Section 343 - County or part-county boards of health; organization; appointment1. The board of health of a county or part-county health district shall consist of seven members, one of whom shall be a member of the board of supervisors, selected by the board of supervisors, and at least three of whom shall be physicians licensed to practice in the state of New York, and in addition thereto, each city which becomes a part of the county or part-county health district shall be entitled to one additional representative member on the board of health.2. The members of the board of health of a county or part-county health district shall be residents of the health district.3.(a) The members of the board of health shall be appointed by the board of supervisors.(b) The county medical society of the county in which a county or part-county health district is established may submit to the board of supervisors a list of physicians from which the board of supervisors may choose the medical members of the board of health.(c) The additional city representative members of the board of health shall each be appointed by the board of supervisors from a list of three persons submitted by the mayor or other administrative head of such city. Such city representative members so appointed shall have all the powers and duties conferred upon other members of said board.N.Y. Pub. Health Law § 343