CFR›Title 10›Chapter I›Part 51›Subpart A›Subject Group Environmental Assessment ContainsSections 51.30–51.31CorpusDaily eCFRDisplayed edition2026-05-15Last updated2026-05-15 Sections 51.30 § 51.30 Environmental assessment. 51.31 § 51.31 Determinations based on environmental assessment. Previous Draft Environmental Impact Statements—Rulemaking Draft Environmental Impact Statements—Rulemaking Next Environmental Reports—General Requirements Environmental Reports—General Requirements