Section 160.052-2 - Size and model(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