What are Hazardous Materials?
Hazardous Materials Definition
Hazardous materials (HAZMAT) are substances or materials that pose a risk to health, safety, property, or the environment during transportation. These materials are regulated by the Department of Transportation (DOT) and the Federal Motor Carrier Safety Administration (FMCSA).
Key Characteristics:
- Can cause harm to people, property, or the environment
- Require special handling during transport
- Must be properly labeled, packaged, and documented
- Subject to federal regulations under 49 CFR
Common Examples:
- Flammable liquids (gasoline, diesel fuel)
- Corrosive materials (acids, batteries)
- Compressed gases (propane, oxygen)
- Explosives and oxidizers
- Toxic and infectious substances