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42 U.S.C. 7401 et seq.
57 FR 61992, Dec. 29, 1992, unless otherwise noted.
77 FR 9464, Feb. 16, 2012, unless otherwise noted.
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As stated in § 63.9991, you must comply with the following applicable emission limits:1
| If your EGU is in this subcategory . . . | For the following
pollutants . . . |
You must meet the following emission limits and work practice
standards . . . |
Using these requirements, as appropriate (e.g., specified sampling volume or test run duration) and limitations with the test methods in table 5 to this
subpart . . . |
|---|---|---|---|
| 1. Coal-fired unit not low rank virgin coal | a. Filterable particulate matter (PM) | 3.0E-2 lb/MMBtu or 3.0E-1 lb/MWh 2 | Before July 6, 2027: Collect a minimum of 1 dscm per run. On or after July 6, 2027: Collect a minimum catch of 6.0 milligrams or a 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 metals | 5.0E-5 lb/MMBtu or 5.0E-1 lb/GWh | Collect a minimum of 1 dscm per run. | |
| OR | OR | ||
| Individual HAP metals: | Collect a minimum of 3 dscm per run. | ||
| Antimony (Sb) | 8.0E-1 lb/TBtu or 8.0E-3 lb/GWh | ||
| Arsenic (As) | 1.1E0 lb/TBtu or 2.0E-2 lb/GWh | ||
| Beryllium (Be) | 2.0E-1 lb/TBtu or 2.0E-3 lb/GWh | ||
| Cadmium (Cd) | 3.0E-1 lb/TBtu or 3.0E-3 lb/GWh | ||
| Chromium (Cr) | 2.8E0 lb/TBtu or 3.0E-2 lb/GWh | ||
| Cobalt (Co) | 8.0E-1 lb/TBtu or 8.0E-3 lb/GWh | ||
| Lead (Pb) | 1.2E0 lb/TBtu or 2.0E-2 lb/GWh | ||
| Manganese (Mn) | 4.0E0 lb/TBtu or 5.0E-2 lb/GWh | ||
| Nickel (Ni) | 3.5E0 lb/TBtu or 4.0E-2 lb/GWh | ||
| Selenium (Se) | 5.0E0 lb/TBtu or 6.0E-2 lb/GWh | ||
| b. Hydrogen chloride (HCl) | 2.0E-3 lb/MMBtu or 2.0E-2 lb/MWh | For Method 26A at appendix A-8 to part 60 of this chapter, collect a minimum of 0.75 dscm per run; for Method 26, collect a minimum of 120 liters per run. For ASTM D6348-03 (Reapproved 2010) 3 or Method 320 at appendix A to part 63 of this chapter, sample for a minimum of 1 hour. | |
| OR | |||
| Sulfur dioxide (SO2) 4 | 2.0E-1 lb/MMBtu or 1.5E0 lb/MWh | SO2 CEMS. | |
| c. Mercury (Hg) | 1.2E0 lb/TBtu or 1.3E-2 lb/GWh | LEE Testing for 30 days with a sampling period consistent with that given in section 5.2.1 of appendix A to this subpart per Method 30B at appendix A-8 to part 60 of this chapter run or Hg CEMS or sorbent trap monitoring system only. | |
| OR | |||
| 1.0E0 lb/TBtu or 1.1E-2 lb/GWh | LEE Testing for 90 days with a sampling period consistent with that given in section 5.2.1 of appendix A to this subpart per Method 30B run or Hg CEMS or sorbent trap monitoring system only. | ||
