Which of the following best describes a TSDF's role?

• A. A facility that treats, stores, or disposes of hazardous waste under permit and regulatory oversight
• B. A facility that handles nonhazardous waste only
• C. A municipal landfill without a permit
• D. A household hazardous waste drop-off center

Answer: (A)

A TSDF is a facility that treats, stores, or disposes of hazardous waste under a permit and regulatory oversight. This means it operates under specific RCRA requirements that govern how hazardous waste is handled, with design, operating, and closure standards to prevent releases to air, soil, and water. The permit and oversight ensure proper management for processes that change waste characteristics, temporarily contain waste, or ultimately dispose of it in a regulated way.

Other descriptions don’t fit because they either involve nonhazardous waste only, lack the required permit and regulatory controls, or serve as simple household hazardous waste drop-off sites that do not function as an authorized hazardous waste treatment, storage, or disposal facility.