Prohibited and permissive placarding.

(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.#