| 2. Coal-fired unit low rank virgin coal | a. Filterable particulate matter (PM) | 3.0E-2 lb/MMBtu or 3.0E-1 lb/MWh 2 | Before July 6, 2027: Collect a minimum of 1 dscm per run. On or after July 6, 2027: Collect a minimum catch of 6.0 milligrams or a minimum sample volume of 4 dscm per run if using PM CEMS for compliance demonstration. For all other compliance demonstration options, collect a minimum of 1 dscm per run. |
| OR | OR | ||
| Total non-Hg HAP metals | 5.0E-5 lb/MMBtu or 5.0E-1 lb/GWh | Collect a minimum of 1 dscm per run. | |
| OR | OR | ||
| Individual HAP metals: | Collect a minimum of 3 dscm per run. | ||
| Antimony (Sb) | 8.0E-1 lb/TBtu or 8.0E-3 lb/GWh | ||
| Arsenic (As) | 1.1E0 lb/TBtu or 2.0E-2 lb/GWh | ||
| Beryllium (Be) | 2.0E-1 lb/TBtu or 2.0E-3 lb/GWh | ||
| Cadmium (Cd) | 3.0E-1 lb/TBtu or 3.0E-3 lb/GWh | ||
| Chromium (Cr) | 2.8E0 lb/TBtu or 3.0E-2 lb/GWh | ||
| Cobalt (Co) | 8.0E-1 lb/TBtu or 8.0E-3 lb/GWh | ||
| Lead (Pb) | 1.2E0 lb/TBtu or 2.0E-2 lb/GWh | ||
| Manganese (Mn) | 4.0E0 lb/TBtu or 5.0E-2 lb/GWh | ||
| Nickel (Ni) | 3.5E0 lb/TBtu or 4.0E-2 lb/GWh | ||
| Selenium (Se) | 5.0E0 lb/TBtu or 6.0E-2 lb/GWh | ||
| b. Hydrogen chloride (HCl) | 2.0E-3 lb/MMBtu or 2.0E-2 lb/MWh | For Method 26A, collect a minimum of 0.75 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) 3 or Method 320, sample for a minimum of 1 hour. | |
| OR | |||
| Sulfur dioxide (SO2) 4 | 2.0E-1 lb/MMBtu or 1.5E0 lb/MWh | SO2 CEMS. | |
| c. Mercury (Hg) | 4.0E0 lb/TBtu or 4.0E-2 lb/GWh | LEE Testing for 30 days with a sampling period consistent with that given in section 5.2.1 of appendix A to this subpart per Method 30B run or Hg CEMS or sorbent trap monitoring system only. | |
| 3. IGCC unit | a. Filterable particulate matter (PM) | 4.0E-2 lb/MMBtu or 4.0E-1 lb/MWh 2 | Before July 6, 2027: Collect a minimum of 1 dscm per run. On or after July 6, 2027: Collect a minimum catch of 3.0 milligrams or a minimum sample volume of 2 dscm per run. |
| OR | OR | ||
| Total non-Hg HAP metals | 6.0E-5 lb/MMBtu or 5.0E-1 lb/GWh | Collect a minimum of 1 dscm per run. | |
| OR | OR | ||
| Individual HAP metals: | Collect a minimum of 2 dscm per run. | ||
| Antimony (Sb) | 1.4E0 lb/TBtu or 2.0E-2 lb/GWh | ||
| Arsenic (As) | 1.5E0 lb/TBtu or 2.0E-2 lb/GWh | ||
| Beryllium (Be) | 1.0E-1 lb/TBtu or 1.0E-3 lb/GWh | ||
| Cadmium (Cd) | 1.5E-1 lb/TBtu or 2.0E-3 lb/GWh | ||
| Chromium (Cr) | 2.9E0 lb/TBtu or 3.0E-2 lb/GWh | ||
| Cobalt (Co) | 1.2E0 lb/TBtu or 2.0E-2 lb/GWh | ||
| Lead (Pb) | 1.9E+2 lb/TBtu or 1.8E0 lb/GWh | ||
| Manganese (Mn) | 2.5E0 lb/TBtu or 3.0E-2 lb/GWh | ||
| Nickel (Ni) | 6.5E0 lb/TBtu or 7.0E-2 lb/GWh | ||
