scope:

This standard shall apply to tank vehicles to be used for the transportation of asphalt or normally stable flammable and combustible liquids with a flash point below 200°F (93.4°C). It shall provide minimum requirements for the design and construction of cargo tanks and their appurtenances and shall set forth certain matters pertaining to tank vehicles.

The provisions of this standard shall not preclude the use of additional safeguards for tank vehicles used for the transportation of flammable and combustible liquids having characteristics introducing additional factors such as high rates of expansion, instability, corrosiveness, and toxicity.

The provisions of this standard shall also apply to cut-back asphalts that have flash points below 100°F (37.8°C) and to liquids transported at temperatures elevated above their flash points.

The requirements for aircraft fuel servicing tank vehicles shall be in accordance with NFPA 407, Standard for Aircraft Fuel Servicing.

A tank vehicle transporting a flammable or combustible liquid in interstate service shall be considered to be in conformity with this standard while it is in interstate service if it meets the requirements of the U.S. Department of Transportation "Hazardous Materials Regulations," Title 49, Code of Federal Regulations, Parts 171-179.