40 CFR Part 60, Table 1B
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Pollutant | Units(7 percent oxygen, dry basis) | Emissions limits | Averaging time 1 | Method for demonstrating compliance 2
HMIWI size
| Small | Medium | Large |
|---|---|---|
| Particulate matter | Milligrams per dry standard cubic meter (mg/dscm) (grains per dry standard cubic foot (gr/dscf)) | 66 (0.029) | 46 (0.020) | 25 (0.011) | 3-run average (1-hour minimum sample time per run) | EPA Reference Method 5 of appendix A-3 of part 60, or EPA Reference Method 26A or 29 of appendix A-8 of part 60. |
| Carbon monoxide | Parts per million by volume (ppmv) | 20 | 5.5 | 11 | 3-run average (1-hour minimum sample time per run) | EPA Reference Method 10 or 10B of appendix A-4 of part 60. |
| Dioxins/furans | Nanograms per dry standard cubic meter total dioxins/furans (ng/dscm) (grains per billion dry standard cubic feet (gr/109 dscf)) or ng/dscm TEQ (gr/109 dscf) | 16 (7.0) or 0.013 (0.0057) | 0.85 (0.37) or 0.020 (0.0087) | 9.3 (4.1) or 0.054 (0.024) | 3-run average (4-hour minimum sample time per run) | EPA Reference Method 23 of appendix A-7 of part 60. |
| Hydrogen chloride | ppmv | 44 | 7.7 | 6.6 | 3-run average (1-hour minimum sample time per run) | EPA Reference Method 26 or 26A of appendix A-8 of part 60. |
| Sulfur dioxide | ppmv | 4.2 | 4.2 | 9 | 3-run average (1-hour minimum sample time per run) | EPA Reference Method 6 or 6C of appendix A-4 of part 60. |
| Nitrogen oxides | ppmv | 190 | 190 | 140 | 3-run average (1-hour minimum sample time per run) | EPA Reference Method 7 or 7E of appendix A-4 of part 60. |
| Lead | mg/dscm (grains per thousand dry standard cubic feet (gr/103 dscf)) | 0.31 (0.14) | 0.018 (0.0079) | 0.036 (0.016) | 3-run average (1-hour minimum sample time per run) | EPA Reference Method 29 of appendix A-8 of part 60. |
| Cadmium | mg/dscm (gr/103 dscf) | 0.017 (0.0074) | 0.013 (0.0057) | 0.0092 (0.0040) | 3-run average (1-hour minimum sample time per run) | EPA Reference Method 29 of appendix A-8 of part 60. |
| Mercury | mg/dscm (gr/103 dscf) | 0.014 (0.0061) | 0.025 (0.011) | 0.018 (0.0079) | 3-run average (1-hour minimum sample time per run) | EPA Reference Method 29 of appendix A-8 of part 60. |
1 Except as allowed under § 60.56c(c) for HMIWI equipped with CEMS.
2 Does not include CEMS and approved alternative non-EPA test methods allowed under § 60.56c(b).
[74 FR 51406, Oct. 6, 2009]