49 C.F.R. Subpart G—Detailed Requirements for Class 3 (Flammable Liquid) Materials
Title 49 - Transportation
(a) Class 3 (flammable liquid) materials may not be loaded, transported, or stored in a rail car equipped with any type of lighted heater or open-flame device, or in a rail car equipped with any apparatus or mechanism utilizing an internal combustion engine in its operation. (b) A truck body or trailer which is loaded with a Class 3 (flammable liquid) materials and equipped with a lighted heater or any automatic heating or refrigerating apparatus may not be loaded on a flatcar except as provided in paragraph (c) of this section. (c) Heating or refrigeration apparatus on a motor vehicle loaded with Class 3 (flammable liquid) materials may be operated while the motor vehicle is loaded on a flatcar only if: (1) The lading space is not equipped with any electrical apparatus that is not non-sparking or explosion-proof; (2) There is no combustion apparatus in the lading space; (3) There is no connection for the return of air from the lading space to any combustion apparatus; and (4) The heating system conforms to §393.77 of this title and does not heat any part of the lading over 54 °C (129 °F). (d) Metal barrels or drums containing Class 3 (flammable liquid) materials may be transported in a steel gondola or flatcar or in a stock car. However, they may not be transported in a hopper bottom car. [Amdt. 174–26, 41 FR 16092, Apr. 15, 1976, as amended by Amdt. 174–31, 43 FR 31143, July 20, 1978; Amdt. 174–68, 55 FR 52683, Dec. 21, 1990] A tank car containing a Class 3 (flammable liquid) material, other than liquid road asphalt or tar, may not be transported by rail unless it is originally consigned or subsequently reconsigned to a party having a private track on which it is to be delivered and unloaded (see §171.8 of this subchapter) or to a party using railroad siding facilities which are equipped for piping the liquid from the tank car to permanent storage tanks of sufficient capacity to receive the entire contents of the car. [Amdt. 174–26, 41 FR 16092, Apr. 15, 1976, as amended by Amdt. 174–32, 43 FR 48644, Oct. 19, 1978; Amdt. 174–68, 55 FR 52683, Dec. 21, 1990]
Title 49: Transportation
PART 174—CARRIAGE BY RAIL
Subpart G—Detailed Requirements for Class 3 (Flammable Liquid) Materials
§ 174.300 Special handling requirements.
§ 174.304 Class 3 (flammable liquid) materials in tank cars.
