National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units: Final Repeal

0 2. Amend Sec. 63.14 by revising paragraph (f)(1) to read as follows:

Sec. 63.14 Incorporation by reference.

* * * * *

(f) * * *

(1) ANSI/ASME PTC 19.10-1981, Flue and Exhaust Gas Analyses [Part 10, Instruments and Apparatus], issued August 31, 1981; Sec. Sec. 63.116(c) and (h); 63.128(a); 63.145(i); 63.309(k); 63.365(b); 63.457(k); 63.490(g); 63.772(e) and (h); 63.865(b); 63.997(e); 63.1282(d) and (g); 63.1450(a), (b), (d), (e), (g); 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); 63.5160(d); table 4 to subpart UUUU; tables 5, 16, and 17 to subpart XXXX; table 3 to subpart YYYY; table 4 to subpart AAAAA; Sec. 63.7322(b); table 5 to subpart DDDDD; Sec. Sec. 63.7822(b); 63.7824(e); 63.7825(b); 63.8000(d); table 4 to subpart JJJJJ; table 4 to subpart KKKKK; Sec. Sec. 63.9307(c); 63.9323(a); 63.9621(b) and (c); table 4 to subpart SSSSS; table 5 of subpart UUUUU; table 1 to subpart ZZZZZ; Sec. Sec. 63.11148(e); 63.11155(e); 63.11162(f); 63.11163(g); table 4 to subpart JJJJJJ; Sec. Sec. 63.11410(j); 63.11551(a); 63.11646(a); 63.11945. * * * * *

Subpart UUUUU--National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units

0 3. Amend Sec. 63.9991 by revising paragraph (a)(2) to read as follows:

Sec. 63.9991 What emission limitations, work practice standards, and operating limits must I meet?

(a) * * *

(2) You must meet each operating limit in table 4 to this subpart that applies to your EGU. * * * * *

0 4. Amend Sec. 63.10000 by revising paragraphs (c)(1)(i) and (iv), (c)(2)(i) and (ii), and (d)(5)(i) to read as follows:

Sec. 63.10000 What are my general requirements for complying with this subpart?

* * * * *

(c) * * *

(1) * * *

(i) For a coal-fired or solid oil-derived fuel-fired EGU or IGCC EGU, you may conduct initial performance testing in accordance with Sec. 63.10005(h), to determine whether the EGU qualifies as a low emitting EGU (LEE) for one or more applicable emission limits, except as otherwise provided in paragraphs (c)(1)(i)(A) and (B) of this section:

(A) Except as provided in paragraph (c)(1)(i)(C) of this section, you may not pursue the LEE option if your coal-fired, IGCC, or solid oil-derived fuel-fired EGU is equipped with a main stack and a bypass stack or bypass duct configuration that allows the effluent to bypass any pollutant control device.

(B) You may not pursue the LEE option for Hg if your coal-fired, solid oil-derived fuel-fired EGU or IGCC EGU is new.

(C) You may pursue the LEE option provided that:

(1) Your EGU's control device bypass emissions are measured in the bypass stack or duct or your control device bypass exhaust is routed through the EGU main stack so that emissions are measured during the bypass event; or

(2) Except for hours during which only clean fuel is combusted, you bypass your EGU control device only during emergency periods for no more than a total of 2 percent of your EGU's annual operating hours; you use clean fuels to the maximum extent possible during an emergency period; and you prepare and submit a report describing the emergency event, its cause, corrective action taken, and estimates of emissions released during the emergency event. You must include these emergency emissions along with performance test results in assessing whether your EGU maintains LEE status. * * * * *

(iv) If your coal-fired or solid oil derived fuel-fired or IGCC EGU does not qualify as a LEE for total non-mercury HAP metals, individual non-mercury HAP metals, or filterable particulate matter (PM), you must demonstrate compliance through an initial performance test and you must monitor continuous performance through either use of a particulate matter continuous parametric monitoring system (PM CPMS), a PM CEMS, or, for an existing EGU, compliance performance testing repeated quarterly. * * * * *

(2) * * *

(i) For an existing liquid oil-fired unit, you may conduct the performance testing in accordance with Sec. 63.10005(h), to determine whether the unit qualifies as a LEE for one or more pollutants. For a qualifying LEE for Hg emissions limits, you must conduct a 30-day performance test using Method 30B at least once every 12 calendar months to demonstrate continued LEE status. For a qualifying LEE of any other applicable emissions limits, you must conduct a performance test at least once every 36 calendar months to demonstrate continued LEE status.

(ii) If your liquid oil-fired unit does not qualify as a LEE for total HAP metals (including mercury), individual metals (including mercury), or filterable PM you must demonstrate compliance through an initial performance test and you must monitor continuous performance through either use of a PM CPMS, a PM CEMS, or, for an existing EGU, performance testing conducted quarterly. * * * * *

(d) * * *

(5) * * *

(i) Installation of the CMS or sorbent trap monitoring system sampling probe or other interface at a measurement location relative to each affected process unit such that the measurement is representative of control of the exhaust emissions (e.g., on or downstream of the last control device). See Sec. 63.10010(a) for further details. For PM CPMS installations, follow the procedures in Sec. 63.10010(h). * * * * *

0 5. Amend Sec. 63.10005 by revising paragraph (a)(1), introductory text of paragraph (b), paragraph (c), and introductory text of paragraphs (d)(2), (h), and (h)(1) to read as follows:

Sec. 63.10005 What are my initial compliance requirements and by what date must I conduct them?

