N.Y. Comp. Codes R. & Regs. tit. 8, § 60.4
(a) An applicant who is a graduate of a medical school may fulfill the examination requirements for licensure by submitting evidence of having achieved grades acceptable to the State Board for Medicine on:
(9) Component II of the Federation Licensing Examination (FLEX); and
(b) A graduate of a registered or accredited college of osteopathic medicine who has obtained grades on Parts I and II of the examination of the National Board of Osteopathic Medical Examiners, Inc. which meet New York State standards for licensure but who, after completing nonosteopathic postgraduate training, is refused admission to Part III of that examination by the National Board of Osteopathic Medical Examiners, Inc., may satisfy the licensing examination requirement in this State by obtaining grades satisfactory to the State Board for Medicine on the clinical competence portion of a Federation Licensing Examination or on Step 3 of the United States Medical Licensing Examination.
(c) Passing score.