Regulations last checked for updates: Sep 29, 2023

Title 23 - Highways last revised: Jun 05, 2023
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.