(a) * * *

(1) To demonstrate initial compliance with an applicable emissions limit in table 1 or 2 to this subpart using stack testing, the initial performance test generally consists of three runs at specified process operating conditions using approved methods. If you are required to establish operating limits (see paragraph (d) of this section and table 4 to this subpart), you must collect all applicable parametric data during the performance test period. Also, if you choose to comply with an electrical output-based emission limit, you must collect hourly electrical load data during the test period. * * * * *

(b) Performance testing requirements. If you choose to use performance testing to demonstrate initial compliance with the applicable emissions limits in tables 1 and 2 to this subpart for your EGUs, you must conduct the tests according to Sec. 63.10007 and table 5 to this subpart. Notwithstanding the preceding requirements, when table 5 specifies the use of isokinetic EPA test Method 5, 5D, 5I, 26A, or 29 for a stack test, if concurrent measurement of the stack gas flow rate or moisture content is needed to convert the pollutant concentrations to units of the standard, separate determination of these parameters using EPA test Method 2 or EPA test Method

4 is not necessary. Instead, the stack gas flow rate and moisture content can be determined from data that are collected during the EPA test Method 5, 5D, 5I, 6, 26A, or 29 test (e.g., pitot tube (delta P) readings, moisture collected in the impingers). For the purposes of the initial compliance demonstration, you may use test data and results from a performance test conducted prior to the date on which compliance is required as specified in Sec. 63.9984, provided that the following conditions are fully met: * * * * *

(c) Operating limits. In accordance with Sec. 63.10010 and table 4 to this subpart, you may be required to establish operating limits using PM CPMS and using site-specific monitoring for certain liquid oil-fired units as part of your initial compliance demonstration.

(d) * * *

(2) For affected coal-fired or solid oil-derived fuel-fired EGUs that demonstrate compliance with the applicable emission limits for total non-mercury HAP metals, individual non-mercury HAP metals, total HAP metals, individual HAP metals, or filterable PM listed in table 1 or 2 to this subpart using initial performance testing and continuous monitoring with PM CPMS: * * * * *

(h) Low emitting EGUs. The provisions of this paragraph (h) apply to pollutants with emissions limits from new EGUs except Hg and to all pollutants with emissions limits from existing EGUs. You may pursue this compliance option unless prohibited pursuant to Sec. 63.10000(c)(1)(i).

(1) An EGU may qualify for low emitting EGU (LEE) status for Hg, HCl, HF, filterable PM, total non-Hg HAP metals, or individual non-Hg HAP metals (or total HAP metals or individual HAP metals, for liquid oil-fired EGUs) if you collect performance test data that meet the requirements of this paragraph (h) and if those data demonstrate: * * * * *

0 6. Amend Sec. 63.10006 by revising paragraph (a) to read as follows:

Sec. 63.10006 When must I conduct subsequent performance tests or tune-ups?

(a) For liquid oil-fired, solid oil-derived fuel-fired and coal- fired EGUs and IGCC units using PM CPMS to monitor continuous performance with an applicable emission limit as provided for under Sec. 63.10000(c), you must conduct all applicable performance tests according to table 5 to this subpart and Sec. 63.10007 at least every year. * * * * *

0 7. Amend Sec. 63.10007 by revising paragraphs (a)(3) and (c) to read as follows:

Sec. 63.10007 What methods and other procedures must I use for the performance tests?

(a) * * *

(3) For establishing operating limits with particulate matter continuous parametric monitoring system (PM CPMS) to demonstrate compliance with a PM or non-Hg metals emissions limit, operate the unit at maximum normal operating load conditions during the performance test period. Maximum normal operating load will be generally between 90 and 110 percent of design capacity but should be representative of site specific normal operations during each test run. * * * * *

(c) If you choose the filterable PM method to comply with the PM emission limit and demonstrate continuous performance using a PM CPMS as provided for in Sec. 63.10000(c), you must also establish an operating limit according to Sec. 63.10011(b), Sec. 63.10023, and tables 4 and 6 to this subpart. Should you desire to have operating limits that correspond to loads other than maximum normal operating load, you must conduct testing at those other loads to determine the additional operating limits. * * * * *

0 8. Amend Sec. 63.10010 by revising the introductory text of paragraphs (a), (h), and (i) to read as follows:

Sec. 63.10010 What are my monitoring, installation, operation, and maintenance requirements?

(a) Flue gases from the affected units under this subpart exhaust to the atmosphere through a variety of different configurations, including but not limited to individual stacks, a common stack configuration or a main stack plus a bypass stack. For the CEMS, PM CPMS, and sorbent trap monitoring systems used to provide data under this subpart, the continuous monitoring system installation requirements for these exhaust configurations are as follows: * * * * * * * * * *

(h) If you use a PM CPMS to demonstrate continuous compliance with an operating limit, you must install, calibrate, maintain, and operate the PM CPMS and record the output of the system as specified in paragraphs (h)(1) through (5) of this section. * * * * *

(i) If you choose to comply with the PM filterable emissions limit in lieu of metal HAP limits, you may choose to install, certify, operate, and maintain a PM CEMS and record and report the output of the PM CEMS as specified in paragraphs (i)(1) through (8) of this section. Compliance with the applicable PM emissions limit in table 1 or 2 to this subpart is determined on a 30-boiler operating day rolling average basis. * * * * *

0 9. Amend Sec. 63.10011 by revising paragraph (b) to read as follows:

Sec. 63.10011 How do I demonstrate initial compliance with the emissions limits and work practice standards?

