46 C.F.R. § 160.050-6 Marking.
Title 46 - Shipping
(a) Each ring buoy must have the following information in waterproof lettering:
Type IV Personal Flotation Device. Inspected and tested in accordance with U.S. Coast Guard regulations. (Name of buoyant material) buoyant material provides a minimum buoyant force of (32 lb. or 16 Approved for use on recreational boats only as a throwable device. U.S. Coast Guard Approval No. 160.050/(assigned manufacturer's No.)/(Revision No.); (Model No.). (Name and address of manufacturer or distributor). (Size). USCG (Marine Inspection Office identification letters). (Lot No.). (b) A method of marking that is different from the requirements of paragraph (a) of this section may be given consideration by the Coast Guard. [CGD 72–163R, 38 FR 8120, Mar. 28, 1973, as amended by CGD 75–186, 41 FR 10437, Mar. 11, 1976; CGD 75–008, 43 FR 9771, Mar. 9, 1978; 43 FR 10913, Mar. 16, 1978; CGD 92–045, 58 FR 41608, Aug. 4, 1993; CGD 95–028, 62 FR 51214, Sept. 30, 1997]
Title 46: Shipping
PART 160—LIFESAVING EQUIPMENT
Subpart 160.050—Specification for a Buoy, Life Ring, Unicellular Plastic
§ 160.050-6 Marking.

