Regulations last checked for updates: Sep 26, 2021

Title 23 - Highways last revised: Sep 20, 2021
authority: 23 U.S.C. 146 and 315; sec. 126 of the Surface Transportation Assistance Act of 1978, Pub. L. 95-599, 92 Stat. 2689; 49 CFR 1.48(b)
source: 47 FR 43024, Sept. 30, 1982, unless otherwise noted.