* * * * *

(b) If you are subject to an operating limit in table 4 to this subpart, you demonstrate initial compliance with HAP metals or filterable PM emission limit(s) through performance stack tests and you elect to use a PM CPMS to demonstrate continuous performance, or if, for a liquid oil fired EGU, and you use quarterly stack testing for HCl and HF plus site-specific parameter monitoring to demonstrate continuous performance, you must also establish a site-specific operating limit, in accordance with Sec. 63.10007 and table 6 to this subpart. You may use only the parametric data recorded during successful performance tests (i.e., tests that demonstrate compliance with the applicable emissions limits) to establish an operating limit. * * * * *

0 10. Amend Sec. 63.10020 by revising paragraph (e)(3)(i) introductory text to read as follows:

Sec. 63.10020 How do I monitor and collect data to demonstrate continuous compliance?

* * * * *

(e) * * *

(3) * * *

(i) Except for an EGU that uses PM CEMS or PM CPMS to demonstrate compliance with the PM emissions limit, or that has LEE status for filterable PM or total non-Hg HAP metals for non- liquid oil-fired EGUs (or HAP metals emissions for liquid oil-fired EGUs), or individual non- mercury metals CMS, you must: * * * * *

0 11. Amend Sec. 63.10021 by revising paragraph (c) introductory text and paragraph (f) to read as follows:

Sec. 63.10021 How do I demonstrate continuous compliance with the emission limitations, operating limits, and work practice standards?

* * * * *

(c) If you use PM CPMS data to measure compliance with an operating limit in table 4 to this subpart, you must record the PM CPMS output data for all periods when the process is operating and the PM CPMS is not out-of-control. You must demonstrate continuous compliance by using all quality-assured hourly average data collected by the PM CPMS for all operating hours to calculate the arithmetic average operating parameter in units of the operating limit (e.g., milliamps, PM concentration, raw data signal) on a 30 operating day rolling average basis, updated at the end of each new boiler operating day. Use the following equation to determine the 30-boiler operating day average.

Equation 9 to Paragraph (c) Introductory Text

[GRAPHIC] [TIFF OMITTED] TR24FE26.031

Where:

Hpvi is the hourly parameter value for hour i and n is the number of valid hourly parameter values collected over 30-boiler operating days. * * * * *

(f) You must submit the applicable reports and notifications required under Sec. 63.10031(a) through (k) to the Administrator electronically, using EPA's Emissions Collection and Monitoring Plan System (ECMPS) reporting tool. If the final date of any time period (or any deadline) for any of these submissions falls on a weekend or a Federal holiday, the time period shall be extended to the next business day. Moreover, if the EPA Host System supporting the ECMPS reporting tool is offline and unavailable for submission of reports for any part of a day when a report would otherwise be due, the deadline for reporting is automatically extended until the first business day on which the system becomes available following the outage. Use of the ECMPS reporting tool to submit a report or notification required under this subpart satisfies any requirement under subpart A of this part to submit that same report or notification (or the information contained in it) to the appropriate EPA Regional office or state agency whose delegation request has been approved. * * * * *

0 12. Amend Sec. 63.10022 by revising paragraphs (a)(2) and (3) to read as follows:

Sec. 63.10022 How do I demonstrate continuous compliance under the emissions averaging provision?

(a) * * *

(2) For each existing unit participating in the emissions averaging option that is equipped with PM CPMS, maintain the average parameter value at or below the operating limit established during the most recent performance test.

(3) For each existing unit participating in the emissions averaging option venting to a common stack configuration containing affected units from other subcategories, maintain the appropriate operating limit for each unit as specified in table 4 to this subpart that applies. * * * * *

Sec. 63.10023 [Amended]

0 13. Amend Sec. 63.10023 by removing the introductory text to the section.

0 14. Amend Sec. 63.10030 by revising paragraph (e)(3) to read as follows:

Sec. 63.10030 What notifications must I submit and when?

* * * * *

(e) * * *

(3) Identification of whether you plan to demonstrate compliance with each applicable emission limit through performance testing; fuel moisture analyses; performance testing with operating limits (e.g., use of PM CPMS); CEMS; or a sorbent trap monitoring system. * * * * *

0 15. Amend Sec. 63.10031 by revising paragraph (a)(4), paragraph (a)(5) introductory text, paragraphs (f)(2) and (4), paragraph (f)(6) introductory text, and paragraphs (g) through (k) to read as follows:

Sec. 63.10031 What reports must I submit and when?

(a) * * *

(4) If you elect to demonstrate continuous compliance using a PM CPMS, you must meet the electronic reporting requirements of appendix D to this subpart. Electronic reporting of the hourly PM CPMS output shall begin with the later of the first operating hour on or after January 1, 2024; or the first operating hour after completion of the initial performance stack test that establishes the operating limit for the PM CPMS.

(5) If you elect to monitor SO2 emission rate continuously as a surrogate for HCl, you must use the ECMPS reporting tool to submit the following information to EPA (except where it is already required to be reported or has been previously provided under the Acid Rain Program or another emissions reduction program that requires the use of part 75 of this chapter): * * * * *

(f) * * *

(2) If, for a particular EGU or a group of EGUs serving a common stack, you have elected to demonstrate compliance using a PM CEMS, an approved HAP metals CMS, or a PM CPMS, you must submit quarterly PDF reports in accordance with paragraph (f)(6) of this section, which include all of the 30-boiler operating day rolling average emission rates derived from the CEMS data or the 30-boiler operating day rolling average responses derived from the PM CPMS data (as applicable). The quarterly reports are due within 60 days after the reporting periods ending on March 31st, June 30th, September 30th, and December 31st. Submission of these quarterly reports in PDF files shall end with the report that covers the fourth calendar quarter of 2023. Beginning with the first calendar quarter of 2024, the compliance averages shall no longer be reported separately, but shall be incorporated into the quarterly compliance reports described in paragraph (g) of this section. In addition to the compliance averages for PM CEMS, PM CPMS, and/or HAP metals CMS, the quarterly compliance reports described in paragraph (g) of this section must also include the 30- (or, if applicable 90-) boiler operating day rolling average emission rates for Hg, HCl, HF, and/or SO2, if you have elected to (or are required to) continuously monitor these pollutants. Further, if your EGU or common stack is in an averaging plan, your quarterly compliance reports must identify all of the EGUs or common stacks in the plan

and must include all of the 30- (or 90-) group boiler operating day rolling weighted average emission rates (WAERs) for the averaging group. * * * * *

(4) You must submit semiannual compliance reports as required under paragraphs (b) through (d) of this section, ending with a report covering the semiannual period from July 1 through December 31, 2023, and Notifications of Compliance Status as required under Sec. 63.10030(e), as PDF files. Quarterly compliance reports shall be submitted in a format specified by the Administrator, thereafter, in accordance with paragraph (g) of this section, starting with a report covering the first calendar quarter of 2024. * * * * *

(6) All reports and notifications described in paragraphs (f) introductory text, (f)(1), (2), and (4) of this section shall be submitted to the EPA in the specified format and at the specified frequency, using the ECMPS reporting tool. Each PDF version of a stack test report, CEMS RATA report, PM CEMS correlation test report, RRA report, and RCA report must include sufficient information to assess compliance and to demonstrate that the reference method testing was done properly. Note that EPA will continue to accept, as necessary, PDF reports that are being phased out at the end of 2023, if the submission deadlines for those reports extend beyond December 31, 2023. The following data elements must be entered into the ECMPS reporting tool at the time of submission of each PDF file: * * * * *

(g) Starting with a report for the first calendar quarter of 2024, you must use the ECMPS reporting tool to submit quarterly electronic compliance reports. Each quarterly compliance report shall include the applicable data elements in sections 2 through 13 of appendix E to this subpart. For each stack test summarized in the compliance report, you must also submit the applicable reference method information in sections 17 through 31 of appendix E to this subpart. The compliance reports and associated appendix E information must be submitted no later than 60 days after the end of each calendar quarter.

(h) On and after January 1, 2024, initial Notifications of Compliance Status (if any) shall be submitted in accordance with 40 CFR 63.9(h)(2)(ii), as PDF files, using the ECMPS reporting tool. The applicable data elements in paragraphs (f)(6)(i) through (xii) of this section must be entered into the ECMPS reporting tool with each Notification.

(i) If you have elected to use paragraph (2) of the definition of “startup” in Sec. 63.10042 (only allowed before January 2, 2025), then, for startup and shutdown incidents that occur on or prior to December 31, 2023, you must include the information in Sec. 63.10031(c)(5) in the semiannual compliance report, in a PDF file. If you have elected to use paragraph (2) of the definition of “startup” in Sec. 63.10042, then, for startup and shutdown event(s) that occur on or after January 1, 2024, you must use the ECMPS reporting tool to submit the information in Sec. Sec. 63.10031(c)(5) and 63.10020(e) along with each quarterly compliance report, in a PDF file, starting with a report for the first calendar quarter of 2024. The applicable data elements in paragraphs (f)(6)(i) through (xii) of this section must be entered into the ECMPS reporting tool with each startup and shutdown report.

(j) If you elect to use a certified PM CEMS to monitor PM emissions continuously to demonstrate compliance with this subpart and have begun recording valid data from the PM CEMS prior to November 9, 2020, you must use the ECMPS reporting tool to submit a detailed report of your PS 11 correlation test (see appendix B to part 60 of this chapter) in a PDF file no later than 60 days after that date. For a correlation test completed on or after November 9, 2020, but prior to January 1, 2024, you must submit the PDF report no later than 60 days after the date on which the test is completed. For a correlation test completed on or after January 1, 2024, you must submit the PDF report according to section 7.2.4 of appendix C to this subpart. The applicable data elements in paragraphs (f)(6)(i) through (xii) of this section must be entered into the ECMPS reporting tool with the PDF report.

(k) If you elect to demonstrate compliance using a PM CPMS or an approved HAP metals CMS, you must submit quarterly reports of your QA/ QC activities (e.g., calibration checks, performance audits), in a PDF file, beginning with a report for the first quarter of 2024, if the PM CPMS or HAP metals CMS is used for the compliance demonstration in that quarter. Otherwise, submit a report for the first calendar quarter in which the PM CPMS or HAP metals CMS is used to demonstrate compliance. These reports are due no later than 60 days after the end of each calendar quarter. The applicable data elements in paragraphs (f)(6)(i) through (xii) of this section must be entered into the ECMPS reporting tool with the PDF report.

