scope:

This standard shall apply to tank vehicles used for the transportation of asphalt and for the transportation of normally stable ignitible (flammable and combustible) liquids with flash points below 200°F (93°C).

This standard shall also 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 ignitible (flammable and combustible) liquids having characteristics that introduce additional factors such as high rates of expansion, instability, corrosiveness, and toxicity.

The provisions of this standard shall also apply to cutback 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.

A tank vehicle transporting an ignitible (flammable or combustible) liquid in interstate service shall be considered to be in compliance with this standard while it is in interstate service if it meets the requirements of the U.S. Department of Transportation in 49 CFR 171-179, "Hazardous Materials Regulations."