46 CFR § 160.044-5
Marking
April 15, 2021
(a) Each pump shall be permanently and legibly marked, in letters not less than 1⁄4 inch high, either cast or stamped on the body, with the name of the manufacturer, the size for which approved (USCG No. 1, 2 or 3), and the Coast Guard approval number. The tee required by §160.044-3(f) shall be permanently and legibly marked with the word “PRIME HERE”.
(b) [Reserved]