CFR›Title 30›Chapter V›Part 550›30 CFR Part 550 Subpart D Citation30 CFR Part 550 Subpart DContainsSection § 550.400CorpusDaily eCFRDisplayed edition2026-09-23Last updated2026-09-23 Subpart D—Leasing Maps and Diagrams Sections § 550.400 § 550.400 Leasing maps and diagrams. Authority30 U.S.C. 1751; 31 U.S.C. 9701; 43 U.S.C. 1334.Source76 FR 64623, Oct. 18, 2011, unless otherwise noted.