 18 percent
 catalytic oxidizer.                 oxygen, at the outlet of the
                                     control device; or
                                    b. The 3-hour block average THC mass
                                     emissions rate must be reduced by
                                     at least 95 percent.
4. Continuous process units that    The 3-hour block average THC
 use process changes to reduce       concentration must not exceed 20
 organic HAP emissions.              ppmvd, corrected to 18 percent
                                     oxygen, at the outlet of the
                                     process gas stream.
5. Continuous kilns that are not    The 3-hour block average THC
 equipped with a control device.     concentration must not exceed 20
                                     ppmvd, corrected to 18 percent
                                     oxygen, at the outlet of the
                                     process gas stream.
6. Batch process units that are     a. The 2-run block average THC
 controlled with a thermal or        concentration for the 3-hour peak
 catalytic oxidizer.                 emissions period must not exceed 20
                                     ppmvd, corrected to 18 percent
                                     oxygen, at the outlet of the
                                     control device; or
                                    b. The 2-run block average THC mass
                                     emissions rate for the 3-hour peak
                                     emissions period must be reduced by
                                     at least 95 percent.
7. Batch process units that are     a. The 2-run block average THC
 equipped with a control device      concentration for the 3-hour peak
 other than a thermal or catalytic   emissions period must not exceed 20
 oxidizer.                           ppmvd, corrected to 18 percent
                                     oxygen, at the outlet of the
                                     control device; or
                                    b. The 2-run block average THC mass
                                     emissions rate for the 3-hour peak
                                     emissions period must be reduced by
                                     at least 95 percent.

8. Batch process units that use     The 2-run block average THC
 process changes to reduce organic   concentration for the 3-hour peak
 HAP emissions.                      emissions period must not exceed 20
                                     ppmvd, corrected to 18 percent
                                     oxygen, at the outlet of the
                                     process gas stream.
9. Batch process kilns that are     The 2-run block average THC
 not equipped with a control         concentration for the 3-hour peak
 device.                             emissions period must not exceed 20
                                     ppmvd, corrected to 18 percent
                                     oxygen, at the outlet of the
                                     process gas stream.
10. Each new continuous kiln that   a. The 3-hour block average HF
 is used to produce clay             emissions must not exceed 0.019
 refractory products.                kilograms per megagram (kg/Mg)
                                     (0.038 pounds per ton (lb/ton)) of
                                     uncalcined clay processed, OR the 3-
                                     hour block average HF mass
                                     emissions rate must be reduced by
                                     at least 90 percent; and
                                    b. The 3-hour block average HCl
                                     emissions must not exceed 0.091 kg/
                                     Mg (0.18 lb/ton) of uncalcined clay
                                     processed, OR the 3-hour block
                                     average HCl mass emissions rate
                                     must be reduced by at least 30
                                     percent; and
                                    c. The 3-hour block average PM
                                     emissions must not exceed 1.4 kg/Mg
                                     (3.1 lb/hr); and
                                    d. The 3-hour block average Hg
                                     concentration must not exceed 6.1
                                     micrograms per dry standard cubic
                                     meter ([micro]g/dscm), corrected to
                                     18 percent oxygen, at the outlet of
                                     the control device or the process
                                     gas stream.
11. Each new batch process kiln     a. The 2-run block average HF mass
 that is used to produce clay        emissions rate for the 3-hour peak
 refractory products.                emissions period must be reduced by
                                     at least 90 percent; and
                                    b. The 2-run block average HCl mass
                                     emissions rate for the 3-hour peak
                                     emissions period must be reduced by
                                     at least 30 percent; and
                                    c. The 2-run block average PM
                                     emissions for the 3-hour peak
                                     emissions period must not exceed
                                     1.4 kg/Mg (3.1 lb/hr); and
                                    d. The 2-run block average Hg
                                     concentration for the 3-hour peak
                                     emissions period must not exceed
                                     6.1 [micro]g/dscm, corrected to 18
                                     percent oxygen, at the outlet of
                                     the control device or the process
                                     gas stream.
12. Each existing continuous kiln   a. The 3-hour block average PM
 that is used to produce clay        emissions must not exceed 4.3 kg/Mg
 refractory products on and after    (9.5 lb/hr); and
 November 20, 2022.                 b. The 3-hour block average Hg
                                     concentration must not exceed 18
                                     [micro]g/dscm, corrected to 18
                                     percent oxygen, at the outlet of
                                     the control device or the process
                                     gas stream.
13. Each existing batch kiln that   a. The 2-run block average PM
 is used to produce clay             emissions for the 3-hour peak
 refractory products on and after    emissions period must not exceed
 November 20, 2022.                  4.3 kg/Mg (9.5 lb/hr); and
                                    b. The 2-run block average Hg
                                     concentration for the 3-hour peak
                                     emissions period must not exceed 18
                                     [micro]g/dscm, corrected to 18
                                     percent oxygen, at the outlet of
                                     the control device or the process
                                     gas stream.
------------------------------------------------------------------------

