N.Y. Comp. Codes R. & Regs. tit. 9 § 6024.3
Special instructor certification may be granted at the discretion of the commissioner, upon written application. The requirement of satisfactory completion of an approved firearms instructor course, as set forth in section 6024.2(e) of this Part may be waived in instances where the applicant can demonstrate technical expertise and document satisfactory completion of a firearms instructor course from an institute that has national police recognition and has been approved by the commissioner. Approval may be granted for these courses upon written application by said institute and, when required by the commissioner, an onsite evaluation by Division of Criminal Justice Services staff of such training. Application must include copies of the course curriculum and related testing procedures used in said course. Upon approval of such course by the commissioner, an applicant must be evaluated in a classroom setting and on a firearms range and must be found to possess and exhibit acceptable instructional skills and technical expertise. Evaluations must be conducted by the Division of Criminal Justice Services or its designee.
N.Y. Comp. Codes R. & Regs. Tit. 9 § 6024.3