Within 60 days of the effective date of this chapter, the Chairperson of the Lamoille County Planning Commission shall designate a time and place for the organizational meeting of the initial Board. Annually thereafter, on the first Wednesday in April, the Board shall hold its organizational meeting at a time and place designated by the Board Chairperson. At the organization meeting, the Board shall elect from among its membership a Chairperson and a Vice Chairperson, each of whom shall hold office for one year and until a successor is duly elected and qualified. For this election each supervisor present shall cast one vote, except that no supervisor shall be elected Chairperson for more than three consecutive terms unless supervisors representing at least two-thirds of all votes entitled to be cast on behalf of all members and comprising at least two-thirds of all possible supervisors (including vacancies) shall so vote. The Chairperson and Vice Chairperson who are elected at the organizational meeting of the Initial Board shall hold office until the second Board elects their successors.