N.Y. Comp. Codes R. & Regs. tit. 14, § 635-4.5
(b) Such financial records shall include, but not be limited to:
(c) The financial records shall include separate accounts for each type of expense and revenue included in the budget or cost report. The provider may establish subaccount and control accounts as are necessary for meeting OPWDD’s requirements for fiscal reporting and effective financial management.
(d) Record retention.
Providers must maintain all cost reports, budget reports, data and other reports submitted to OPWDD under this Subpart. Providers must also maintain all underlying records which formed the basis for or which support such reports and data submitted to OPWDD. The period of retention shall be as follows: