N.Y. Educ. Law § 3027
Notwithstanding any provision of law to the contrary, no board of education in any city, union free, common or central school district in this state shall hereafter prohibit, prevent, disqualify or discriminate against any person who is physically and mentally qualified from competing, participating, or registering for an examination for or from qualifying for, a position as teacher, or be penalized in a final rating by reason of his or her age. Any such rule, requirement, resolution, regulation or penalization of such board shall be void.
Nothing herein contained, however, shall prevent such board from adopting reasonable minimum or maximum age requirements for positions which require extraordinary physical effort, except where age limits for such positions are already prescribed by law.
N.Y. Educ. Law § 3027