Regulations last checked for updates: Sep 27, 2021

Title 23 - Highways last revised: Sep 20, 2021
authority: 23 U.S.C. 109,315; sec. 1604(b)(5) and (b)(6), Pub. L. 109-59, 119 Stat. 1144; 49 CFR 1.48
source: 74 FR 51771, Oct. 8, 2009, unless otherwise noted.