49 CFR Ch. I (10–1–12 Edition) § 174.84

49 CFR Ch. I (10–1–12 Edition) § 174.84

§ 174.84 49 CFR Ch. I (10–1–12 Edition) (3) Struck by any car moving under § 174.84 Position in train of loaded its own momentum. placarded rail cars, transport vehi- (c) A placarded flatcar, or a flatcar cles, freight containers or bulk carrying a placarded transport vehicle, packagings when accompanied by guards or technical escorts. freight container, or bulk packaging under this subchapter may not be cut A rail car placarded in Division 1.1 or off while in motion. 1.2 (explosive); Division 2.3 (Hazard (d) No rail car moving under its own Zone A; poisonous gas); or Division 6.1 momentum may be permitted to strike (PG I, Hazard Zone A; poisonous liquid) in a moving or standing train must be any placarded flatcar or any flatcar next to and ahead of any car occupied carrying a placarded transport vehicle, by the guards or technical escorts ac- freight container, or bulk packaging. companying the placarded rail car. (e) No placarded flatcar or any flat- However, if a rail car occupied by the car carrying a placarded transport ve- guards or technical escorts has tem- hicle, freight container, or bulk pack- perature control equipment in oper- aging may be coupled into with more ation, it must be the fourth car behind force than is necessary to complete the any car requiring Division 1.1 or 1.2 coupling. (explosive) placards. (f) When transporting a rail car, [Amdt. 174–68, 55 FR 52680, Dec. 21, 1990, as transport vehicle, or freight container amended at 56 FR 66281, Dec. 20, 1991; 66 FR placarded for Division 1.1 or 1.2 (explo- 45383, Aug. 28, 2001] sive) materials in a terminal, yard, or on a side track or siding, the placarded § 174.85 Position in train of placarded rail car must be separated from the en- cars, transport vehicles, freight gine by at least one non-placarded rail containers, and bulk packagings. car and must be placed in a location so (a) Except as provided in paragraphs that it will be safe from danger of fire. (b) and (c) of this section, the position A rail car, transport vehicle, or freight in a train of each loaded placarded car, container placarded for Division 1.1 or transport vehicle, freight container, 1.2 (explosive) materials may not be and bulk packaging must conform to placed under a bridge or overhead the provisions of this section. (b) A car placarded ‘‘RADIOACTIVE’’ crossing, or in or alongside a passenger must comply with train positioning re- shed or station, except during transfer quirements of paragraph (d) of this sec- operations. tion and must be separated from a lo- [Amdt. 174–68, 55 FR 52680, Dec. 21, 1990, as comotive, occupied caboose, or carload amended at 56 FR 66281, Dec. 20, 1991; Amdt. of undeveloped film by at least one 174–75, 58 FR 50237, Sept. 24, 1993; Amdt. 174– non-placarded car. 77, 59 FR 48549, Sept. 21, 1994; Amdt. 174–83, 61 (c) A tank car containing the residue FR 51339, Oct. 1, 1996; 66 FR 45383, Aug. 28, of a hazardous material must be sepa- 2001] rated 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 Placard Placard Group Placard Group Placard Group 1 2 3 Group 4 RESTRICTIONS Tank Rail Tank Rail Rail Car Car Car Car Car Rail Car 1. When train length permits, placarded car may not be nearer than X X X the sixth car from the engine or occupied caboose. 2. When train length does not permit, placarded car must be placed X X X near the middle of the train, but not nearer than the second car from an engine or occupied caboose. 3. A placarded car may not be placed next to an open-top car when X X X any of the lading in the open top car protrudes beyond the car ends, or if the lading shifted, would protrude beyond the car ends.. 732 VerDate Mar<15>2010 14:52 Nov 15, 2012 Jkt 226218 PO 00000 Frm 00742 Fmt 8010 Sfmt 8010 Q:\49\49V2.TXT ofr150 PsN: PC150.

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