N.Y. Comp. Codes R. & Regs. tit. 21, § 6000.2
(b) Records access officers are responsible for insuring appropriate agency response to public requests for records. The designation of records access officers shall not be construed to prohibit officials who have in the past been authorized to make records or information available to the public from continuing to do so. Records access officers shall insure that personnel:
(3) upon locating the records, take one of the following actions:
(4) upon request for copies of records:
(6) upon failure to locate records, certify that: