US lawFederal (United States)RegulationsTitle 40 CFR — Protection of EnvironmentChapter I — ENVIRONMENTAL PROTECTION AGENCYPart 52 — APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANSSubpart II — North Carolina52.177540 C.F.R. § 52.1775Rules and regulations.Last amended: 2016Year: 2026Length: 31 wordsOfficial source Cite as 40 C.F.R. § 52.1775 (2026)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]Previous40 C.F.R. § 52.1772Next40 C.F.R. § 52.1778