N.Y. Comp. Codes R. & Regs. tit. 14, § 70.1
(a) This Part is intended to establish an all-inclusive set of categories, named classes, to which all providers of services to the mentally disabled subject to the requirement to obtain an operating certificate from the Commissioner of Mental Hygiene will be assigned, for purposes of determining compliance with the most appropriate standards of operation and construction pursuant to the issuing of an operating certificate.
(b) The statutory requirement that an operating certificate be obtained by certain providers of services to the mentally disabled is applicable on the basis of three factors: characteristics of the persons served, characteristics of the services provided, and the auspices of the provider of services.