| Selenium (Se) | 2.2E+1 lb/TBtu or 3.0E-1 lb/GWh | ||
| b. Hydrogen chloride (HCl) | 5.0E-4 lb/MMBtu or 5.0E-3 lb/MWh | For Method 26A, collect a minimum of 1 dscm per run; for Method 26, collect a minimum of 120 liters per run. For ASTM D6348-03 (Reapproved 2010) 3 or Method 320, sample for a minimum of 1 hour. | |
| c. Mercury (Hg) | 2.5E0 lb/TBtu or 3.0E-2 lb/GWh | LEE Testing for 30 days with a sampling period consistent with that given in section 5.2.1 of appendix A to this subpart per Method 30B run or Hg CEMS or sorbent trap monitoring system only. | |
| 4. Liquid oil-fired unit—continental (excluding limited-use liquid oil-fired subcategory units) | a. Filterable particulate matter (PM) | 3.0E-2 lb/MMBtu or 3.0E-1 lb/MWh 2 | Collect a minimum of 1 dscm per run. |
| OR | OR | ||
| Total HAP metals | 8.0E-4 lb/MMBtu or 8.0E-3 lb/MWh | Collect a minimum of 1 dscm per run. | |
| OR | OR | ||
| Individual HAP metals: | Collect a minimum of 1 dscm per run. | ||
| Antimony (Sb) | 1.3E+1 lb/TBtu or 2.0E-1 lb/GWh | ||
| Arsenic (As) | 2.8E0 lb/TBtu or 3.0E-2 lb/GWh | ||
| Beryllium (Be) | 2.0E-1 lb/TBtu or 2.0E-3 lb/GWh | ||
| Cadmium (Cd) | 3.0E-1 lb/TBtu or 2.0E-3 lb/GWh | ||
| Chromium (Cr) | 5.5E0 lb/TBtu or 6.0E-2 lb/GWh | ||
| Cobalt (Co) | 2.1E+1 lb/TBtu or 3.0E-1 lb/GWh | ||
| Lead (Pb) | 8.1E0 lb/TBtu or 8.0E-2 lb/GWh | ||
| Manganese (Mn) | 2.2E+1 lb/TBtu or 3.0E-1 lb/GWh | ||
| Nickel (Ni) | 1.1E+2 lb/TBtu or 1.1E0 lb/GWh | ||
| Selenium (Se) | 3.3E0 lb/TBtu or 4.0E-2 lb/GWh | ||
| Mercury (Hg) | 2.0E-1 lb/TBtu or 2.0E-3 lb/GWh | For Method 30B sample volume determination (Section 8.2.4), the estimated Hg concentration should nominally be <1⁄2 the standard. | |
| b. Hydrogen chloride (HCl) | 2.0E-3 lb/MMBtu or 1.0E-2 lb/MWh | For Method 26A, collect a minimum of 1 dscm per run; for Method 26, collect a minimum of 120 liters per run. For ASTM D6348-03 (Reapproved 2010) 3 or Method 320, sample for a minimum of 1 hour. | |
| c. Hydrogen fluoride (HF) | 4.0E-4 lb/MMBtu or 4.0E-3 lb/MWh | For Method 26A, collect a minimum of 1 dscm per run; for Method 26, collect a minimum of 120 liters per run. For ASTM D6348-03 (Reapproved 2010) 3 or Method 320, sample for a minimum of 1 hour. | |
| 5. Liquid oil-fired unit—non-continental (excluding limited-use liquid oil-fired subcategory units) | a. Filterable particulate matter (PM) | 3.0E-2 lb/MMBtu or 3.0E-1 lb/MWh 2 | Collect a minimum of 1 dscm per run. |
| OR | OR | ||
| Total HAP metals | 6.0E-4 lb/MMBtu or 7.0E-3 lb/MWh | Collect a minimum of 1 dscm per run. | |
| OR | OR | ||
| Individual HAP metals: | Collect a minimum of 2 dscm per run. | ||
