N.Y. Pub. Hous. Law § 222
For the purposes of the application of the lien law, the general corporation law, and except as in this chapter otherwise provided, for the purposes of the application of any general, special or local law imposing a tax, an authority shall be deemed a municipal corporation. The term "public corporation" used in the lien law shall be deemed to include an authority. The term "public improvement" used in the lien law shall be deemed to include an improvement upon real property belonging to an authority and the term "public contract" in such law shall be deemed to include contracts made by the authority; the secretary of the authority shall, for the purposes of the lien law be deemed to be the financial officer of the authority and the officer of the department, bureau, subdivision or commission having charge of the construction of an improvement and being charged with the custody and disbursement of the funds applicable to the public contract or public improvement under, upon or for which goods or materials are furnished or work was done.
N.Y. Pub. Hous. Law § 222