Code of Federal Regulations, Title 23 Highways, Revised as April 1, 2025 - Office Of The Federal Register

Title 23 presents regulations by the Federal Highway Administration and the National Highway Traffic Safety Administration detailing planning and research, engineering and traffic operations, right-of-way and environment, public transportation, and highway safety. Additions and revisions to this section of the code are posted annually by April. Publication follows within six months.
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