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Subpart A—General2

Subpart B—Table of Hazardous Materials and Special Provisions2

Subpart C—Shipping Papers6

Subpart D—Marking27

Subpart E—Labeling33

Subpart F—Placarding38

Subpart G—Emergency Response Information4

Subpart H—Training4

Subpart I—Safety and Security Plans5

Regulationcurrent

49 CFR 172.303

Prohibited marking.

Current as of 2026-08-18 Government source

eCFR editorial compilationAuthoritative but unofficial

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(a)No person may offer for transportation or transport a package which is marked with the proper shipping name, the identification number of a hazardous material or any other markings indicating that the material is hazardous (e.g., RQ, INHALATION HAZARD) unless the package contains the identified hazardous material or its residue.#

(b)This section does not apply to—#

(1)Transportation of a package in a transport vehicle or freight container if the package is not visible during transportation and is loaded by the shipper and unloaded by the shipper or consignee.#

(2)Markings on a package which are securely covered in transportation.#

(3)The marking of a shipping name on a package when the name describes a material not regulated under this subchapter.#

(4)Identification number markings on a cargo tank motor vehicle containing a petroleum distillate fuel in accordance with § 172.336(c).#

15-0148

New Jersey State Police — Hazardous Materials Safety Interpretation

172.303, 172.303(a) · interpreted by

New Jersey State Police — Hazardous Materials Safety Interpretation

Hexagon Ragasco North America Inc. — Hazardous Materials Safety Interpretation

Arkema Inc. — Hazardous Materials Safety Interpretation

Von Briesen & Roper, S.C. Attorneys at Law — Hazardous Materials Safety Interpretation

Nynas USA, Inc. — Hazardous Materials Safety Interpretation

Great Lakes Custom Law — Hazardous Materials Safety Interpretation

BASF Corporation — Hazardous Materials Safety Interpretation

ADG Compliance Manager — Hazardous Materials Safety Interpretation

Akrochem Corporation — Hazardous Materials Safety Interpretation

Western Manufacturing Corp. — Hazardous Materials Safety Interpretation

Arch Chemicals, Inc. — Hazardous Materials Safety Interpretation

The Sherwin-Williams Company — Hazardous Materials Safety Interpretation

Solstice Neurosciences — Hazardous Materials Safety Interpretation

Vanderbilt Chemical Corporation Murray Division — Hazardous Materials Safety Interpretation

Benjamin Moore & Co. — Hazardous Materials Safety Interpretation

ACM Global Central Laboratory — Hazardous Materials Safety Interpretation

Mr. Merle M. Schnackenberg — Hazardous Materials Safety Interpretation

The Council on Safe Transportation of Hazardous Articles, Inc. — Hazardous Materials Safety Interpretation

URS Corporation — Hazardous Materials Safety Interpretation

Railroad Commission of Texas — Hazardous Materials Safety Interpretation

Wiley Rein & Fielding LLP — Hazardous Materials Safety Interpretation

Scopelitis, Garvin, Light & Hanson — Hazardous Materials Safety Interpretation

Byfield Marine Supply — Hazardous Materials Safety Interpretation

Allied Universal Corporation — Hazardous Materials Safety Interpretation

Manufacturers Association (NEMA) — Hazardous Materials Safety Interpretation

C.L. Smith Company — Hazardous Materials Safety Interpretation

FAA — Hazardous Materials Safety Interpretation

Western International Gas — Hazardous Materials Safety Interpretation

Exide TecImologies — Hazardous Materials Safety Interpretation

The Sherman-Williams Company — Hazardous Materials Safety Interpretation

Hazmat Environmental Group, Inc — Hazardous Materials Safety Interpretation

Storage Technology Corp. — Hazardous Materials Safety Interpretation

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

Marcus & Shapira LLP — Hazardous Materials Safety Interpretation

Fluoroware, Inc. — Hazardous Materials Safety Interpretation

The Dow Chemical Company — Hazardous Materials Safety Interpretation

The Dow Chemical Company — Hazardous Materials Safety Interpretation