§ 172.510 Special placarding provisions: Rail.
发布08-07
生效09-08
摘要总结AI 辅助解读
本规定明确美国铁路危险品运输中需使用白色方形背景张贴特定标牌的情形。主要涵盖三类：1. 1.1/1.2类爆炸品；2. 2.3类A区或6.1类I包A区的有毒气体/物质（含残留罐车）；3. DOT 113型罐车运输的2.1类易燃气体（含残留）。此外，若爆炸性弹药同时符合吸入毒性定义，须同时张贴爆炸品与毒气/吸入危害标牌。该条款旨在通过视觉强化高危货物识别，确保铁路装卸及应急响应安全。
- (a) White square background. The following must have the specified placards placed on a white square background, as described in § 172.527:
- (1) Division 1.1 and 1.2 (explosive) materials which require EXPLOSIVES 1.1 or EXPLOSIVES 1.2 placards affixed to the rail car;
- (2) Materials classed in Division 2.3 Hazard Zone A or 6.1 Packing Group I Hazard Zone A which require POISON GAS or POISON placards affixed to the rail car, including tank cars containing only a residue of the material; and
- (3) Class DOT 113 tank cars used to transport a Division 2.1 (flammable gas) material, including tank cars containing only a residue of the material.
- (b) Chemical ammunition. Each rail car containing Division 1.1 or 1.2 (explosive) ammunition which also meets the definition of a material poisonous by inhalation (see § 171.8 of this subchapter) must be placarded EXPLOSIVES 1.1 or EXPLOSIVES 1.2 and POISON GAS or POISON INHALATION HAZARD.
[Amdt. 172-29, 41 FR 15996, Apr. 15, 1976, as amended by Amdt. 172-103, 51 FR 5971, Feb. 18, 1986; Amdt. 172-110, 52 FR 29528, Aug. 10, 1987; Amdt. 172-111, 52 FR 36671, Sept. 30, 1987; Amdt. 172-123, 55 FR 52601, Dec. 21, 1990; 56 FR 66260, Dec. 20, 1991; 57 FR 45460, Oct. 1, 1992; Amdt. 172-248, 61 FR 28676, June 5, 1996; Amdt. 172-151, 62 FR 1231, Jan. 8, 1997; 62 FR 39398, July 22, 1997]