49 C.F.R. § 172.521
DANGEROUS placard.
Cite as 49 C.F.R. § 172.521 (2026)
(a) Except for size and color, the DANGEROUS placard must be as follows:
(b) In addition to meeting the requirements of § 172.519, and appendix B to this part, the DANGEROUS placard must have a red upper and lower triangle. The placard center area and
1/2
-inch (12.7 mm.) border must be white. The inscription must be black with the
1/8
-inch (3.2 mm.) border marker in the white area at each end of the inscription red.
[Amdt. 172-29, 41 FR 15996, Apr. 15, 1976, as amended by Amdt. 172-29A, 41 FR 40680, Sept. 20, 1976]
- Cross-references to the CFR
- 172.519