49 C.F.R. § 172.554 POISON placard.
Title 49 - Transportation
(a) Except for size and color, the POISON placard must be as follows: (b) In addition to complying with §172.519, the background on the POISON placard must be white. The symbol, text, class number and inner border must be black. The word “TOXIC” may be used in lieu of the word “POISON”. [Amdt. 172–123, 56 FR 66264, Dec. 20, 1991, as amended by Amdt. 172–139, 59 FR 67490, Dec. 29, 1994]
Title 49: Transportation
PART 172—HAZARDOUS MATERIALS TABLE, SPECIAL PROVISIONS, HAZARDOUS MATERIALS COMMUNICATIONS, EMERGENCY RESPONSE INFORMATION, AND TRAINING REQUIREMENTS
Subpart F—Placarding
§ 172.554 POISON placard.