Pennsylvania Statutes Title 53 P.S. Municipal and Quasi-Municipal Corporations § 65603. Monthly meetings;  quorum;  and voting

The board of supervisors shall meet for the transaction of business at least once each month at a time and place determined by the board of supervisors.  A quorum is two members of a three-member board of supervisors or three members of a five-member board of supervisors.  An affirmative vote of a majority of the entire board of supervisors at a public meeting is necessary in order to transact any business.  A member of the board shall not be disqualified from voting on any issue before the board solely because the member has previously expressed an opinion on the issue in either an official or unofficial capacity.