Which term is often used interchangeably with 'HAZ MAT' in transportation regulations?

The term 'HAZ MAT' is short for 'Hazardous Materials.' In the context of transportation regulations, it specifically refers to any substance that has the potential to cause harm to people, property, or the environment during transportation. Hazardous materials can include a wide range of items, such as chemicals, explosives, and radioactive materials, which are subject to strict regulations to ensure safety during handling and movement.

Using 'Hazardous Substances' does not capture the full scope of materials that HAZ MAT regulations cover, as 'substances' may not necessarily encompass all materials that pose a hazard during transport. 'Hazardous Waste' refers to materials that are no longer usable and are meant for disposal, while 'Hazardous Constructs' is not a recognized term in this context. Thus, 'Hazardous Materials' is the most accurate term aligned with HAZ MAT in transportation regulations.