Personnel working with hazardous materials in the United States may be required to have specific training to meet both client and regulatory requirements. The agency enforcing the regulations can further break out the hazardous materials training requirements based on the associate's type of work.
The Pipeline and Hazardous Materials Safety Administration (PHMSA) enforces hazardous materials transportation operations with oversight by the Department of Transportation (DOT). The Occupational Safety and Health Administration (OSHA) under the Department of Labor (DOL) enforce general operations, emergency response, and waste clean-up operations. The Environmental Protection Agency (EPA) enforces hazardous waste management and disposal operations.