§ 175.21 — Condition; Size And Fit; Approval Marking

No person may use a recreational boat unless each PFD required by § 175.15 is—

(a) In serviceable condition as provided in § 175.23;

(b) Of an appropriate size and fit for the intended wearer, as marked on the approval label; and

(c) Legibly marked with its approval number, as specified in 46 CFR part 160.