§ 172.429 POISON INHALATION HAZARD label.
Current through Sep 25, 2026 · Read all of Part 172
(a) Except for size and color, the POISON INHALATION HAZARD label must be as follows:

(b) In addition to complying with § 172.407, the background on the POISON INHALATION HAZARD label and the symbol must be white. The background of the upper diamond must be black and the lower point of the upper diamond must be 14 mm (0.54 inches) above the horizontal center line.
[62 FR 39406, July 22, 1997]
Interpretation letters (2)
- Transport of poisonous by inhalation (PIH) material — PHMSA, Mar 10, 2020
- Definition and Packaging Requirements for Poisonous by Inhalation Hazard (PIH) and Combustible Liquids — PHMSA, Sep 27, 2001