§ 172.548 DANGEROUS WHEN WET placard.

PART 172—HAZARDOUS MATERIALS TABLE, SPECIAL PROVISIONS, HAZARDOUS MATERIALS COMMUNICATIONS, EMERGENCY RESPONSE INFORMATION, TRAINING REQUIREMENTS, AND SECURITY PLANS, last amended 2016-08-15

Official text from eCFR.gov, up to date as of 2026-10-22. Checked for changes every day.

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(a) Except for size and color, the DANGEROUS WHEN WET placard must be as follows:

(b) In addition to complying with § 172.519, the background color on the DANGEROUS WHEN WET placard must be blue. The letters in the words “WHEN WET” must be at least 25 mm (1.0 inches) high. The symbol, text, class number and inner border must be white.

Official text from the eCFR. The eCFR is an authoritative but unofficial editorial compilation; the Federal Register is the legal source.