A hazardous material is any chemical that is a physical hazard or a health hazard as defined under 40 CFR Part 302. Hazardous materials also include:
- Radioactive and non-radioactive materials
- Explosives in reportable quantities
- Other chemical hazards
You can read the EPA's List of List (December 2022) (PDF). This list describes the chemicals that facilities must report according to the EPCRA, Comprehensive Environmental Response, Compensation and Liability Act (CERCLA), and Section 112(r) of the Clean Air Act.