The State of Iowa has adopted by reference the federal Hazardous Materials Regulations (HMR), Title 49, Code of Federal Regulations (CFR), Parts 107, 171-173, 177, 178, and 180, as well as Parts 385 and 390-399 of the Federal Motor Carrier Safety Regulations, as adopted and amended by Iowa. These regulations apply to operators of vehicles transporting hazardous materials in commerce unless specifically exempted under Iowa law.
The State of Iowa enforces regulations governing the highway transportation of hazardous materials through its commercial vehicle safety program.
The Iowa Department of Natural Resources (DNR) administers Iowa's hazardous waste management program under authority delegated by the U.S. Environmental Protection Agency.