Code of Federal Regulations > Title 23 > Chapter I > Part 630 - PART 630—PRECONSTRUCTION PROCEDURES

U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

Subpart A [§ 630.102 - § 630.112] - Subpart A—Project Authorization and Agreements

Subpart B [§ 630.201 - § 630.205] - Subpart B—Plans, Specifications, and Estimates

Subpart C - Subpart C [Reserved]

Subpart D [§ 630.401 - § 630.404] - Subpart D—Geodetic Markers

Subpart E - Subparts E-F [Reserved]

Subpart G [§ 630.701 - § 630.709] - Subpart G—Advance Construction of Federal-Aid Projects

Subpart H [§ 630.801 - § 630.803] - Subpart H—Bridges on Federal Dams

Subpart I - Subpart I [Reserved]

Subpart J [§ 630.1002 - § 630.1018] - Subpart J—Work Zone Safety and Mobility

Subpart K [§ 630.1102 - § 630.1112] - Subpart K—Temporary Traffic Control Devices