(b) The chairperson of the planning board may designate an alternate member to substitute for a member when such member is unable to participate because of a conflict of interest on an application or matter before the board. When so designated, the alternate member shall possess all the powers and responsibilities of such member of the board. Such designation shall be entered into the minutes of the initial planning board meeting at which the substitution is made.
(c) All provisions of this section relating to planning board member training and continuing education, attendance, conflict of interest, compensation, eligibility, vacancy in office, removal, compatibility of office and service on other boards, shall also apply to alternate members. 17. Voting requirements. Every motion or resolution of a planning board shall require for its adoption the affirmative vote of a majority of all the members of the planning board. Where an action is the subject of a referral to the county planning agency or regional planning council the voting provisions of sections two hundred thirty-nine-m and two hundred thirty-nine-n of the general municipal law shall apply.