Tank vehicles shall be in accordance with Sections 57.5003.15.1 through 57.5003.15.2 when used for the transportation of any of the following hazardous materials:
1. Liquefied Flammable Gasses.
2. Flammable Gasses.
3. Gaseous Toxic Materials or Gaseous Oxidizing Materials when transported at pressures in excess of 0.5 psig.
4. Liquefied Toxic Materials or Liquefied Oxidizing Materials having a vapor pressure in excess of 14.7 psig at a temperature of 100°F.