N.Y. Comp. Codes R. & Regs. tit. 9, § 451.5
(a) A person is exempt from carrying a boating safety certificate or taking the course if they hold at least one of the following valid certifications, licenses, memberships or status. A copy of that certification, license, membership or status information must be carried by the operator and produced upon request of a law enforcement or judicial officer. A law enforcement or judicial officer may require the operator to produce the original certification, license, membership or status document within a reasonable time period:
(7) non-resident or New York resident who has received comparable safe boating instruction and is holding a valid comparable certificate issued by the state or country where they presently reside or recently resided;