CFR›Title 49›Subtitle B›Chapter II›Part 264 ContainsSection 264.101CorpusDaily eCFRDisplayed edition2026-04-27Last updated2026-04-27 PART 264—ENVIRONMENTAL IMPACT AND RELATED PROCEDURES Sections 264.101 § 264.101 Cross reference to environmental impact and related procedures. Authority42 U.S.C. 4321 et seq.; 49 U.S.C. 303 and 24201; 23 U.S.C. 139, 327, 330; 49 CFR 1.81; Pub. L. 112-141, 126 Stat. 405, Section 1319; and Pub. L. 114-94, 129 Stat. 1312, Sections 1309, 1432, 11502, and 11503.Source79 FR 55403, Sept. 16, 2014, unless otherwise noted. Previous 262 Part 262—Implementation of Program for Capital Grants for Rail Line Relocation and Improvement Projects Next 266 Part 266—Assistance to States for Local Rail Service Under Section 5 of the Department of Transportation Act