0
18. Table 2 to Subpart SSSSS is revised to read as follows:

Table 2 to Subpart SSSSS of Part 63--Operating Limits

    As stated in Sec.  63.9788, you must comply with the operating
limits for affected sources in the following table:

------------------------------------------------------------------------
             For . . .                         You must . . .
------------------------------------------------------------------------
1. Each affected source listed in   a. Operate all affected sources
 Table 1 to this subpart.            according to the requirements to
                                     this subpart on and after the date
                                     on which the initial performance
                                     test is conducted or required to be
                                     conducted, whichever date is
                                     earlier; and
                                    b. Capture emissions and vent them
                                     through a closed system; and
                                    c. Operate each control device that
                                     is required to comply with this
                                     subpart on each affected source
                                     during all periods that the source
                                     is operating, except where
                                     specified in Sec.   63.9792(e),
                                     item 2 of this table, item 5 of
                                     Table 3 to this subpart, item 13 of
                                     Table 4 to this subpart, and item 6
                                     of Table 9 to this subpart for THC
                                     control devices on continuous kilns
                                     used to manufacture refractory
                                     products that use organic HAP; and
                                    d. Record all operating parameters
                                     specified in Table 8 to this
                                     subpart for the affected source;
                                     and
                                    e. Prepare and implement a written
                                     OM&M plan as specified in Sec.
                                     63.9792(d).
2. Each affected continuous kiln    a. Receive approval from the
 used to manufacture refractory      Administrator before taking the
 products that use organic HAP       control device on the affected kiln
 that is equipped with an emission   out of service for scheduled
 control device for THC.             maintenance, as specified in Sec.
                                     63.9792(e); and
                                    b. Before May 19, 2022, minimize HAP
                                     emissions from the affected kiln
                                     during all periods of scheduled
                                     maintenance of the kiln control
                                     device when the kiln is operating
                                     and the control device is out of
                                     service; on and after May 19, 2022,
                                     you must minimize HAP emissions
                                     during the period when the kiln is
                                     operating and the control device is
                                     out of service by complying with
                                     the applicable standard in Table 3
                                     to this subpart; and
                                    c. Minimize the duration of all
                                     periods of scheduled maintenance of
                                     the kiln control device when the
                                     kiln is operating and the control
                                     device is out of service. On and
                                     after May 19, 2022, the total time
                                     during which the kiln is operating
                                     and the control device is out of
                                     service for the each year on a 12-
                                     month rolling basis must not exceed
                                     750 hours.

3. Each new or existing curing      Satisfy the applicable operating
 oven, shape dryer, and kiln that    limits specified in items 4 through
 is used to process refractory       9 of this table.
 products that use organic HAP;
 each new or existing coking oven
 and defumer that is used to
 produce pitch-impregnated
 refractory products; each new
 shape preheater that is used to
 produce pitch-impregnated
 refractory products; AND each new
 or existing process unit that is
 exhausted to a thermal or
 catalytic oxidizer that also
 controls emissions from an
 affected shape preheater or pitch
 working tank.
4. Each affected continuous         Maintain the 3-hour block average
 process unit.                       organic HAP processing rate (pounds
                                     per hour) at or below the maximum
                                     organic HAP processing rate
                                     established during the most recent
                                     performance test.
5. Continuous process units that    Maintain the 3-hour block average
 are equipped with a thermal         operating temperature in the
 oxidizer.                           thermal oxidizer combustion chamber
                                     at or above the minimum allowable
                                     operating temperature for the
                                     oxidizer established during the
                                     most recent performance test.
6. Continuous process units that    a. Maintain the 3-hour block average
 are equipped with a catalytic       operating temperature at the inlet
 oxidizer.                           of the catalyst bed of the oxidizer
                                     at or above the minimum allowable
                                     operating temperature for the
                                     oxidizer established during the
                                     most recent performance test; and
                                    b. Check the activity level of the
                                     catalyst at least every 12 months.
7. Each affected batch process      For each batch cycle, maintain the
 unit.                               organic HAP processing rate (pounds
                                     per batch) at or below the maximum
                                     organic HAP processing rate
                                     established during the most recent
                                     performance test.
8. Batch process units that are     a. From the start of each batch
 equipped with a thermal oxidizer.   cycle until 3 hours have passed
                                     since the process unit reached
                                     maximum temperature, maintain the
                                     hourly average operating
                                     temperature in the thermal oxidizer
                                     combustion chamber at or above the
                                     minimum allowable operating
                                     temperature established for the
                                     corresponding period during the
                                     most recent performance test, as
                                     determined according to item 11 of
                                     Table 4 to this subpart; and
                                    b. For each subsequent hour of the
                                     batch cycle, maintain the hourly
                                     average operating temperature in
                                     the thermal oxidizer combustion
                                     chamber at or above the minimum
                                     allowable operating temperature
                                     established for the corresponding
                                     hour during the most recent
                                     performance test, as specified in
                                     item 13 of Table 4 to this subpart.
9. Batch process units that are     a. From the start of each batch
 equipped with a catalytic           cycle until 3 hours have passed
 oxidizer.                           since the process unit reached
                                     maximum temperature, maintain the
                                     hourly average operating
                                     temperature at the inlet of the
                                     catalyst bed at or above the
                                     minimum allowable operating
                                     temperature established for the
                                     corresponding period during the
                                     most recent performance test, as
                                     determined according to item 12 of
                                     Table 4 to this subpart; and
                                    b. For each subsequent hour of the
                                     batch cycle, maintain the hourly
                                     average operating temperature at
                                     the inlet of the catalyst bed at or
                                     above the minimum allowable
                                     operating temperature established
                                     for the corresponding hour during
                                     the most recent performance test,
                                     as specified in item 13 of Table 4
                                     to this subpart; and
                                    c. Check the activity level of the
                                     catalyst at least every 12 months.
10. Each new kiln that is used to   Satisfy the applicable operating
 process clay refractory products.   limits specified in items 11
                                     through 13 of this table.
11. Each affected kiln that is      a. Maintain the 3-hour block average
 equipped with a DLA.                pressure drop across the DLA at or
                                     above the minimum levels
                                     established during the most recent
                                     performance test; and
                                    b. Maintain free-flowing limestone
                                     in the feed hopper, silo, and DLA
                                     at all times; and
                                    c. Maintain the limestone feeder at
                                     or above the level established
                                     during the most recent performance
                                     test; and
                                    d. Use the same grade of limestone
                                     from the same source as was used
                                     during the most recent performance
                                     test and maintain records of the
                                     source and type of limestone used;
                                     and
                                    e. Maintain no VE from the stack.
12. Each affected kiln that is      a. Initiate corrective action within
 equipped with a DIFF or DLS/FF.     1 hour of a bag leak detection
                                     system alarm and complete
                                     corrective actions in accordance
                                     with the OM&M plan; and
                                    b. Verify at least once each 8-hour
                                     shift that lime is free-flowing by
                                     means of a visual check, checking
                                     the output of a load cell, carrier
                                     gas/lime flow indicator, or carrier
                                     gas pressure drop measurement
                                     system; and
                                    c. Record the lime feeder setting
                                     daily to verify that the feeder
                                     setting is at or above the level
                                     established during the most recent
                                     performance test.
13. Each affected kiln that is      a. Maintain the 3-hour block average
 equipped with a wet scrubber.       pressure drop across the scrubber,
                                     liquid pH, and liquid flow rate at
                                     or above the minimum levels
                                     established during the most recent
                                     performance test; and
                                    b. If chemicals are added to the
                                     scrubber liquid, maintain the 3-
                                     hour block average chemical feed
                                     rate at or above the minimum
                                     chemical feed rate established
                                     during the most recent performance
                                     test.
14. Each new and existing kiln      Maintain the average carbon flow
 used to process clay refractory     rate for each 3-hour block period
 products that is equipped with an   at or above the average carbon flow
 activated carbon injection system.  rate established during the Hg
                                     performance test in which
                                     compliance was demonstrated.

15. Each new and existing kiln      Maintain no VE from the stack.
 that is used to process clay
 refractory products with no add-
 on control and each existing kiln
 that is equipped with a DLA.
16. Each existing kiln used to      Initiate corrective action within 1
 process clay refractory products    hour of a bag leak detection system
 that is equipped with a FF.         alarm and complete corrective
                                     actions in accordance with the OM&M
                                     plan OR maintain no VE from the
                                     stack.
17. Each existing kiln used to      Maintain the 3-hour block average
 process clay refractory products    pressure drop across the scrubber
 that is equipped with a wet         and liquid flow rate at or above
 scrubber.                           the minimum levels established
                                     during the most recent performance
                                     test.
------------------------------------------------------------------------

0
19. Table 3 to Subpart SSSSS is revised to read as follows:

Table 3 to Subpart SSSSS of Part 63--Work Practice Standards

    As stated in Sec.  63.9788, you must comply with the work practice
standards for affected sources in the following table:

