49 CFR § 172.503 Hazardous Materials Table, Special Provisions, Hazardous Materials Communications, Emergency Response Information, Training Requirements, and Security Plans

§ 172.503 Identification number display on placards.

Current through Sep 25, 2026 · Read all of Part 172

For procedures and limitations pertaining to the display of identification numbers on placards, see § 172.334.

[Amdt. 172-58, 45 FR 34701, May 22, 1980]

Interpretation letters (3)

Marking requirements for portable tanks — PHMSA, May 26, 2020
Display of Identification Numbers on Placards for Class 1, Explosive Materials — PHMSA, Jun 9, 2011
Clarification of the Placarding Requirements for Radioactive Materials — PHMSA, Apr 2, 2010