Final answer:
Hazard Class 9 includes miscellaneous hazardous materials that do not fit into any specific hazard class but still pose a risk during transportation.
Step-by-step explanation:
Hazard Class 9, as regulated by the United States Department of Transportation and EPA's hazardous waste regulations, includes miscellaneous hazardous materials. These may be substances that do not fit into any specific hazard class but still pose a risk during transportation.
Examples of materials regulated under Hazard Class 9 include:
- Combustible liquid, n.o.s. (not otherwise specified)
- Dry ice
- Lithium batteries (UN 3090, UN 3480, UN 3091, UN 3481)
- Environmentally hazardous substance, liquid, n.o.s.
- UN3373 Biological substance, Category B
These materials are classified as Hazard Class 9 due to their potential for hazards during transportation, such as flammability, reactivity, or the potential to harm the environment.