N.Y. Comp. Codes R. & Regs. tit. 14, § 578.14
(a) To be considered as allowable in determining the rate of payment, costs must be properly chargeable to necessary resident care rendered in accordance with the requirements of Part 584 of this Title and any applicable codes, rules, regulations and laws pursuant to title XIX of the Social Security Act. The allowability of costs shall be determined in accordance with the following:
(m) Allowable operating costs shall not include the following costs incurred by a residential treatment facility: