N.Y. Comp. Codes R. & Regs. tit. 8, § 74.3
(a) An applicant for licensure as a licensed clinical social worker shall meet the experience requirement for licensure by submitting documentation of three years of full-time supervised clinical social work experience in diagnosis, psychotherapy, and assessment-based treatment plans, or the part-time equivalent, or a combination of full-time and part-time supervised clinical social work experience in diagnosis, psychotherapy, and assessment-based treatment plans, completed over a period not to exceed six years, in accordance with the requirements of section 74.6 of this Part. For purposes of this subdivision, the full-time experience shall consist of not less than 2,000 client contact hours over a continuous period of at least 36 months and not to exceed six years.