40 CFR § 52.2124 - Legal authority.

---
identifier: "/us/cfr/t40/s52.2124"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 52.2124 - Legal authority."
title_number: 40
title_name: "Protection of Environment"
section_number: "52.2124"
section_name: "Legal authority."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "C"
subchapter_name: "AIR PROGRAMS"
part_number: "52"
part_name: "APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANS"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "42 U.S.C. 7401"
cfr_part: "52"
---


# 52.2124 Legal authority.

(a)-(c) [Reserved]

(d) The requirements of § 51.230(d) of this chapter are not met since statutory authority to prevent construction, modification, or operation of a facility, building, structure, or installation, or combination thereof, which indirectly results or may result in emissions of any air pollutant at any location which will prevent the maintenance of a national air quality standard is not adequate.

[37 FR 10892, May 31, 1972, as amended at 39 FR 7284, Feb. 25, 1974; 41 FR 10065, Mar. 9, 1976; 51 FR 40676, Nov. 7, 1986]