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Regulationcurrent

49 CFR 172.502

Prohibited and permissive placarding.

Current as of 2026-08-18 Government source

eCFR editorial compilationAuthoritative but unofficial

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(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.#

Ocean Network Express (North America) Inc. — Hazardous Materials Safety Interpretation

Railsback HazMat Safety Professionals, LLC — Hazardous Materials Safety Interpretation

Tyson Foods — Hazardous Materials Safety Interpretation

McAnally Wilkins Inc. — Hazardous Materials Safety Interpretation

Texas Highway Patrol — Hazardous Materials Safety Interpretation

Nebraska State Patrol — Hazardous Materials Safety Interpretation

Hazardous Materials Response Unit — Hazardous Materials Safety Interpretation

Ground Up Road Construction Inc. — Hazardous Materials Safety Interpretation

Pinnacle Propane — Hazardous Materials Safety Interpretation

Denton Police Department — Hazardous Materials Safety Interpretation

YRC Freight, Inc. — Hazardous Materials Safety Interpretation

Universal Well Services, Inc. — Hazardous Materials Safety Interpretation

Western International, Inc. — Hazardous Materials Safety Interpretation

Wakefield Drilling & Blasting — Hazardous Materials Safety Interpretation

AWP, Inc. — Hazardous Materials Safety Interpretation

Enservco — Hazardous Materials Safety Interpretation

Horizon Lines — Hazardous Materials Safety Interpretation

Nebraska State Patrol — Hazardous Materials Safety Interpretation

Dannemiller Associates, Inc. — Hazardous Materials Safety Interpretation

R & L Carriers, Inc. — Hazardous Materials Safety Interpretation

Public Utilities Commission of Ohio Transportation Department Compliance Division — Hazardous Materials Safety Interpretation

McAda Fluids Heating Services — Hazardous Materials Safety Interpretation

Department of the Army — Hazardous Materials Safety Interpretation

Texas Department of Public Safety Texas Highway Patrol/Commercial Vehicle Enforcement — Hazardous Materials Safety Interpretation

Department of California Highway Patrol — Hazardous Materials Safety Interpretation

Sporting Arms & Ammunition Manufacturers Institute, Inc. — Hazardous Materials Safety Interpretation

Mr. Steven H. Wodka — Hazardous Materials Safety Interpretation

CHS Transportation — Hazardous Materials Safety Interpretation

Disposal Safety Incorporated — Hazardous Materials Safety Interpretation

URS — Hazardous Materials Safety Interpretation

Los Alamos National Laboratory — Hazardous Materials Safety Interpretation

Q. A. Safety — Hazardous Materials Safety Interpretation

HB Fuller Company — Hazardous Materials Safety Interpretation

Con-way — Hazardous Materials Safety Interpretation

Arkema Inc. — Hazardous Materials Safety Interpretation

Georgia Department of Motor Vehicle Safety — Hazardous Materials Safety Interpretation

Teton Transportation, Inc. — Hazardous Materials Safety Interpretation

Allied Universal Corp. — Hazardous Materials Safety Interpretation

Gulf States Intermodal — Hazardous Materials Safety Interpretation

Nebraska State Patrol, Carrier Enforcement Division — Hazardous Materials Safety Interpretation

Georgia Department of Motor Vehicle Safety, Law Enforcement Division — Hazardous Materials Safety Interpretation

Minnesota Department of Transportation, Office of Motor Carrier Services — Hazardous Materials Safety Interpretation

Motor Transport Association of Connecticut, Inc — Hazardous Materials Safety Interpretation

R+L Carriers — Hazardous Materials Safety Interpretation

Mr. Thomas Dutkiewicz — Hazardous Materials Safety Interpretation

Place Quick, Inc. — Hazardous Materials Safety Interpretation

Mayer, Brown & Platt — Hazardous Materials Safety Interpretation

Place Quick, Inc. — Hazardous Materials Safety Interpretation

Montana Highway Patrol — Hazardous Materials Safety Interpretation

Marsulex, Inc. — Hazardous Materials Safety Interpretation

Motor Carrier Compliance Office — Hazardous Materials Safety Interpretation

R & L Transfer, Inc. — Hazardous Materials Safety Interpretation

Safety & Compliance Associates, Inc. — Hazardous Materials Safety Interpretation