----------------------------------------------------------------------------------------------------------------
                                                                           According to one of the following
                For . . .                        You must . . .                    requirements . . .
----------------------------------------------------------------------------------------------------------------
1. Each basket or container that is used  a. Control POM emissions     i. At least every 10 preheating cycles,
 for holding fired refractory shapes in    from any affected shape      clean the residual pitch from the
 an existing shape preheater and           preheater.                   surfaces of the basket or container by
 autoclave during the pitch impregnation                                abrasive blasting prior to placing the
 process.                                                               basket or container in the affected
                                                                        shape preheater; or
                                                                       ii. At least every 10 preheating cycles,
                                                                        subject the basket or container to a
                                                                        thermal process cycle that meets or
                                                                        exceeds the operating temperature and
                                                                        cycle time of the affected preheater,
                                                                        AND is conducted in a process unit that
                                                                        is exhausted to a thermal or catalytic
                                                                        oxidizer that is comparable to the
                                                                        control device used on an affected
                                                                        defumer or coking oven; or
                                                                       iii. Capture emissions from the affected
                                                                        shape preheater and vent them to the
                                                                        control device that is used to control
                                                                        emissions from an affected defumer or
                                                                        coking oven, or to a comparable thermal
                                                                        or catalytic oxidizer.
2. Each new or existing pitch working     Control POM emissions......  Capture emissions from the affected pitch
 tank.                                                                  working tank and vent them to the
                                                                        control device that is used to control
                                                                        emissions from an affected defumer or
                                                                        coking oven, OR to a comparable thermal
                                                                        or catalytic oxidizer.
3. Each new or existing chromium          Minimize fuel-based HAP      Before May 19, 2022, use natural gas, or
 refractory products kiln.                 emissions.                   equivalent, as the kiln fuel, except
                                                                        during periods of natural gas
                                                                        curtailment or supply interruption, as
                                                                        defined in Sec.   63.9824. On and after
                                                                        May 19, 2022, use natural gas, or
                                                                        equivalent, as the kiln fuel at all
                                                                        times.
4. Each existing clay refractory          Minimize fuel-based HAP      Before May 19, 2022, use natural gas, or
 products kiln.                            emissions.                   equivalent, as the kiln fuel, except
                                                                        during periods of natural gas
                                                                        curtailment or supply interruption, as
                                                                        defined in Sec.   63.9824. On and after
                                                                        May 19, 2022, use natural gas, or
                                                                        equivalent, as the kiln fuel at all
                                                                        times.
5. Each affected continuous kiln used to  Minimize HAP emissions.....  i. Before May 19, 2022, minimize HAP
 manufacture refractory products that                                   emissions from the affected kiln during
 use organic HAP that is equipped with                                  all periods of scheduled maintenance of
 an emission control device for THC with                                the kiln control device when the kiln is
 Administrator approval to take the                                     operating and the control device is out
 control device out of service for                                      of service consistent with your OM&M
 scheduled maintenance, as specified in                                 plan and minimize the time period during
 Sec.   63.9792(e).                                                     which the kiln is operating and the
                                                                        control device is out of service; or
                                                                       ii. On and after May 19, 2022, minimize
                                                                        HAP emissions during the period when the
                                                                        kiln is operating and the control device
                                                                        is out of service by maintaining the
                                                                        organic HAP processing rate (lb/hr)
                                                                        below the average organic HAP processing
                                                                        rate based on actual production on a 6-
                                                                        month rolling basis (not to include
                                                                        periods of kiln shut down) or below the
                                                                        organic HAP processing rate (lb/hr) that
                                                                        coincides with the lowest hour of the
                                                                        most recent 3-hour performance test,
                                                                        whichever is lower); and minimize the
                                                                        time period during which the kiln is
                                                                        operating and the control device is out
                                                                        of service, not to exceed 750 hours for
                                                                        the year (on a 12-month rolling basis).
6. Each new or existing curing oven,      Minimize fuel-based HAP      Use natural gas, or equivalent, as the
 shape dryer, and kiln that is used to     emissions.                   kiln fuel, at all times.
 process refractory products that use
 organic HAP, on and after Novermber 19,
 2021.
----------------------------------------------------------------------------------------------------------------

0
20. Table 4 to Subpart SSSSS is revised to read as follows:

Table 4 to Subpart SSSSS to Part 63--Requirements for Performance Tests

    As stated in Sec.  63.9800, you must comply with the requirements
for performance tests for affected sources in the following table:

