N.Y. Comp. Codes R. & Regs. tit. 14, § 635-4.1
(a) This Subpart shall apply to all providers which provide one or more of the services listed in paragraph (b)(2) of this section.
(3) Region for the purposes of this Subpart, region shall mean any one of the three geographic regions which OPWDD considers in the applicable facility-specific and/or service-specific reimbursement methodology(ies), which are:
(b) Definitions applicable to this Subpart.