N.Y. Real Prop. Tax Law § 312
The commissioner shall establish for counties, cities and towns to which this title applies minimum qualification standards (a) for appointments to the positions of (i) assessor, except assessors of local governments not subject to the provisions of section three hundred ten of this title, and (ii) other administrative positions having professional appraisal duties relating to the assessment of real property for purposes of taxation, and (b) for applicants for certification as candidates eligible for the position of assessor, other than assessors or assessors-elect, pursuant to subdivision ten of section three hundred ten of this title. Such standards shall be set forth in rules and regulations promulgated by the commissioner.
N.Y. Real Prop. Tax. Law § 312