----------------------------------------------------------------------------------------------------------------
                                                                                According to the following
            For . . .               You must . . .          Using . . .                requirements . . .
----------------------------------------------------------------------------------------------------------------
1. Each affected source listed    a. Conduct          i. The requirements of   (1) Record the date of the test;
 in Table 1 to this subpart.       performance tests.  the general provisions   and
                                                       in subpart A of this    (2) Identify the emission source
                                                       part and the             that is tested; and
                                                       requirements to this    (3) Collect and record the
                                                       subpart.                 corresponding operating
                                                                                parameter and emission test data
                                                                                listed in this table for each
                                                                                run of the performance test; and
                                                                               (4) Repeat the performance test
                                                                                at least every 5 years; and
                                                                               (5) Repeat the performance test
                                                                                before changing the parameter
                                                                                value for any operating limit
                                                                                specified in your OM&M plan; and
                                                                               (6) If complying with the THC
                                                                                concentration or THC percentage
                                                                                reduction limits specified in
                                                                                items 2 through 9 of Table 1 to
                                                                                this subpart, repeat the
                                                                                performance test under the
                                                                                conditions specified in items
                                                                                2.a.2. and 2.a.3. of this table;
                                                                                and
                                                                               (7) If complying with the
                                                                                emission limits for new clay
                                                                                refractory products kilns
                                                                                specified in items 10 and 11 of
                                                                                Table 1 to this subpart, repeat
                                                                                the performance test under the
                                                                                conditions specified in items
                                                                                14.a.i.4. and 17.a.i.4. of this
                                                                                table.
                                  b. Select the       i. Method 1 or 1A of 40  (1) To demonstrate compliance
                                   locations of        CFR part 60, appendix    with the percentage reduction
                                   sampling ports      A-1.                     limits specified in items 2.b.,
                                   and the number of                            3.b., 6.b., 7.b., 10, and 11 of
                                   traverse points.                             Table 1 to this subpart, locate
                                                                                sampling sites at the inlet of
                                                                                the control device and at either
                                                                                the outlet of the control device
                                                                                or at the stack prior to any
                                                                                releases to the atmosphere; and
                                                                               (2) To demonstrate compliance
                                                                                with any other emission limit
                                                                                specified in Table 1 to this
                                                                                subpart, locate all sampling
                                                                                sites at the outlet of the
                                                                                control device or at the stack
                                                                                prior to any releases to the
                                                                                atmosphere.
                                  c. Determine gas    Method 2, 2A, 2C, 2D,    Measure gas velocities and
                                   velocity and        2F, or 2G of 40 CFR      volumetric flow rates at 1-hour
                                   volumetric flow     part 60, appendix A-1    intervals throughout each test
                                   rate.               and A-2.                 run.
                                  d. Conduct gas      i. Method 3, 3A, or 3B   As specified in the applicable
                                   molecular weight    of 40 CFR part 60,       test method.
                                   analysis.           appendix A-2; or.       You may use the manual procedures
                                                      ii. ASME PTC 19.10-       (but not instrumental
                                                       1981--Part 10 \a\.       procedures) of ASME PTC 19.10-
                                                                                1981--Part 10 \a\ as an
                                                                                alternative to EPA Method 3B.
                                  e. Measure gas      Method 4 of 40 CFR part  As specified in the applicable
                                   moisture content.   60, appendix A-3.        test method.

2. Each new or existing curing    a. Conduct          .......................  (1) Conduct the performance test
 oven, shape dryer, and kiln       performance tests.                           while the source is operating at
 that is used to process                                                        the maximum organic HAP
 refractory products that use                                                   processing rate, as defined in
 organic HAP; each new or                                                       Sec.   63.9824, reasonably
 existing coking oven and                                                       expected to occur; and
 defumer that is used to produce                                               (2) Repeat the performance test
 pitch-impregnated refractory                                                   before starting production of
 products; each new shape                                                       any product for which the
 preheater that is used to                                                      organic HAP processing rate is
 produce pitch-impregnated                                                      likely to exceed the maximum
 refractory products; AND each                                                  organic HAP processing rate
 new or existing process unit                                                   established during the most
 that is exhausted to a thermal                                                 recent performance test by more
 or catalytic oxidizer that also                                                than 10 percent, as specified in
 controls emissions from an                                                     Sec.   63.9798(c); and
 affected shape preheater or                                                   (3) Repeat the performance test
 pitch working tank.                                                            on any affected uncontrolled
                                                                                kiln following process changes
                                                                                (e.g., shorter curing oven cycle
                                                                                time) that could increase
                                                                                organic HAP emissions from the
                                                                                affected kiln, as specified in
                                                                                Sec.   63.9798(d).
                                  b. Satisfy the
                                   applicable
                                   requirements
                                   listed in items 3
                                   through 13 of
                                   this table.
3. Each affected continuous       a. Perform a        The appropriate test     Each test run must be at least 1
 process unit.                     minimum of 3 test   methods specified in     hour in duration.
                                   runs.               items 1, 4, and 5 of
                                                       this table.
                                  b. Establish the    i. Method 311 of 40 CFR  (1) Calculate and record the
                                   operating limit     part 63, appendix A,     organic HAP content of all
                                   for the maximum     OR material safety       refractory shapes that are
                                   organic HAP         data sheets (MSDS), OR   processed during the performance
                                   processing rate.    product labels to        test, based on the mass fraction
                                                       determine the mass       of organic HAP in the resins,
                                                       fraction of organic      binders, or additives; the mass
                                                       HAP in each resin,       fraction of each resin, binder,
                                                       binder, or additive;     or additive, in the product; and
                                                       and                      the process feed rate; and
                                                      ii. Product formulation  (2) Calculate and record the
                                                       data that specify the    organic HAP processing rate
                                                       mass fraction of each    (pounds per hour) for each test
                                                       resin, binder, and       run; and
                                                       additive in the
                                                       products that are
                                                       processed during the
                                                       performance test; and.
                                                      iii. Process feed rate   (3) Calculate and record the
                                                       data (tons per hour).    maximum organic HAP processing
                                                                                rate as the average of the
                                                                                organic HAP processing rates for
                                                                                the three test runs.
                                  c. Record the       Process data...........  During each test run and at least
                                   operating                                    once per hour, record the
                                   temperature of                               operating temperature in the
                                   the affected                                 highest temperature zone of the
                                   source.                                      affected source.
4. Each continuous process unit   a. Measure THC      i. Method 25A of 40 CFR  (1) Each minute, measure and
 that is subject to the THC        concentrations at   part 60, appendix A-7.   record the concentrations of THC
 emission limit listed in item     the outlet of the                            in the exhaust stream; and
 2.a., 3.a., 4, or 5 of Table 1    control device or                           (2) Provide at least 50 1-minute
 to this subpart.                  in the stack.                                measurements for each valid
                                                                                hourly average THC
                                                                                concentration.
                                  b. Measure oxygen   i. Method 3A of 40 CFR   (1) Each minute, measure and
                                   concentrations at   part 60, appendix A-2.   record the concentrations of
                                   the outlet of the                            oxygen in the exhaust stream;
                                   control device or                            and
                                   in the stack.                               (2) Provide at least 50 1-minute
                                                                                measurements for each valid
                                                                                hourly average THC
                                                                                concentration.

                                  c. Determine the    i. Equation 1 of Sec.    (1) Calculate the hourly average
                                   hourly average      63.9800(g)(1); and       THC concentration for each hour
                                   THC                ii. The 1-minute THC      of the performance test as the
                                   concentration,      and oxygen               average of the 1-minute THC
                                   corrected to 18     concentration data.      measurements; and
                                   percent oxygen.                             (2) Calculate the hourly average
                                                                                oxygen concentration for each
                                                                                hour of the performance test as
                                                                                the average of the 1-minute
                                                                                oxygen measurements; and
                                                                               (3) Correct the hourly average
                                                                                THC concentrations to 18 percent
                                                                                oxygen using Equation 1 of Sec.
                                                                                63.9800(g)(1).
                                  d. Determine the 3- The hourly average       Calculate the 3-hour block
                                   hour block          concentration of THC,    average THC emission
                                   average THC         corrected to 18          concentration, corrected to 18
                                   emission            percent oxygen, for      percent oxygen, as the average
                                   concentration,      each test run.           of the hourly average THC
                                   corrected to 18                              emission concentrations,
                                   percent oxygen.                              corrected to 18 percent oxygen.
5. Each continuous process unit   a. Measure THC      i. Method 25A of 40 CFR  (1) Each minute, measure and
 that is subject to the THC        concentrations at   part 60, appendix A-7.   record the concentrations of THC
 percentage reduction limit        the inlet and                                at the inlet and outlet of the
 listed in item 2.b. or 3.b. of    outlet of the                                control device; and
 Table 1 to this subpart.          control device.                             (2) Provide at least 50 1-minute
                                                                                measurements for each valid
                                                                                hourly average THC concentration
                                                                                at the control device inlet and
                                                                                outlet.
                                  b. Determine the    i. The 1-minute THC      Calculate the hourly THC mass
                                   hourly THC mass     concentration data at    emissions rates at the control
                                   emissions rates     the control device       device inlet and outlet for each
                                   at the inlet and    inlet and outlet; and    hour of the performance test.
                                   outlet of the      ii. The volumetric flow
                                   control device.     rates at the control
                                                       device inlet and
                                                       outlet.
                                  c. Determine the 3- i. The hourly THC mass   (1) Calculate the hourly THC
                                   hour block          emissions rates at the   percentage reduction for each
                                   average THC         inlet and outlet of      hour of the performance test
                                   percentage          the control device.      using Equation 2 of Sec.
                                   reduction.                                   63.9800(g)(1); and
                                                                               (2) Calculate the 3-hour block
                                                                                average THC percentage
                                                                                reduction.
6. Each continuous process unit   a. Establish the    i. Continuous recording  (1) At least every 15 minutes,
 that is equipped with a thermal   operating limit     of the output of the     measure and record the thermal
 oxidizer.                         for the minimum     combustion chamber       oxidizer combustion chamber
                                   allowable thermal   temperature              temperature; and
                                   oxidizer            measurement device.     (2) Provide at least one
                                   combustion                                   measurement during at least
                                   chamber                                      three 15-minute periods per hour
                                   temperature.                                 of testing; and
                                                                               (3) Calculate the hourly average
                                                                                thermal oxidizer combustion
                                                                                chamber temperature for each
                                                                                hour of the performance test;
                                                                                and
                                                                               (4) Calculate the minimum
                                                                                allowable combustion chamber
                                                                                temperature as the average of
                                                                                the combustion chamber
                                                                                temperatures for the three test
                                                                                runs, minus 14 [deg]C (25
                                                                                [deg]F).
7. Each continuous process unit   a. Establish the    i. Continuous recording  (1) At least every 15 minutes,
 that is equipped with a           operating limit     of the output of the     measure and record the
 catalytic oxidizer.               for the minimum     temperature              temperature at the inlet of the
                                   allowable           measurement device.      catalyst bed; and
                                   temperature at                              (2) Provide at least one catalyst
                                   the inlet of the                             bed inlet temperature
                                   catalyst bed.                                measurement during at least
                                                                                three 15-minute periods per hour
                                                                                of testing; and
                                                                               (3) Calculate the hourly average
                                                                                catalyst bed inlet temperature
                                                                                for each hour of the performance
                                                                                test; and
                                                                               (4) Calculate the minimum
                                                                                allowable catalyst bed inlet
                                                                                temperature as the average of
                                                                                the catalyst bed inlet
                                                                                temperatures for the three test
                                                                                runs, minus 14 [deg]C (25
                                                                                [deg]F).
8. Each affected batch process    a. Perform a        i. The appropriate test  (1) Each test run must be
 unit.                             minimum of two      methods specified in     conducted over a separate batch
                                   test runs.          items 1, 9, and 10 of    cycle unless you satisfy the
                                                       this table.              requirements of Sec.
                                                                                63.9800(f)(3) and (4); and
                                                                               (2) Each test run must begin with
                                                                                the start of a batch cycle,
                                                                                except as specified in item
                                                                                8.a.i.4. of this table; and
                                                                               (3) Each test run must continue
                                                                                until the end of the batch
                                                                                cycle, except as specified in
                                                                                items 8.a.i.4. and 8.a.i.5. of
                                                                                this table; and
                                                                               (4) If you develop an emissions
                                                                                profile, as described in Sec.
                                                                                63.9802(a), AND for sources
                                                                                equipped with a thermal or
                                                                                catalytic oxidizer, you do not
                                                                                reduce the oxidizer operating
                                                                                temperature, as specified in
                                                                                item 13 of this table, you can
                                                                                limit each test run to the 3-
                                                                                hour peak THC emissions period;
                                                                                and

