§ 172.304 Marking requirements.
Current through Sep 25, 2026 · Read all of Part 172
(a) The marking required in this subpart—
(1) Must be durable, in English and printed on or affixed to the surface of a package or on a label, tag, or sign.
(2) Must be displayed on a background of sharply contrasting color;
(3) Must be unobscured by labels or attachments; and
(4) Must be located away from any other marking (such as advertising) that could substantially reduce its effectiveness.
(b) [Reserved]
[Amdt. 172-29, 41 FR 15996, Apr. 15, 1976, as amended by Amdt. 172-29B, 41 FR 57067, Dec. 30, 1976]
Interpretation letters (21)
- Marine Pollutants Continuing in Domestic Ground Transportation — PHMSA, Oct 6, 2026
- Hazard Communication for Packages of Universal Waste Batteries — PHMSA, Jan 6, 2026
- Label Visibility Requirements and Cargo Securement — PHMSA, May 13, 2025
- Labeling Jet Perforating Guns — PHMSA, Aug 19, 2021
- Marking and labeling Class 7 material with a tag — PHMSA, Nov 15, 2017
- Reduced Size Labels — PHMSA, Sep 29, 2016
- Cargo Tank Marking of Company Name and Material Proper Shipping Name — PHMSA, Jun 25, 2015
- Marking Requirement for § 173.156 Limited Quantity Shipment — PHMSA, Apr 2, 2015
- Clarification of the Marking Requirements for Non-bulk Packages — PHMSA, Jan 8, 2015
- Limited Quantity Marking Size Requirements — PHMSA, Oct 23, 2013