Section 172.527 - Background requirements for certain placards(a) Except for size and color, the square background required by §172.510(a) for certain placards on rail cars, and §172.507 for placards on motor vehicles containing a package of highway route controlled quantity radioactive materials, must be as follows: View or download PDF
(b) In addition to meeting the requirements of §172.519 for minimum durability and strength, the square background must consist of a white square measuring 141/4 inches (362.0 mm.) on each side surrounded by a black border extending to 151/4 inches (387.0 mm.) on each side.Amdt. 172-29, 41 FR 15996, 4/15/1976, as amended by Amdt. 172-64, 46 FR 5316, 1/19/1981; Amdt. 172-78, 48 FR 10226, 3/10/1983