42 U.S.C. § 7475
Preconstruction requirements
The demonstration pertaining to maximum allowable increases required under subsection (a)(3) shall not apply to maximum allowable increases for class II areas in the case of an expansion or modification of a major emitting facility which is in existence on
Any completed permit application under section 7410 of this title for a major emitting facility in any area to which this part applies shall be granted or denied not later than one year after the date of filing of such completed application.
| Maximum allowable increase (in micrograms per cubic meter) |
|---|---|
Particulate matter: | |
Annual geometric mean | 19 |
Twenty-four-hour maximum | 37 |
Sulfur dioxide: | |
Annual arithmetic mean | 20 |
Twenty-four-hour maximum | 91 |
Three-hour maximum | 325 |
MAXIMUM ALLOWABLE INCREASE | ||
|---|---|---|
(In micrograms per cubic meter) | ||
Period of exposure | Low terrain areas | High terrain areas |
24-hr maximum | 36 | 62 |
3-hr maximum | 130 | 221 |
1977—Subsec. (a)(1). Pub. L. 95–190, § 14(a)(44), substituted “part;” for “part:”.
Subsec. (a)(3). Pub. L. 95–190, § 14(a)(45), inserted provision making applicable requirement of section 7410(j) of this title.
Subsec. (b). Pub. L. 95–190, § 14(a)(46), inserted “cause or” before “contribute” and struck out “actual” before “allowable emissions”.
Subsec. (d)(2)(C). Pub. L. 95–190, § 14(a)(47)–(49), in cl. (ii) substituted “contribute” for “contrbute”, in cl. (iii) substituted “quality-related” for “quality related” and “concentrations which” for “concentrations, which”, and in cl. (iv) substituted “such facility” for “such sources” and “will not cause or contribute to concentrations of such pollutant which exceed” for “together with all other sources, will not exceed”.
Subsec. (d)(2)(D). Pub. L. 95–190, § 14(a)(50), (51), in cl. (iii) substituted provisions relating to determinations of amounts of emissions of sulfur oxides from facilities, for provisions relating to determinations of amounts of emissions of sulfur oxides from sources operating under permits issued pursuant to this subpar., together with all other sources, and added cl. (iv).