                                                                               (5) If you do not develop an
                                                                                emissions profile, a test run
                                                                                can be stopped, and the results
                                                                                of that run considered complete,
                                                                                if you measure emissions
                                                                                continuously until at least 3
                                                                                hours after the affected process
                                                                                unit has reached maximum
                                                                                temperature, AND the hourly
                                                                                average THC mass emissions rate
                                                                                has not increased during the 3-
                                                                                hour period since maximum
                                                                                process temperature was reached,
                                                                                and the hourly average
                                                                                concentrations of THC at the
                                                                                inlet of the control device have
                                                                                not exceeded 20 ppmvd, corrected
                                                                                to 18 percent oxygen, during the
                                                                                3-hour period since maximum
                                                                                process temperature was reached
                                                                                or the hourly average THC
                                                                                percentage reduction has been at
                                                                                least 95 percent during the 3-
                                                                                hour period since maximum
                                                                                process temperature was reached,
                                                                                AND, for sources equipped with a
                                                                                thermal or catalytic oxidizer,
                                                                                at least 1 hour has passed since
                                                                                any reduction in the operating
                                                                                temperature of the oxidizer, as
                                                                                specified in item 13 of this
                                                                                table.
                                  b. Establish the    i. Method 311 of 40 CFR  (1) Calculate and record the
                                   operating limit     part 63, appendix A,     organic HAP content of all
                                   for the maximum     OR MSDS, OR product      refractory shapes that are
                                   organic HAP         labels to determine      processed during the performance
                                   processing rate.    the mass fraction of     test, based on the mass fraction
                                                       organic HAP in each      of HAP in the resins, binders,
                                                       resin, binder, or        or additives; the mass fraction
                                                       additive; and            of each resin, binder, or
                                                                                additive, in the product, and
                                                                                the batch weight prior to
                                                                                processing; and
                                                      ii. Product formulation  (2) Calculate and record the
                                                       data that specify the    organic HAP processing rate
                                                       mass fraction of each    (pounds per batch) for each test
                                                       resin, binder, and       run; and
                                                       additive in the         (3) Calculate and record the
                                                       products that are        maximum organic HAP processing
                                                       processed during the     rate as the average of the
                                                       performance test; and.   organic HAP processing rates for
                                                      iii. Batch weight         the two test runs.
                                                       (tons).
                                  c. Record the       Process data...........  Record the total elapsed time
                                   batch cycle time.                            from the start to the completion
                                                                                of the batch cycle.
                                  d. Record the       Process data...........  Record the operating temperature
                                   operating                                    of the affected source at least
                                   temperature of                               once every hour from the start
                                   the affected                                 to the completion of the batch
                                   source.                                      cycle.
9. Each batch process unit that   a. Measure THC      i. Method 25A of 40 CFR  (1) Each minute, measure and
 is subject to the THC emission    concentrations at   part 60, appendix A-7.   record the concentrations of THC
 limit listed in item 6.a.,        the outlet of the                            in the exhaust stream; and
 7.a., 8, or 9 of Table 1 to       control device or                           (2) Provide at least 50 1-minute
 this subpart.                     in the stack.                                measurements for each valid
                                                                                hourly average THC
                                                                                concentration.
                                  b. Measure oxygen   i. Method 3A of 40 CFR   (1) Each minute, measure and
                                   concentrations at   part 60, appendix A-2.   record the concentrations of
                                   the outlet of the                            oxygen in the exhaust stream;
                                   control device or                            and
                                   in the stack.                               (2) Provide at least 50 1-minute
                                                                                measurements for each valid
                                                                                hourly average oxygen
                                                                                concentration.
                                  c. Determine the    i. Equation 1 of Sec.    (1) Calculate the hourly average
                                   hourly average      63.9800(g)(1); and       THC concentration for each hour
                                   THC                ii. The 1-minute THC      of the performance test as the
                                   concentration,      and oxygen               average of the 1-minute THC
                                   corrected to 18     concentration data.      measurements; and
                                   percent oxygen.                             (2) Calculate the hourly average
                                                                                oxygen concentration for each
                                                                                hour of the performance test as
                                                                                the average of the 1-minute
                                                                                oxygen measurements; and
                                                                               (3) Correct the hourly average
                                                                                THC concentrations to 18 percent
                                                                                oxygen using Equation 1 of Sec.
                                                                                63.9800(g)(1).
                                  d. Determine the 3- The hourly average THC   Select the period of 3
                                   hour peak THC       concentrations,          consecutive hours over which the
                                   emissions period    corrected to 18          sum of the hourly average THC
                                   for each test run.  percent oxygen.          concentrations, corrected to 18
                                                                                percent oxygen, is greater than
                                                                                the sum of the hourly average
                                                                                THC emission concentrations,
                                                                                corrected to 18 percent oxygen,
                                                                                for any other period of 3
                                                                                consecutive hours during the
                                                                                test run.
                                  e. Determine the    The hourly average THC   Calculate the average of the
                                   average THC         emission                 hourly average THC
                                   concentration,      concentrations,          concentrations, corrected to 18
                                   corrected to 18     corrected to 18          percent oxygen, for the 3 hours
                                   percent oxygen,     percent oxygen, for      of the peak emissions period for
                                   for each test run.  the 3-hour peak THC      each test run.
                                                       emissions period.

                                  f. Determine the 2- The average THC          Calculate the average of the
                                   run block average   concentration,           average THC concentrations,
                                   THC                 corrected to 18          corrected to 18 percent oxygen,
                                   concentration,      percent oxygen, for      for each run.
                                   corrected to 18     each test run.
                                   percent oxygen,
                                   for the emission
                                   test.
10. Each batch process unit that  a. Measure THC      i. Method 25A of 40 CFR  (1) Each minute, measure and
 is subject to the THC             concentrations at   part 60, appendix A-7.   record the concentrations of THC
 percentage reduction limit        the inlet and                                at the control device inlet and
 listed in item 6.b. or 7.b. of    outlet of the                                outlet; and
 Table 1 to this subpart.          control device.                             (2) Provide at least 50 1-minute
                                                                                measurements for each valid
                                                                                hourly average THC concentration
                                                                                at the control device inlet and
                                                                                outlet.
                                  b. Determine the    i. The 1-minute THC      (1) Calculate the hourly mass
                                   hourly THC mass     concentration data at    emissions rates at the control
                                   emissions rates     the control device       device inlet and outlet for each
                                   at the control      inlet and outlet; and    hour of the performance test.
                                   device inlet and   ii. The volumetric flow
                                   outlet.             rates at the control
                                                       device inlet and
                                                       outlet.
                                  c. Determine the 3- The hourly THC mass      Select the period of 3
                                   hour peak THC       emissions rates at the   consecutive hours over which the
                                   emissions period    control device inlet.    sum of the hourly THC mass
                                   for each test run.                           emissions rates at the control
                                                                                device inlet is greater than the
                                                                                sum of the hourly THC mass
                                                                                emissions rates at the control
                                                                                device inlet for any other
                                                                                period of 3 consecutive hours
                                                                                during the test run.
                                  d. Determine the    i. Equation 2 of Sec.    Calculate the average THC
                                   average THC         63.9800(g)(2); and       percentage reduction for each
                                   percentage         ii. The hourly THC mass   test run using Equation 2 of
                                   reduction for       emissions rates at the   Sec.   63.9800(g)(2).
                                   each test run.      control device inlet
                                                       and outlet for the 3-
                                                       hour peak THC
                                                       emissions period.
                                  e. Determine the 2- The average THC          Calculate the average of the
                                   run block average   percentage reduction     average THC percentage
                                   THC percentage      for each test run.       reductions for each test run.
                                   reduction for the
                                   emission test.
11. Each batch process unit that  a. Establish the    i. Continuous recording  (1) At least every 15 minutes,
 is equipped with a thermal        operating limit     of the output of the     measure and record the thermal
 oxidizer.                         for the minimum     combustion chamber       oxidizer combustion chamber
                                   thermal oxidizer    temperature              temperature; and
                                   combustion          measurement device.     (2) Provide at least one
                                   chamber                                      temperature measurement during
                                   temperature.                                 at least three 15-minute periods
                                                                                per hour of testing; and
                                                                               (3) Calculate the hourly average