49 C.F.R. § 172.304 Marking requirements.
Title 49 - Transportation
(a) The marking required in this subpart— (1) Must be durable, in English and printed on or affixed to the surface of a package or on a label, tag, or sign. (2) Must be displayed on a background of sharply contrasting color; (3) Must be unobscured by labels or attachments; and (4) Must be located away from any other marking (such as advertising) that could substantially reduce its effectiveness. (b) [Reserved] [Amdt. 172–29, 41 FR 15996, Apr. 15, 1976, as amended by Amdt. 172–29B, 41 FR 57067, Dec. 30, 1976]
Title 49: Transportation
PART 172—HAZARDOUS MATERIALS TABLE, SPECIAL PROVISIONS, HAZARDOUS MATERIALS COMMUNICATIONS, EMERGENCY RESPONSE INFORMATION, AND TRAINING REQUIREMENTS
Subpart D—Marking
§ 172.304 Marking requirements.