---
kind: "section"
citation: "42 U.S.C. § 7574"
title: "42"
title_heading: "The Public Health and Welfare"
number: "7574"
heading: "Definitions"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/42/7574"
units:
  - "Chapter 85 — Air Pollution Prevention and Control"
  - "Subchapter II — Emission Standards for Moving Sources"
  - "Part B — Aircraft Emission Standards"
---

# §7574. Definitions


Terms used in this part (other than [Administrator](/usc/42/7602.md?p=a)) shall have the same meaning as such terms have under [section 40102(a) of title 49](/usc/49/40102.md?p=a).


## Source credit

(July 14, 1955, ch. 360, title II, § 234, as added Pub. L. 91–604, § 11(a)(1), Dec. 31, 1970, 84 Stat. 1705.)

## Notes

### Editorial Notes

### Codification

In text, “section 40102(a) of title 49” substituted for “section 101 of the Federal Aviation Act of 1958” on authority of Pub. L. 103–272, § 6(b), July 5, 1994, 108 Stat. 1378, the first section of which enacted subtitles II, III, and V to X of Title 49, Transportation.

Section was formerly classified to section 1857f–12 of this title.