---identifier: "/us/cfr/t23/s635.401"source: "ecfr"legal_status: "authoritative_unofficial"title: "23 CFR § 635.401 - Purpose."title_number: 23title_name: "Highways"section_number: "635.401"section_name: "Purpose."chapter_name: "FEDERAL HIGHWAY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION"subchapter_number: "G"subchapter_name: "ENGINEERING AND TRAFFIC OPERATIONS"part_number: "635"part_name: "CONSTRUCTION AND MAINTENANCE"positive_law: falsecurrency: "2026-04-05"last_updated: "2026-04-05"format_version: "1.1.0"generator: "[email protected]"authority: "Sections 1525 and 1303 of Pub. L. 112-141, Sec. 1503 of Pub. L. 109-59, 119 Stat. 1144; 23 U.S.C. 101 (note), 109, 112, 113, 114, 116, 119, 128, and 315; 31 U.S.C. 6505; 42 U.S.C. 3334, 4601 Sec. 1041(a), Pub. L. 102-240, 105 Stat. 1914; 23 CFR 1.32; 49 CFR 1.85(a)(1)."cfr_part: "635"---
Identifier
/us/cfr/t23/s635.401
Currency
2026-04-05
Positive Law
No
Updated
2026-04-05
Chapter
Federal Highway Administration, Department of Transportation
Authority
Sections 1525 and 1303 of Pub. L. 112-141, Sec. 1503 of Pub. L. 109-59, 119 Stat. 1144; 23 U.S.C. 101 (note), 109, 112, 113, 114, 116, 119, 128, and 315; 31 U.S.C. 6505; 42 U.S.C. 3334, 4601 Sec. 104... Sections 1525 and 1303 of Pub. L. 112-141, Sec. 1503 of Pub. L. 109-59, 119 Stat. 1144; 23 U.S.C. 101 (note), 109, 112, 113, 114, 116, 119, 128, and 315; 31 U.S.C. 6505; 42 U.S.C. 3334, 4601 Sec. 1041(a), Pub. L. 102-240, 105 Stat. 1914; 23 CFR 1.32; 49 CFR 1.85(a)(1).
# 635.401 Purpose.The purpose of this subpart is to prescribe requirements and procedures relating to product and material selection and use on Federal-aid highway projects.