Section 175.21 - Condition; size and fit; approval markingNo 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.CGD 81-023, 55 FR 32034, Aug. 6, 1990, as amended by CGD93-055, 61 FR 13926, Mar. 28, 1996; USCG-2013-0263, 79 FR 56499 , Sept. 22, 2014