N.Y. Comp. Codes R. & Regs. tit. 8, § 60.3 – Experience.

(a) For issuance of a license to practice medicine, all applicants who make application for licensure after July 1, 1985 shall have completed at least one year of postgraduate hospital training acceptable to the department, except as otherwise provided in subdivision (b) of this section.
(b) For issuance of a license to practice medicine, graduates of medical education programs neither registered by the department nor accredited by an accrediting organization acceptable to the department, except those applicants seeking licensure pursuant to section 6528 of the Education Law, shall meet the following requirements:
1. (1) those individuals who complete medical education and make application for licensure to the department prior to July 1, 1981, shall have completed two years of postgraduate hospital training satisfactory to the department, provided that graduates of schools designated by the department shall be exempted from the second year of required hospital training; and
2. (2) those individuals who make application for licensure on or after July 1, 1981, shall have completed at least three years of postgraduate training approved by the Accreditation Council on Graduate Medical Education or the American Osteopathic Association or their predecessors or successors.
(c) A year of postgraduate training shall mean a period of not less than the equivalent of 11 calendar months of full-time experience after passing an acceptable proficiency examination. A graduate entering the licensing examination pursuant to this section may sit for the examination following completion of undergraduate medical education but prior entry into the required postgraduate training.
(d) Fellowships in the United States or Canada which are clinical in nature or postgraduate hospital training obtained in a country in which such training is regulated by an organization designated as responsible for quality assurance that has been approved by the Board of Regents, may be accepted by the Committee on the Professions toward meeting the postgraduate training requirement. Fellowships determined to be other than clinical or postgraduate hospital training obtained outside the United States or Canada may be accepted on a pro rata basis at the discretion of the Committee on the Professions, based on the content of the experience as compared to the experience obtained in the postgraduate training prescribed in subdivision (b)(2) of this section.
(e) A diplomate certificate satisfactory to the department and earned by examination may be accepted for one year of the required postgraduate hospital training.