Regulations last checked for updates: Sep 27, 2021

Title 23 - Highways last revised: Sep 20, 2021
authority: 23 U.S.C. 109,315,and; Sec. 1073 of Pub. L. 102-240, 105 Stat. 1914, 2012; 49 CFR 1.48(b) and (n)
source: 62 FR 15397, Apr. 1, 1997, unless otherwise noted.