CFR Title 49: Parts 1200-End – Transportation (Code of Federal Regulations), Revised as of October 1, 2023

Title 49 of the US Code of Federal Regulations (49 CFR) contains all US regulations dealing with Transportation in the United States. The Title is organized into nine volumes, and the regulations it contains are authored by various components of the Departments of Transportation and Homeland Security. Most notably, 49 CFR contains the US Hazardous Material Regulations (HMR) in Parts 100-177. Title Volume Chapter Browse Parts Regulatory Entity Title 49 Transportation Subtitle A—Office of the Secretary of Transportation 1   1-99 Subtitle A—Office of the Secretary of Transportation Subtitle B—Other Regulations Relating to Transportation 2 I 100-177 Pipeline and Hazardous Materials Safety Administration, Department of Transportation 3 178-199 4 II 200-299 Federal Railroad Administration, Department of Transportation 5 III 300-399 Federal Motor Carrier Safety Administration, Department of Transportation 6 V 500-571 National Highway Traffic Safety Administration, Depart