0 16. Amend Sec. 63.10032 by revising paragraph (a) introductory text to read as follows:

Sec. 63.10032 What records must I keep?

(a) You must keep records according to paragraphs (a)(1) and (2) of this section. If you are required to (or elect to) continuously monitor Hg and/or HCl and/or HF and/or PM emissions, or if you elect to use a PM CPMS, you must keep the records required under appendix A and/or appendix B and/or appendix C and/or appendix D to this subpart. If you elect to conduct periodic (e.g., quarterly or annual) performance stack tests, then, for each test completed on or after January 1, 2024, you must keep records of the applicable data elements under 40 CFR 63.7(g). You must also keep records of all data elements and other information in appendix E to this subpart that apply to your compliance strategy. * * * * *

0 17. Amend Sec. 63.10042 by adding the definition “Stationary combustion turbine” in alphabetical order to read as follows:

Sec. 63.10042 What definitions apply to this subpart?

* * * * *

Stationary combustion turbine means all equipment, including but not limited to the turbine, the fuel, air, lubrication and exhaust gas systems, control systems (except emissions control equipment), and any ancillary components and sub-components comprising any simple cycle stationary combustion turbine, any regenerative/recuperative cycle stationary combustion turbine, the combustion turbine portion of any stationary cogeneration cycle combustion system, or the combustion turbine portion of any stationary combined cycle steam/electric generating system. Stationary means that the combustion turbine is not self propelled or intended to be propelled while performing its function. Stationary combustion turbines do not include turbines located at a research or laboratory facility, if research is conducted on the turbine itself and the turbine is not being used to power other applications at the research or laboratory facility. * * * * *

0 18. Revise tables 1, 2, 4, 5, 6, 7, and 8 to subpart UUUUU of part 63 to read as follows:

Table 1 to Subpart UUUUU of Part 63--Emission Limits for New or Reconstructed EGUs

[As stated in Sec. 63.9991, you must comply with the following applicable emission limits]

Using these requirements,

You must meet the as appropriate (e.g.,

following emission specified sampling volume

If your EGU is in this subcategory For the following limits and work or test run duration) and

. . . pollutants . . . practice standards . . limitations with the test

. methods in table 5 to this

subpart . . .

1. Coal-fired unit not low rank a. Filterable 9.0E-2 lb/MWh \1\..... Collect a minimum catch of

virgin coal. particulate matter 6.0 milligrams or a

(PM). minimum sample volume of 4

dscm per run if using PM

CEMS for compliance. For

all other compliance

demonstration options,

collect a minimum of 1

dscm per run.

OR.................... OR

Total non-Hg HAP 6.0E-2 lb/GWh......... Collect a minimum of 4 dscm

metals. per run.

OR.................... OR

Individual HAP metals: Collect a minimum of 3 dscm

per run.

Antimony (Sb)...... 8.0E-3 lb/GWh.........

Arsenic (As)....... 3.0E-3 lb/GWh.........

Beryllium (Be)..... 6.0E-4 lb/GWh.........

Cadmium (Cd)....... 4.0E-4 lb/GWh.........

Chromium (Cr)...... 7.0E-3 lb/GWh.........

Cobalt (Co)........ 2.0E-3 lb/GWh.........

Lead (Pb).......... 2.0E-2 lb/GWh.........

Manganese (Mn)..... 4.0E-3 lb/GWh.........

Nickel (Ni)........ 4.0E-2 lb/GWh.........

Selenium (Se)...... 5.0E-2 lb/GWh.........

b. Hydrogen chloride 1.0E-2 lb/MWh......... For Method 26A at appendix

(HCl). A-8 to part 60 of this

chapter, collect a minimum

of 3 dscm per run. For

ASTM D6348-03 (Reapproved

2010) \2\ or Method 320 at

appendix A to part 63 of

this chapter, sample for a

minimum of 1 hour.

OR

Sulfur dioxide (SO2) 1.0 lb/MWh............ SO2 CEMS.

\3\.

c. Mercury (Hg)....... 3.0E-3 lb/GWh......... Hg CEMS or sorbent trap

monitoring system only. 2. Coal-fired units low rank virgin a. Filterable 9.0E-2 lb/MWh \1\..... Collect a minimum catch of

coal. particulate matter 6.0 milligrams or a

(PM). minimum sample volume of 4

dscm per run if using PM

CEMS for compliance. For

all other compliance

demonstration options,

collect a minimum of 1

dscm per run.

OR.................... OR

Total non-Hg HAP 6.0E-2 lb/GWh......... Collect a minimum of 4 dscm

metals. per run.

OR.................... OR

Individual HAP metals: Collect a minimum of 3 dscm

per run.

Antimony (Sb)...... 8.0E-3 lb/GWh.........

Arsenic (As)....... 3.0E-3 lb/GWh.........

Beryllium (Be)..... 6.0E-4 lb/GWh.........

Cadmium (Cd)....... 4.0E-4 lb/GWh.........

Chromium (Cr)...... 7.0E-3 lb/GWh.........

Cobalt (Co)........ 2.0E-3 lb/GWh.........

