Which federal agency regulates the transportation of hazardous materials?

The correct choice focuses on the Federal Motor Carrier Safety Administration (FMCSA), which is the agency responsible for regulating the transportation of hazardous materials by road. One of the FMCSA’s primary functions is to enforce safety regulations related to commercial motor vehicles, which includes the safe transport of hazardous materials. This encompasses overseeing proper labeling, packaging, and handling to ensure compliance with safety standards and the protection of public health and the environment during the transportation process.

While other agencies mentioned in the choices have important regulatory roles, they do not specifically deal with the transport of hazardous materials in the same capacity as the FMCSA. The Federal Aviation Administration (FAA) is concerned with aviation safety, the Federal Communications Commission (FCC) oversees communication industries, and the Environmental Protection Agency (EPA) focuses more on environmental protection rather than direct transportation regulations. Understanding the specific role of the FMCSA highlights its critical function in maintaining safety standards for hazardous materials on the road.