40 CFR Part 62, Table 1
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
For the air pollutant | You must meet this emissions limit | With these units(7 percent oxygen, dry basis) | Using thisaveraging time a | And determining compliance using this method b
HMIWI size
| Small rural | Small | Medium | Large |
|---|---|---|---|
| Particulate matter | 87 (0.038) | 66 (0.029) | 46 (0.020) c34 (0.015) d | 25 (0.011) | Milligrams per dry standard cubic meter (grains per dry standard cubic foot) | 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 M 26A or 29 of appendix A-8 of part 60 |
| Carbon monoxide | 20 | 20 | 5.5 | 11 | Parts per million by volume | 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 | 240 (100) or 5.1 (2.2) | 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) | Nanograms per dry standard cubic meter total dioxins/furans (grains per billion dry standard cubic feet) or nanograms per dry standard cubic meter TEQ (grains per billion dry standard cubic feet) | 3-run average (4-hour minimum sample time per run) | EPA Reference Method 23 of appendix A-7 of part 60 |
| Hydrogen chloride | 810 | 44 c15 d | 7.7 | 6.6 | Parts per million by volume | 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 | 55 | 4.2 | 4.2 | 9 | Parts per million by volume | 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 | 130 | 190 | 190 | 140 | Parts per million by volume | 3-run average (1-hour minimum sample time per run) | EPA Reference Method 7 or 7E of appendix A-4 of part 60 |
| Lead | 0.50 (0.22) | 0.31 (0.14) | 0.018 (0.0079) | 0.036 (0.016) | Milligrams per dry standard cubic meter (grains per thousand dry standard cubic feet) | 3-run average (1-hour minimum sample time per run) | EPA Reference Method 29 of appendix A-8 of part 60 |
| Cadmium | 0.11 (0.048) | 0.017 (0.0074) | 0.013 (0.0057) | 0.0092 (0.0040) | Milligrams per dry standard cubic meter (grains per thousand dry standard cubic feet) | 3-run average (1-hour minimum sample time per run) | EPA Reference Method 29 of appendix A-8 of part 60 |
| Mercury | 0.051 (0.0022) | 0.014 (0.0061) | 0.025 (0.011) | 0.018 (0.0079) | Milligrams per dry standard cubic meter (grains per thousand dry standard cubic feet) | 3-run average (1-hour minimum sample time per run) | EPA Reference Method 29 of appendix A-8 of part 60 |
a Except as allowed under §§ 62.14452(o)-(q) for HMIWI equipped with CEMS or continuous automated sampling systems.
b Does not include CEMS, continuous automated sampling systems, and approved alternative non-EPA test methods allowed under § 62.14452(d) and (m).
c Limits for those HMIWI for which construction or modification was commenced according to § 62.14400(a)(2)(i).
d Limits for those HMIWI for which construction or modification was commenced according to § 62.14400(a)(2)(ii).
[78 FR 28075, May 13, 2013]