CFR›Title 50›Chapter I›Part 37›Subpart D ContainsSections 37.31–37.33CorpusDaily eCFRDisplayed edition2026-05-08Last updated2026-05-08 Subpart D—Environmental Protection Sections 37.31 § 37.31 Environmental protection. 37.32 § 37.32 Special areas. 37.33 § 37.33 Environmental briefing. Previous C Subpart C—Exploration Plans Next E Subpart E—General Administration