N.Y. Relig. Corp. Law § 225-G
An incorporated church may, at its annual meeting where trustees are elected, by vote change the number of its trustees to three, six or nine by adding more trustees, one-third of which shall be elected for three years, one-third for two years, and one-third for one year; or by voting to discontinue the offices of certain specified trustees as they expire, one-third of said offices to be discontinued each year, until the number left is the number decided upon. Such changes in the board of trustees shall always provide that at least two-thirds of the trustees shall be members in full connection of the free Methodist church in good and regular standing. No such change shall affect the terms of the trustees then in office, but each shall hold office until his full term has expired, unless his office is terminated according to section two hundred and twenty-five-h of this article.
N.Y. Relig. Corp. Law § 225-G