Which agency is NOT directly involved with the management of hazardous material transportation?

The Federal Aviation Administration (FAA) is primarily responsible for regulating and overseeing civil aviation in the United States, focusing on commercial aviation, pilot licensing, air traffic control, and aircraft safety among other aspects. While the FAA does have regulations that pertain to safety in the transportation of hazardous materials by air, it does not directly manage the broader aspects of hazardous material transportation across all modes, such as ground or maritime transport.

In contrast, the Environmental Protection Agency (EPA), Department of Transportation (DOT), and National Response Center (NRC) have specific roles that involve the regulation, enforcement, and response to hazardous materials incidents. The EPA sets regulations concerning the safe management of hazardous wastes and pollutants, while the DOT oversees the safe transportation of hazardous materials on all public roadways. The NRC serves as a primary contact point for reporting hazardous material incidents and coordinating responses, which places it squarely in the realm of hazardous material management.

Understanding the distinct roles of these agencies highlights why the FAA is the option that is not directly involved in this area, as its primary focus lies outside the management of hazardous materials transportation.