23 CFR § 635.403 - Definitions.

---
identifier: "/us/cfr/t23/s635.403"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "23 CFR § 635.403 - Definitions."
title_number: 23
title_name: "Highways"
section_number: "635.403"
section_name: "Definitions."
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: false
currency: "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"
---


# 635.403 Definitions.

As used in this subpart, the following terms have the meanings indicated:

(a) *FHWA Division Administrator* means the chief Federal Highway Administration (FHWA) official assigned to conduct business in a particular State;

(b) *Material* means any tangible substance incorporated into a Federal-aid highway project;

(c) *PS&E* means plans, specifications, and estimates;

(d) *Special provisions* means additions and revisions to the standard and supplemental specifications applicable to an individual project;

(e) *Standard specifications* means a compilation in book form of specifications approved for general application and repetitive use;

(f) *State* has the meaning set forth in 23 U.S.C. 101;

(g) *State transportation department* means that department, commission, board, or official of any State charged by its laws with the responsibility for highway construction;

(h) *Supplemental specifications* means approved additions and revisions to the standard specifications.