1. A power of the county, whether in terms vested in the county or in the board of supervisors shall, except as otherwise expressly provided, be exercised through a local law or resolution duly adopted by the board.
2. A majority of the whole number of the members of the board of supervisors shall constitute a quorum for the transaction of business, but a less number may adjourn.
3. Each local law or resolution shall have a title prefixed concisely stating the contents.
4. Whenever in this chapter or other general, special or local law, the board of supervisors is authorized or required to act, and no proportion of the voting strength for such action is otherwise prescribed, such action shall be taken by the affirmative vote of a majority of the total membership of the board. A roll call shall be taken and entered by the clerk in the minutes of its proceedings when required by law or upon request of any member of the board.
5. All resolutions shall become effective upon their adoption, or as otherwise provided by this chapter or other law or as specified in the resolution.
6. Subject to the restrictions provided in this chapter or other law, the board of supervisors shall have power to amend, repeal or supersede any local law or resolution theretofore adopted.
7. The board of supervisors shall have power to compel the attendance of members at regular and special meetings of the board and at committee meetings. In all cases of absence during any regular or special meeting of the board, or any committee meeting called pursuant to written notice, the board of supervisors may impose a penalty not exceeding fifty dollars for each non-attendance without sufficient excuse as the rules shall provide. Absence by reason of performance of official duty for the county, or absence occasioned by attendance at a meeting of the town board of a town, or absence occasioned by the performance of any other official duty, shall at all times be deemed a sufficient excuse.
8. Except as otherwise expressly provided, the board of supervisors of each county shall determine the rules of its own proceedings. Unless the rules of the board otherwise provide, no rule may be suspended except by the unanimous vote of the members present and voting at any regular or special meeting of the board.
9. The terms "whole number of the members of the board" and "whole number of its membership, " as used in this chapter, shall be construed to mean the total number which the board of supervisors would have were there no vacancies and were none of the supervisors disqualified from acting.
N.Y. County Law § 153