Pennsylvania Statutes Title 25 P.S. Elections & Electoral Districts § 2641. County boards of elections;  membership

(a) There shall be a county board of elections in and for each county of this Commonwealth, which shall have jurisdiction over the conduct of primaries and elections in such county, in accordance with the provisions of this act.

(b) In each county of the Commonwealth, the county board of elections shall consist of the county commissioners of such county ex officio, or any officials or board who are performing or may perform the duties of the county commissioners, who shall serve without additional compensation as such.  Except in counties of the first class, in counties which have adopted home rule charters or optional plans the board of elections shall consist of the members of the county body which performs legislative functions unless the county charter or optional plan provides for the appointment of the board of elections.  In either case, there shall be minority representation on the board.  The county body which performs legislative functions shall in the case where the board does not contain minority representation appoint such representation from a list submitted by the county chairman of the minority party.

(c) Whenever a member of the board of county commissioners is a candidate for nomination or election to any public office, the President Judge of the Court of Common Pleas shall appoint a judge or an elector of the county to serve in his stead.  Whenever there appears on the ballot a question relating to the adoption of a Home Rule Charter for the county or amendments to an existing county Home Rule Charter, the President Judge of the Court of Common Pleas shall appoint judges or electors of the county to serve in the stead of the county commissioners.  Appointees who are not currently elected office holders shall receive compensation for such service as determined by the salary board plus mileage as specified by the county for expenses incurred when performing election board business.