CFR›Title 23›Chapter I›23 CFR Part 625 Citation23 CFR Part 625ContainsSections § 625.1–§ 625.4CorpusDaily eCFRDisplayed edition2026-09-24Last updated2026-09-24 PART 625—DESIGN STANDARDS FOR HIGHWAYS Sections § 625.1 § 625.1 Purpose. § 625.2 § 625.2 Policy. § 625.3 § 625.3 Application. § 625.4 § 625.4 Standards, policies, and standard specifications. Authority23 U.S.C. 103, 109, 315, and 402; Sec. 1073 of Pub. L. 102-240, 105 Stat. 1914, 2012; Sec. 1404 of Pub. L. 114-94, 129 Stat. 1312; 49 CFR 1.85.Source62 FR 15397, Apr. 1, 1997, unless otherwise noted.