N.Y. Comp. Codes R. & Regs. tit. 14, § 816.8
(a) Unless otherwise authorized by the office medically supervised outpatient services may only be delivered by an OASAS certified provider of residential, inpatient and outpatient services in order to assure appropriate continuation in treatment.
(1) All providers of outpatient medically supervised services must, at a minimum, provide the following services in additional to those required pursuant to section 816.5 of this Part:
(ii) the provider of services must provide or make available a 24 hour telephone crisis line to help facilitate the provision of this information.
(c) Staffing.
(b) Required services.