§ 174.85 — Position In Train Of Placarded Cars, Transport Vehicles, Freight Containers, And Bulk Packagings

(a) Except as provided in paragraphs (b) and (c) of this section, the position in a train of each loaded placarded car, transport vehicle, freight container, and bulk packaging must conform to the provisions of this section.

(b) A car placarded “RADIOACTIVE” must comply with train positioning requirements of paragraph (d) of this section and must be separated from a locomotive, occupied caboose, or carload of undeveloped film by at least one non-placarded car.

(c) A tank car containing the residue of a hazardous material must be separated from a locomotive or occupied caboose by at least one rail car other than a placarded tank car.

(d) Position of rail cars in a train. In the following table:

Position in Train of Placarded Cars Transporting Hazardous Materials

(1) Where an “X” appears at the intersection of a Placard Group column and a Restriction row, the corresponding restriction applies.

(2) “Rail Car” means a car other than a tank car.

(3) For purposes of this subpart, each unit of an articulated intermodal rail car shall be considered as one car.