How To Use : The Hazardous Materials Regulations: CFR 49 Parts 100 to 185

The USDOT issues most of the “Transportation” regulations in Title 49 – Transportation, Code of Federal Regulations (49 CFR). The Hazardous Materials Regulations (HMR) are in the volume containing Parts 100-185 and govern the transportation of hazardous materials in all modes of transportation – air, highway, rail and water.

The Code of Federal Regulations (CFR) has the force of the law. The regulations are
issued by Federal agencies to carry out the responsibilities imposed on those agencies by Congress.