Regulations last checked for updates: Apr 19, 2024

Title 23 - Highways last revised: Jan 18, 2024
authority: 23 U.S.C. 134,135,303,and; 49 U.S.C. 5303–5305; 23 CFR 1.32; and 49 CFR 1.48 and 1.51
source: 61 FR 67170, Dec. 19, 1996, unless otherwise noted.