Lead (Pb).......... 2.0E-2 lb/GWh.........

Manganese (Mn)..... 4.0E-3 lb/GWh.........

Nickel (Ni)........ 4.0E-2 lb/GWh.........

Selenium (Se)...... 5.0E-2 lb/GWh.........

b. Hydrogen chloride 1.0E-2 lb/MWh......... For Method 26A, collect a

(HCl). minimum of 3 dscm per run

For ASTM D6348-03

(Reapproved 2010) \2\ or

Method 320, sample for a

minimum of 1 hour.

OR

Sulfur dioxide (SO2) 1.0 lb/MWh............ SO2 CEMS.

\3\.

c. Mercury (Hg)....... 4.0E-2 lb/GWh......... Hg CEMS or sorbent trap

monitoring system only. 3. IGCC unit....................... a. Filterable 7.0E-2 lb/MWh \4\ 9.0E- Collect a minimum catch of

particulate matter 2 lb/MWh \5\. 3.0 milligrams or a

(PM). minimum sample volume of 2

dscm per run.

OR.................... OR

Total non-Hg HAP 4.0E-1 lb/GWh......... Collect a minimum of 1 dscm

metals. per run.

OR.................... OR

Individual HAP metals: Collect a minimum of 2 dscm

per run.

Antimony (Sb)...... 2.0E-2 lb/GWh.........

Arsenic (As)....... 2.0E-2 lb/GWh.........

Beryllium (Be)..... 1.0E-3 lb/GWh.........

Cadmium (Cd)....... 2.0E-3 lb/GWh.........

Chromium (Cr)...... 4.0E-2 lb/GWh.........

Cobalt (Co)........ 4.0E-3 lb/GWh.........

Lead (Pb).......... 9.0E-3 lb/GWh.........

Manganese (Mn)..... 2.0E-2 lb/GWh.........

Nickel (Ni)........ 7.0E-2 lb/GWh.........

Selenium (Se)...... 3.0E-1 lb/GWh.........

b. Hydrogen chloride 2.0E-3 lb/MWh......... For Method 26A, collect a

(HCl). minimum of 1 dscm per run;

for Method 26 at appendix

A-8 to part 60 of this

chapter, collect a minimum

of 120 liters per run. For

ASTM D6348-03 (Reapproved

2010) \2\ or Method 320,

sample for a minimum of 1

hour.

OR

Sulfur dioxide (SO2) 4.0E-1 lb/MWh......... SO2 CEMS.

\3\.

c. Mercury (Hg)....... 3.0E-3 lb/GWh......... Hg CEMS or sorbent trap

monitoring system only. 4. Liquid oil-fired unit-- a. Filterable 3.0E-1 lb/MWh \1\..... Collect a minimum of 1 dscm

continental (excluding limited-use particulate matter per run.

liquid oil-fired subcategory (PM).

units).

OR OR

Total HAP metals...... 2.0E-4 lb/MWh......... Collect a minimum of 2 dscm

per run.

OR OR

Individual HAP metals: Collect a minimum of 2 dscm

per run.

Antimony (Sb)...... 1.0E-2 lb/GWh.........

Arsenic (As)....... 3.0E-3 lb/GWh.........

Beryllium (Be)..... 5.0E-4 lb/GWh.........

Cadmium (Cd)....... 2.0E-4 lb/GWh.........

Chromium (Cr)...... 2.0E-2 lb/GWh.........

Cobalt (Co)........ 3.0E-2 lb/GWh.........

Lead (Pb).......... 8.0E-3 lb/GWh.........

Manganese (Mn)..... 2.0E-2 lb/GWh.........

Nickel (Ni)........ 9.0E-2 lb/GWh.........

Selenium (Se)...... 2.0E-2 lb/GWh.........

Mercury (Hg)....... 1.0E-4 lb/GWh......... For Method 30B at appendix

A-8 to part 60 of this

chapter sample volume

determination (Section

8.2.4), the estimated Hg

concentration should

nominally be

14 [deg]C (320[deg]

25

[deg]F).

f. Convert emissions Method 19 F-factor

concentration to lb/ methodology at

MMBtu or lb/MWh appendix A-7 to part

emissions rates. 60 of this chapter, or

calculate using mass

emissions rate and

gross output data (see

Sec. 63.10007(e)).

OR..................... OR

PM CEMS................ a. Install, certify, Performance

operate, and maintain Specification 11 at

the PM CEMS. appendix B to part 60

of this chapter and

Procedure 2 at

appendix F to part 60

of this chapter.

b. Install, certify, Part 75 of this chapter

operate, and maintain and Sec.

the diluent gas, flow 63.10010(a), (b), (c),

rate, and/or moisture and (d).

monitoring systems.

c. Convert hourly Method 19 F-factor

emissions methodology at

concentrations to 30 appendix A-7 to part

boiler operating day 60 of this chapter, or

rolling average lb/ calculate using mass

MMBtu or lb/MWh emissions rate and

emissions rates. gross output data (see

Sec. 63.10007(e)). 2. Total or individual non-Hg HAP Emissions Testing...... a. Select sampling Method 1 at appendix A-

metals. ports location and the 1 to part 60 of this

number of traverse chapter.

points.

b. Determine velocity Method 2, 2A, 2C, 2F,

and volumetric flow- 2G or 2H at appendix A-

rate of the stack gas. 1 or A-2 to part 60 of

this chapter.

c. Determine oxygen and Method 3A or 3B at

carbon dioxide appendix A-2 to part

concentrations of the 60 of this chapter, or

stack gas. ANSI/ASME PTC 19.10-

1981.\3\

d. Measure the moisture Method 4 at appendix A-

content of the stack 3 to part 60 of this

gas. chapter.

e. Measure the HAP Method 29 at appendix A-

metals emissions 8 to part 60 of this

concentrations and chapter. For liquid

determine each oil-fired units, Hg is

individual HAP metals included in HAP metals

emissions and you may use Method

concentration, as well 29, Method 30B at

as the total appendix A-8 to part

filterable HAP metals 60 of this chapter;

emissions for Method 29, you

concentration and must report the front

total HAP metals half and back half

emissions results separately.

concentration. When using Method 29,

report metals matrix

spike and recovery

levels.

f. Convert emissions Method 19 F-factor

concentrations methodology at

(individual HAP appendix A-7 to part

metals, total 60 of this chapter, or

filterable HAP metals, calculate using mass

and total HAP metals) emissions rate and

to lb/MMBtu or lb/MWh gross output data (see

emissions rates. Sec. 63.10007(e)). 3. Hydrogen chloride (HCl) and Emissions Testing...... a. Select sampling Method 1 at appendix A-

hydrogen fluoride (HF). ports location and the 1 to part 60 of this

number of traverse chapter.

points.

b. Determine velocity Method 2, 2A, 2C, 2F,

and volumetric flow- 2G or 2H at appendix A-

rate of the stack gas. 1 or A-2 to part 60 of

this chapter.

c. Determine oxygen and Method 3A or 3B at

carbon dioxide appendix A-2 to part

concentrations of the 60 of this chapter, or

stack gas. ANSI/ASME PTC 19.10-

1981.\3\

d. Measure the moisture Method 4 at appendix A-

content of the stack 3 to part 60 of this

gas. chapter.

e. Measure the HCl and Method 26 or Method 26A

HF emissions at appendix A-8 to

concentrations. part 60 of this

chapter or Method 320

at appendix A to part

63 of this chapter or

ASTM D6348-03 \3\ with

(1) the following

conditions when using

ASTM D6348-03:

(A) The test plan

preparation and

implementation in the

Annexes to ASTM D6348-

03, Sections A1

through A8 are

mandatory;

(B) For ASTM D6348-03

Annex A5 (Analyte

Spiking Technique),

the percent (%) R must

be determined for each

target analyte (see

Equation A5.5);

(C) For the ASTM D6348-

03 test data to be

acceptable for a

target analyte, %R

must be 70% >= R 2 RATAs under part 75 of this chapter, you must submit along with the test results, the data elements in sections 17 and 18 of this appendix and, for each test run, the data elements in sections 19 through 30 of this appendix that are associated with the reference method(s) used. * * * * *

16.0 Applicable Reference Methods. One or more of the following EPA reference methods is needed for the tests described in sections 14.1 through 14.3 of this appendix: Method 1, 2, 3A, 4, 5, 5D, 5I, 6C, 26, 26A, 29, and/or 30B.

16.1 Application of EPA test Methods 1 and 2. If you use periodic stack testing to comply with an output-based emissions limit, you must determine the stack gas flow rate during each performance test run in which EPA test Method 5, 5D, 5I, 26, 26A, 29, or 30B is used, in order to convert the measured pollutant concentration to units of the standard. For EPA test Methods 5, 5D, 5I, 26A and 29, which require isokinetic sampling, the delta-P readings made with the pitot tube and manometer at the EPA test Method 1 traverse points, taken together with measurements of stack gas temperature, pressure, diluent gas concentration (from a separate EPA test Method 3A or 3B test) and moisture, provide the necessary data for the EPA test Method 2 flow rate calculations. Note that even

if you elect to comply with a heat input-based standard, when EPA test Method 5, 5D, 5I, 26A, or 29 is used, you must still use EPA test Method 2 to determine the average stack gas velocity (vs), which is needed for the percent isokinetic calculation. The EPA test Methods 26 and 30B do not require isokinetic sampling; therefore, when either of these methods is used, if the stack gas flow rate is needed to comply with the applicable output-based emissions limit, you must make a separate EPA test Method 2 determination during each test run.

16.2 Application of EPA test Method 3A. If you elect to perform periodic stack testing to comply with a heat input-based emissions limit, a separate measurement of the diluent gas (CO2 or O2) concentration is required for each test run in which EPA test Method 5, 5D, 5I, 26, 26A, 29, or 30B is used, in order to convert the measured pollutant concentration to units of the standard. The EPA test Method 3A is the preferred CO2 or O2 test method, although EPA test Method 3B may be used instead. Diluent gas measurements are also needed for stack gas molecular weight determinations when using EPA test Method 2.

