Table 1 to § 49.153 -Minor NSR Thresholdsa
Regulated NSR pollutant | Minor NSR thresholds for nonattainment areas (tpy) | Minor NSR thresholds for attainment areas (tpy) |
Carbon monoxide (CO) | 5 | 10 |
Nitrogen oxides (NOX) | 5b | 10 |
Sulfur dioxide (SO2) | 5 | 10 |
Volatile Organic Compounds (VOC) | 2b | 5 |
PM | 5 | 10 |
PM10 | 1 | 5 |
PM2.5 | 0.6 | 3 |
Lead | 0.1 | 0.1 |
Fluorides | NA | 1 |
Sulfuric acid mist | NA | 2 |
Hydrogen sulfide (H2S) | NA | 2 |
Total reduced sulfur (including H2S) | NA | 2 |
Reduced sulfur compounds (including H2S) | NA | 2 |
Municipal waste combustor emissions | NA | 2 |
Municipal solid waste landfill emissions (measured as nonmethane organic compounds) | NA | 10 |
a If part of a Tribe's area of Indian country is designated as attainment and another part as nonattainment, the applicable threshold for a proposed source or modification is determined based on the designation where the source would be located. If the source straddles the two areas, the more stringent thresholds apply.
b In extreme ozone nonattainment areas, section 182(e)(2) of the Act requires any change at a major source that results in any increase in emissions to be subject to major NSR permitting. In other words, any changes to existing major sources in extreme ozone nonattainment areas are subject to a "0" tpy threshold, but that threshold does not apply to minor sources.
40 C.F.R. §49.153