49 C.F.R. § 520.30
Authority: Secs. 102(a)(A), 102(2)(C), Pub. L. 91-190, 83 Stat. 853 ( 42 U.S.C. 4332 ); secs. 2(b), 4(f), Pub. L. 89-670, 80 Stat. 931 ( 49 U.S.C. 1651(b), 1653(f); E. O. 11514, 35 FR 4247; 40 CFR Part 1500; DOT Order 5610.1B, 39 FR 35234; delegations of authority at 49 CFR 1.45 , 1.50 and 501.7