46 C.F.R. § 160.005-2 Size and model.
Title 46 - Shipping
Each life preserver specified in this subpart is a: (a) Model 52, adult, 46 ounces fibrous glass; or (b) Model 56, child, 30 ounces fibrous glass. [CGD 72–163R, 38 FR 8118, Mar. 28, 1973]
Title 46: Shipping
PART 160—LIFESAVING EQUIPMENT
Subpart 160.005—Life Preservers, Fibrous Glass, Adult and Child (Jacket Type), Models 52 and 56
§ 160.005-2 Size and model.

