46 C.F.R. § 42.13-40 Details of marking.
Title 46 - Shipping
(a) The ring, lines and letters shall be painted in white or yellow on a dark ground or in black on a light ground. They shall also be permanently marked on the sides of the vessels to the satisfaction of the assigning authority. The marks shall be plainly visible and, if necessary, special arrangements shall be made for this purpose. [CGFR 68–60, 33 FR 10060, July 12, 1968, as amended by CGFR 68–126, 34 FR 9014, June 5, 1969]
Title 46: Shipping
PART 42—DOMESTIC AND FOREIGN VOYAGES BY SEA
Subpart 42.13—General Rules for Determining Load Lines
§ 42.13-40 Details of marking.

