---identifier: "/us/cfr/t23/s635.409"source: "ecfr"legal_status: "authoritative_unofficial"title: "23 CFR § 635.409 - Restrictions upon materials."title_number: 23title_name: "Highways"section_number: "635.409"section_name: "Restrictions upon materials."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/s635.409
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).
# 635.409 Restrictions upon materials.No requirement shall be imposed and no procedure shall be enforced by any State transportation department in connection with a project which may operate:(a) To require the use of or provide a price differential in favor of articles or materials produced within the State, or otherwise to prohibit, restrict or discriminate against the use of articles or materials shipped from or prepared, made or produced in any State, territory or possession of the United States; or(b) To prohibit, restrict or otherwise discriminate against the use of articles or materials of foreign origin to any greater extent than is permissible under policies of the Department of Transportation as evidenced by requirements and procedures prescribed by the FHWA Administrator to carry out such policies.