Recreational vessels with a model year between 1953 and 2017 must meet the following requirements:
(a) Previously installed extinguishers with extinguishing capacities that are less than what is required in table 1 to § 175.320(a)(1) or table 2 to § 175.320(b)(1) need not be replaced but must be maintained in good condition.
(b) All extinguishers installed after August 22, 2016, must meet the applicable requirements in §§ 175.305 through 175.320.