46 C.F.R. § 160.052-2 Size and model.
Title 46 - Shipping
(a) A standard buoyant vest is manufactured in accordance with a plan specified in §160.052–1(b) and is a: (1) Model AP, adult (for persons over 90 pounds); (2) Model CPM, child, medium (for persons weighing from 50 to 90 pounds); or (3) Model CPS, child, small (for persons weighing less than 50 pounds). (b) A nonstandard buoyant vest is: (1) Manufactured in accordance with the manufacturer's approved plan; (2) Equivalent in performance to the standard buoyant vest; and (3) Assigned a model designation by the manufacturer for the following sizes: (i) Adult (for persons weighing over 90 pounds); (ii) Child, medium (for persons weighing from 50 to 90 pounds); (iii) Child, small (for persons weighing less than 50 pounds). [CGD 72–163R, 38 FR 8120, Mar. 28, 1973]
Title 46: Shipping
PART 160—LIFESAVING EQUIPMENT
Subpart 160.052—Specification for a Buoyant Vest, Unicellular Plastic Foam, Adult and Child
§ 160.052-2 Size and model.

