40 CFR § 52.1775 - Rules and regulations.

---
identifier: "/us/cfr/t40/s52.1775"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 52.1775 - Rules and regulations."
title_number: 40
title_name: "Protection of Environment"
section_number: "52.1775"
section_name: "Rules and regulations."
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"
---


# 52.1775 Rules and regulations.

Paragraph (g) of regulation 2D.0535 is disapproved because its automatic exemption for excess emissions during startup and shutdown is inconsistent with the Clean Air Act.

[51 FR 32075, Sept. 9, 1986]