40 CFR § 52.382 - Significant deterioration of air quality.
---
identifier: "/us/cfr/t40/s52.382"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 52.382 - Significant deterioration of air quality."
title_number: 40
title_name: "Protection of Environment"
section_number: "52.382"
section_name: "Significant deterioration of air quality."
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"
---
# 52.382 Significant deterioration of air quality.
(a) The requirements of sections 160 through 165 of the Clean Air Act are not met, since the plan does not include approvable provisions for the NO<sub>2</sub> increments under the prevention of significant deterioration program.
(b) The increments for nitrogen dioxide promulgated on October 17, 1988 (53 FR 40671), and related requirements in 40 CFR 52.21 except paragraph (a)(1), are hereby incorporated and made part of the applicable implementation plan for the State of Connecticut.
[58 FR 10964, Feb. 23, 1993, as amended at 68 FR 11322, Mar. 10, 2003; 68 FR 74488, Dec. 24, 2003]