§ 172.502 Prohibited and permissive placarding.
发布08-07
生效09-08
摘要总结AI 辅助解读
本条款（49 CFR § 172.502）规定了美国危险品运输中禁止和允许张贴标牌的情形。核心原则是：除非货物确属危险品且标牌准确反映其危害，否则严禁在包装、集装箱或车辆上张贴任何符合该子部分规定的危险品标牌。同时，禁止张贴可能与标准标牌混淆的标语或图案（如“Drive Safely”）。例外情况包括：符合TDG/IMDG/UN标准的国际运输容器，以及特定的生物危害、高温、酸原油标记等。此外，即使不强制要求，若符合规范也允许自愿张贴标牌以增强警示。
- (a) Prohibited placarding. Except as provided in paragraph (b) of this section, no person may affix or display on a packaging, freight container, unit load device, motor vehicle or rail car—
- (1) Any placard described in this subpart unless—
- (i) The material being offered or transported is a hazardous material;
- (ii) The placard represents a hazard of the hazardous material being offered or transported; and
- (iii) Any placarding conforms to the requirements of this subpart.
- (2) Any sign, advertisement, slogan (such as “Drive Safely”), or device that, by its color, design, shape or content, could be confused with any placard prescribed in this subpart.
- (b) Exceptions. (1) The restrictions in paragraph (a) of this section do not apply to a bulk packaging, freight container, unit load device, transport vehicle or rail car which is placarded in conformance with TDG Regulations, the IMDG Code or the UN Recommendations (IBR, see § 171.7 of this subchapter).
- (2) The restrictions of paragraph (a) of this section do not apply to the display of a BIOHAZARD marking, a “HOT” marking, a sour crude oil hazard marking, or an identification number on a white square-on-point configuration in accordance with § 172.323(c), § 172.325(c), § 172.327(a), or § 172.336(b) of this part, respectively.
- (c) Permissive placarding. Placards may be displayed for a hazardous material, even when not required, if the placarding otherwise conforms to the requirements of this subpart.
[Amdt. 172-123, 55 FR 52599, Dec. 21, 1990, as amended at 56 FR 66259, Dec. 20, 1991; Amdt. 172-151, 62 FR 1230, Jan. 8, 1997; 62 FR 39389, 39407, July 22, 1997; 66 FR 8647, Feb. 1, 2001; 66 FR 33426, June 21, 2001; 67 FR 53137, Aug. 14, 2002; 68 FR 75741, Dec. 31, 2003; 76 FR 3367, Jan. 19, 2011; 80 FR 72923, Nov. 23, 2015]