N.Y. Education Law § 702: Requisites for change

§ 702. Requisites for change. 1. When a text-book shall have been

designated for use in a school district or city as provided in

subdivision one of section seven hundred one, it shall not be lawful to

supersede such text-book by any other book within a period of five years

from the time of such designation, except upon a three-fourths vote of

the board of education, trustees or of such body or officer as performs

the function of such board.