N.Y. Comp. Codes R. & Regs. tit. 18, § 600.3
(3) Other costs. Any costs or adjustments specifically authorized by law will be subject to reimbursement or adjustment as directed by the department, in accordance with applicable provisions of State and Federal law and regulations.
(b) Costs not subject to reimbursement.
Except as otherwise provided in this Subchapter, the following provisions concerning the claiming of reimbursement will apply:
(10) Costs subject to reimbursement must not be reported in any manner which is contrary to department direction.
(c) Limitations and conditions upon reimbursement.
(4) If the requirements for Federal participation or reimbursement from entities, other than the department, are not met by a social services district, the claiming requirements for purposes of State participation in reimbursing the claimed costs have not been fulfilled, unless:
(a) Costs subject to reimbursement.