71 Pa. Stat. § 1709.504
The terms of office for appointed committee members shall be two years and until their successors shall have been appointed and qualified, but no committee member shall serve more than six months beyond the expiration of his or her term unless reappointed. In no event shall a committee member serve more than two terms. Terms of office of members shall expire on the third Tuesday of January of each odd-numbered year. In the case of a vacancy in a position filled by appointment of the Governor, the Governor shall make an appointment for the unexpired portion of the term. In the case of a vacancy in a position filled by appointment of a legislative leader, that legislative leader shall make an appointment for the unexpired portion of the term.
71 P.S. § 1709.504