Final answer:
An EMT has several resources to help identify unknown hazardous materials, including the United States Department of Transportation hazardous materials regulations, EPA's hazardous waste regulations, hazard diamonds, and safety equipment in the laboratory.
Step-by-step explanation:
An EMT has several resources to help identify an unknown hazardous material. One important resource is the United States Department of Transportation hazardous materials regulations, which provide guidelines for identifying and handling hazardous materials. Additionally, the EPA's hazardous waste regulations can also be used to identify hazardous materials.
Another helpful resource is the hazard diamond, which is a symbol that provides information about the various dangers associated with a substance. It is often found on containers of chemicals and summarizes the hazards to be aware of when working with a particular substance.
Furthermore, an EMT may rely on specific safety equipment in the laboratory, such as fire extinguishers and eyewash stations, to help identify and respond to an unknown hazardous material.