N.Y. Comp. Codes R. & Regs. tit. 20, § 2390.1
(3) The provisions of this section apply to all powers of attorney filed with the Division of Taxation of the Department of Taxation and Finance.
(b)
(2) A power of attorney will not be required when an individual merely furnishes information to the division or prepares a report or return as a preparer for the taxpayer.
(c)
(3) The division may, in its discretion, accept a copy of a power of attorney. The division may also require proof of the existence and validity of the original power of attorney.
(d)
(1) In addition to any other information that may be required by the division, a power of attorney should contain the following information:
(a)