16.3 Application of EPA test Method 4. For performance stack tests, depending on which equation is used to convert pollutant concentration to units of the standard, measurement of the stack gas moisture content, using EPA test Method 4, may also be required for each test run. The EPA test Method 4 moisture data are also needed for the EPA test Method 2 calculations (to determine the molecular weight of the gas) and for the RATA of an Hg CEMS that measures on a wet basis, when EPA test Method 30B is used. Other applications that require EPA test Method 4 moisture determinations include: RATAs of an SO2 monitor, when the reference method and CEMS data are measured on a different moisture basis (wet or dry); conversion of wet-basis pollutant concentrations to the units of a heat input-based emissions limit when certain EPA test Method 19 equations are used (e.g., Eq. 19- 3, 19-4, or 19-8); and stack gas molecular weight determinations. When EPA test Method 5, 5D, 5I, 26A, or 29 is used for the performance test, the EPA test Method 4 moisture determination may be made by using the water collected in the impingers together with data from the dry gas meter; alternatively, a separate EPA test Method 4 determination may be made. However, when EPA test Method 26 or 30B is used, EPA test Method 4 must be performed separately.

16.4 Applications of EPA test Methods 5, 5D, and 5I. The EPA test Method 5 (or, if applicable, 5D or 5I) must be used for the following applications: To demonstrate compliance with a filterable PM emissions limit; for PM tests used to set operating limits for PM CPMS; and for the initial correlations, RRAs and RCAs of a PM CEMS. * * * * *

17.0 Facility and Test Company Information. In accordance with Sec. 63.7(e)(3), a test is defined as three or more runs of one or more EPA Reference Method(s) conducted to measure the amount of a specific regulated pollutant, pollutants, or surrogates being emitted from a particular EGU (or group of EGUs that share a common stack), and to satisfy requirements of this subpart. On or after January 1, 2024, you must report the data elements in sections 17 and 18, each time that you complete a required performance stack test, RATA, PM CEMS correlation, RRA, or RCA at the affected EGU(s), using EPA test Method 5, 5B, 5D, 5I, 6C, 26, 26A, 29, or 30B. You must also report the applicable data elements in sections 19 through 25 of this appendix for each test. If any separate, corresponding EPA test Method 2, 3A, or 4 test is conducted in order to convert a pollutant concentration to the units of the applicable emission standard given in table 1 or table 2 of this subpart or to convert pollutant concentration from wet to dry basis (or vice-versa), you must also report the applicable data elements in sections 26 through 31 of this appendix.

The applicable data elements in sections 17 through 31 of this appendix must be submitted separately, in XML format, along with the quarterly Compliance Report (for stack tests) or along with the electronic test results submitted to the ECMPS reporting tool (for CMS performance evaluations). The Electronic Reporting Tool (ERT) or an equivalent schema can be utilized to create this XML file. Note: Ideally, for all of the tests completed at a given facility in a particular calendar quarter, the applicable data elements in sections 17 through 31 of this appendix should be submitted together in one XML file. However, as shown in table 8 to this subpart, the timelines for submitting stack test results and CMS performance evaluations are not identical. Therefore, for calendar quarters in which both types of tests are completed, it may not be possible to submit the applicable data elements for all of those tests in a single XML file; separate submittals may be necessary to meet the applicable reporting deadlines. * * * * *

19.0 Run-Level and Lab Data Elements for EPA test Methods 5, 5B, 5D, 5I, 26A, and 29. You must report the appropriate Source ID (i.e., Data Element 18.1) and the following data elements, as applicable, for each run of each performance stack test, PM CEMS correlation test, RATA, RRA, or RCA conducted using isokinetic EPA test Method 5, 5B, 5D, 5I, or 26A. If your EGU is oil-fired and you use EPA test Method 26A to conduct stack tests for both HCl and HF, you must report these data elements separately for each pollutant. When you use EPA test Method 29 to measure the individual HAP metals, total filterable HAP metals and total HAP metals, report only the run-level data elements (sections 19.1, 19.3 through 19.30, and 19.38 through 19.41 of this appendix), and the point-level and lab data elements in sections 20 and 21 of this appendix: * * * * *

20.0 Point-Level Data Elements for EPA test Methods 5, 5B, 5D, 5I, 26A, & 29. To link the point-level data with the run data in the xml schema, you must report the Source ID (i.e., Data Element 18.1), EPA Test Method (Data Element 19.3), Run Number (Data Element 19.4), and Run Begin Date (Data Element 19.8) with the following point-level data elements for each run of each performance stack test, PM CEMS correlation test, RATA, RRA, or RCA conducted using isokinetic EPA test Method 5, 5B, 5D, 5I, 26A, or 29. Note that these data elements are required for all EPA test Method 29 applications, whether the method is being used to measure the total or individual HAP metals concentrations: * * * * *

31.0 Other Information for Each Test or Test Series. You must provide each test included in the data file described in this appendix with supporting documentation, in a PDF file submitted concurrently with the file, such that all the data required to be reported by Sec. 63.7(g) are provided. That supporting data include but are not limited to diagrams showing the location of the test site and the sampling points, laboratory report(s) including analytical calibrations, calibrations of source sampling equipment, calibration gas cylinder certificates, raw instrumental data, field data sheets, quality assurance data (e.g., field recovery spikes) and any required audit results and stack testers' credentials (if applicable). The applicable data elements in Sec. 63.10031(f)(6)(i) through (xii) must be

entered into the ECMPS reporting tool with each PDF submittal; the test number(s) (see Sec. 63.10031(f)(6)(xi)) must be included. The test number(s) must match the test number(s) in sections 19 through 31 of this appendix (as applicable).

[FR Doc. 2026-03638 Filed 2-23-26; 8:45 am] BILLING CODE 6560-50-P