StacksVerified U.S. regulatory reference

40 CFR Part 60, Table 2B

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov
PollutantUnits(7 percent oxygen, dry basis)HMIWI Emissions limitsAveraging time 1Method for demonstrating compliance 2
Particulate mattermg/dscm (gr/dscf)87 (0.038)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 monoxideppmv203-run average (1-hour minimum sample time per run)EPA Reference Method 10 or 10B of appendix A-4 of part 60.
Dioxins/furansng/dscm total dioxins/furans (gr/109 dscf) or ng/dscm TEQ (gr/109 dscf)240 (100) or 5.1 (2.2)3-run average (4-hour minimum sample time per run)EPA Reference Method 23 of appendix A-7 of part 60.
Hydrogen chlorideppmv8103-run average (1-hour minimum sample time per run)EPA Reference Method 26 or 26A of appendix A-8 of part 60.
Sulfur dioxideppmv553-run average (1-hour minimum sample time per run)EPA Reference Method 6 or 6C of appendix A-4 of part 60.
Nitrogen oxidesppmv1303-run average (1-hour minimum sample time per run)EPA Reference Method 7 or 7E of appendix A-4 of part 60.
Leadmg/dscm (gr/103 dscf)0.50 (0.22)3-run average (1-hour minimum sample time per run)EPA Reference Method 29 of appendix A-8 of part 60.
Cadmiummg/dscm (gr/103 dscf)0.11 (0.048)3-run average (1-hour minimum sample time per run)EPA Reference Method 29 of appendix A-8 of part 60.
Mercurymg/dscm (gr/103 dscf)0.0051 (0.0022)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 51407, Oct. 6, 2009]