CFR›Title 40›Chapter I›Part 72›Subpart H ContainsSections 72.80–72.85CorpusDaily eCFRDisplayed edition2026-04-27Last updated2026-04-27 Subpart H—Permit Revisions Sections 72.80 § 72.80 General. 72.81 § 72.81 Permit modifications. 72.82 § 72.82 Fast-track modifications. 72.83 § 72.83 Administrative permit amendment. 72.84 § 72.84 Automatic permit amendment. 72.85 § 72.85 Permit reopenings. Previous G Subpart G—Acid Rain Phase II Implementation