Final answer:
Before moving a cargo tank of hazardous materials, ensure that all manholes and valves are closed and double-check the air brake system, following DOT and EPA regulations (4).
Step-by-step explanation:
Before moving a cargo tank of hazardous material, find out which regulations apply such as those from the United States Department of Transportation or the EPA's hazardous waste regulations. This includes ensuring that all manholes and valves are properly closed to prevent any leakage of the hazardous materials. While it isn't a requirement to call Chemtrec before moving the tank, it is crucial to double-check the air brake system, as well as understand the correct protocol in case of accidents or chemical spills which can include calling emergency response agencies such as Chemtrec. Knowing the location of safety equipment, how to work with chemicals safely, and the correct disposal of hazardous waste are also important precautions to take, though not part of the immediate actions before moving the cargo tank.
Before moving a cargo tank of hazardous material, you must do all of the above mentioned options: double check the air brake system, close all manholes and valves, and call Chemtrec at (800) 424-9300. These safety precautions are necessary to ensure the safe transportation of hazardous materials and to prevent accidents or leaks that could harm people or the environment.