N.Y. Comp. Codes R. & Regs. tit. 6, § 197.3
(a) A license to guide, valid for five years will be issued by the department to a person who:
(7) submits satisfactory proof of possessing current certification in the following:
(e) Applicants for a Tier I license to guide for rock and ice climbing must also provide the department with acceptable documentation of the applicants climbing experience for the three years immediately preceding the date of application. Such experience must include:
(f) Applicants for a Tier II license to guide for rock and ice climbing must also provide the department with acceptable documentation of the applicants climbing experience. Such experience must include: