N.Y. Comp. Codes R. & Regs. tit. 14, § 595.11
(b) Such plan shall be developed by the staff of the program, the resident and any collateral identified for participation in planning, as appropriate and desired by the resident. The service plan shall be reviewed and signed by a qualified mental health staff person. The individualized written service plan shall be a mutually agreed upon plan which, at a minimum, identifies the following:
(d) The individualized written service plan shall be reviewed at least once every three months, with the initial review occurring three months from the date of admission. The review shall include participation of staff involved in the provision of services to the resident, the resident, and/or if appropriate and with the approval of the resident, the resident's family or other collateral. Such review shall include the following:
(e) As a part of the service planning process for each resident, the provider shall ensure that: