N.Y. Real Prop. Tax Law § 1804

§ 1804. Commissioner certifications. For the assessment roll completed\nand filed in the year nineteen hundred eighty-nine and for each roll\nthereafter, the commissioner shall certify to the chief executive\nofficer and legislative body of each special assessing unit, the class\nequalization rate for each class in such special assessing unit and each\nportion thereof.\n