---
kind: "section"
citation: "42 U.S.C. § 7477"
title: "42"
title_heading: "The Public Health and Welfare"
number: "7477"
heading: "Enforcement"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/42/7477"
units:
  - "Chapter 85 — Air Pollution Prevention and Control"
  - "Subchapter I — Programs and Activities"
  - "Part C — Prevention of Significant Deterioration of Air Quality"
  - "Subpart i — clean air"
---

# §7477. Enforcement


The [Administrator](/usc/42/7602.md?p=a) shall, and a [State](/usc/42/7602.md?p=d) may, take such measures, including issuance of an order, or seeking injunctive relief, as necessary to prevent the [construction](/usc/42/7479.md?p=2-C) or [modification](/usc/42/7501.md?p=4) of a [major emitting facility](/usc/42/7479.md?p=1) which does not conform to the requirements of this part, or which is proposed to be constructed in any area designated pursuant to [section 7407(d) of this title](/usc/42/7407.md?p=d) as attainment or unclassifiable and which is not subject to an implementation plan which meets the requirements of this part.


## Source credit

(July 14, 1955, ch. 360, title I, § 167, as added Pub. L. 95–95, title I, § 127(a), Aug. 7, 1977, 91 Stat. 740; amended Pub. L. 101–549, title I, § 110(3), title VII, § 708, Nov. 15, 1990, 104 Stat. 2470, 2684.)

## Notes

### Editorial Notes

### Amendments

1990—Pub. L. 101–549, § 708, substituted “construction or modification of a major emitting facility” for “construction of a major emitting facility”.

Pub. L. 101–549, § 110(3), substituted “designated pursuant to section 7407(d) as attainment or unclassifiable” for “included in the list promulgated pursuant to paragraph (1)(D) or (E) of subsection (d) of section 7407 of this title”.