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Regulations last checked for updates: Mar 26, 2026
Title 23 - Highways last revised: Mar 05, 2026
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Title 23
Chapter I
Part 630 - PART 630—PRECONSTRUCTION PROCEDURES
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 - Subparts H-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
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