| Antimony (Sb) | 2.2E0 lb/TBtu or 2.0E-2 lb/GWh | ||
| Arsenic (As) | 4.3E0 lb/TBtu or 8.0E-2 lb/GWh | ||
| Beryllium (Be) | 6.0E-1 lb/TBtu or 3.0E-3 lb/GWh | ||
| Cadmium (Cd) | 3.0E-1 lb/TBtu or 3.0E-3 lb/GWh | ||
| Chromium (Cr) | 3.1E+1 lb/TBtu or 3.0E-1 lb/GWh | ||
| Cobalt (Co) | 1.1E+2 lb/TBtu or 1.4E0 lb/GWh | ||
| Lead (Pb) | 4.9E0 lb/TBtu or 8.0E-2 lb/GWh | ||
| Manganese (Mn) | 2.0E+1 lb/TBtu or 3.0E-1 lb/GWh | ||
| Nickel (Ni) | 4.7E+2 lb/TBtu or 4.1E0 lb/GWh | ||
| Selenium (Se) | 9.8E0 lb/TBtu or 2.0E-1 lb/GWh | ||
| Mercury (Hg) | 4.0E-2 lb/TBtu or 4.0E-4 lb/GWh | For Method 30B sample volume determination (Section 8.2.4), the estimated Hg concentration should nominally be <1⁄2 the standard. | |
| b. Hydrogen chloride (HCl) | 2.0E-4 lb/MMBtu or 2.0E-3 lb/MWh | For Method 26A, collect a minimum of 1 dscm per run; for Method 26, collect a minimum of 120 liters per run. For ASTM D6348-03 (Reapproved 2010) 3 or Method 320, sample for a minimum of 2 hours. | |
| c. Hydrogen fluoride (HF) | 6.0E-5 lb/MMBtu or 5.0E-4 lb/MWh | For Method 26A, collect a minimum of 3 dscm per run. For ASTM D6348-03 (Reapproved 2010) 3 or Method 320, sample for a minimum of 2 hours. | |
| 6. Solid oil-derived fuel-fired unit | a. Filterable particulate matter (PM) | 8.0E-3 lb/MMBtu or 9.0E-2 lb/MWh 2 | Before July 6, 2027: Collect a minimum of 1 dscm per run. On or after July 6, 2027: Collect a minimum catch of 6.0 milligrams or a 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 metals | 4.0E-5 lb/MMBtu or 6.0E-1 lb/GWh | Collect a minimum of 1 dscm per run. | |
| OR | OR | ||
| Individual HAP metals: | Collect a minimum of 3 dscm per run. | ||
| Antimony (Sb) | 8.0E-1 lb/TBtu or 7.0E-3 lb/GWh | ||
| Arsenic (As) | 3.0E-1 lb/TBtu or 5.0E-3 lb/GWh | ||
| Beryllium (Be) | 6.0E-2 lb/TBtu or 5.0E-4 lb/GWh | ||
| Cadmium (Cd) | 3.0E-1 lb/TBtu or 4.0E-3 lb/GWh | ||
| Chromium (Cr) | 8.0E-1 lb/TBtu or 2.0E-2 lb/GWh | ||
| Cobalt (Co) | 1.1E0 lb/TBtu or 2.0E-2 lb/GWh | ||
| Lead (Pb) | 8.0E-1 lb/TBtu or 2.0E-2 lb/GWh | ||
| Manganese (Mn) | 2.3E0 lb/TBtu or 4.0E-2 lb/GWh | ||
| Nickel (Ni) | 9.0E0 lb/TBtu or 2.0E-1 lb/GWh | ||
| Selenium (Se) | 1.2E0 lb/Tbtu or 2.0E-2 lb/GWh | ||
| b. Hydrogen chloride (HCl) | 5.0E-3 lb/MMBtu or 8.0E-2 lb/MWh | For Method 26A, collect a minimum of 0.75 dscm per run; for Method 26, collect a minimum of 120 liters per run. For ASTM D6348-03 (Reapproved 2010) 3 or Method 320, sample for a minimum of 1 hour. | |
| OR | |||
| Sulfur dioxide (SO2) 4 | 3.0E-1 lb/MMBtu or 2.0E0 lb/MWh | SO2 CEMS. | |
| c. Mercury (Hg) | 2.0E-1 lb/TBtu or 2.0E-3 lb/GWh | LEE Testing for 30 days with a sampling period consistent with that given in section 5.2.1 of appendix A to this subpart per Method 30B run or Hg CEMS or sorbent trap monitoring system only. | |
| 7. Eastern Bituminous Coal Refuse (EBCR)-fired unit | a. Filterable particulate matter (PM) | 3.0E-2 lb/MMBtu or 3.0E-1 lb/MWh 2 | Before July 6, 2027: Collect a minimum of 1 dscm per run. On or after July 6, 2027: Collect a minimum catch of 6.0 milligrams or a 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 metals | 5.0E-5 lb/MMBtu or 5.0E-1 lb/GWh | Collect a minimum of 1 dscm per run. | |
| OR | OR | ||
| Individual HAP metals: | Collect a minimum of 3 dscm per run. | ||
| Antimony (Sb) | 8.0E-1 lb/TBtu or 8.0E-3 lb/GWh | ||
| Arsenic (As) | 1.1E0 lb/TBtu or 2.0E-2 lb/GWh | ||
| Beryllium (Be) | 2.0E-1 lb/TBtu or 2.0E-3 lb/GWh | ||
| Cadmium (Cd) | 3.0E-1 lb/TBtu or 3.0E-3 lb/GWh | ||
| Chromium (Cr) | 2.8E0 lb/TBtu or 3.0E-2 lb/GWh | ||
| Cobalt (Co) | 8.0E-1 lb/TBtu or 8.0E-3 lb/GWh | ||
| Lead (Pb) | 1.2E0 lb/TBtu or 2.0E-2 lb/GWh | ||
| Manganese (Mn) | 4.0E0 lb/TBtu or 5.0E-2 lb/GWh | ||
| Nickel (Ni) | 3.5E0 lb/TBtu or 4.0E-2 lb/GWh | ||
| Selenium (Se) | 5.0E0 lb/TBtu or 6.0E-2 lb/GWh | ||
| b. Hydrogen chloride (HCl) | 4.0E-2 lb/MMBtu or 4.0E-1 lb/MWh | For Method 26A at appendix A-8 to part 60 of this chapter, collect a minimum of 0.75 dscm per run; for Method 26, collect a minimum of 120 liters per run. For ASTM D6348-03 (Reapproved 2010) 3 or Method 320 at appendix A to part 63 of this chapter, sample for a minimum of 1 hour. | |
| OR | |||
| Sulfur dioxide (SO2) 4 | 6E-1 lb/MMBtu or 9E0 lb/MWh | SO2 CEMS. | |
| c. Mercury (Hg) | 1.2E0 lb/TBtu or 1.3E-2 lb/GWh | LEE Testing for 30 days with a sampling period consistent with that given in section 5.2.1 of appendix A to this subpart per Method 30B at appendix A-8 to part 60 of this chapter run or Hg CEMS or sorbent trap monitoring system only. | |
| OR | |||
| 1.0E0 lb/TBtu or 1.1E-2 lb/GWh | LEE Testing for 90 days with a sampling period consistent with that given in section 5.2.1 of appendix A to this subpart per Method 30B run or Hg CEMS or sorbent trap monitoring system only. | ||
| 1 For LEE emissions testing for total PM, total HAP metals, individual HAP metals, HCl, and HF, the required minimum sampling volume must be increased nominally by a factor of 2. | |||
| 2 Gross output. | |||
| 3 Incorporated by reference, see § 63.14. | |||
| 4 You may not use the alternate SO2 limit if your EGU does not have some form of FGD system and SO2 CEMS installed. | |||
[85 FR 20850, Apr. 15, 2020, as amended at 89 FR 38571, May 7, 2024; 91 FR 9117, Feb. 24, 2026]