Pa. Const. art. IV, § 4
A Lieutenant Governor shall be chosen jointly with the Governor by the casting by each voter of a single vote applicable to both offices, for the same term, and subject to the same provisions as the Governor; he shall be President of the Senate. As such, he may vote in case of a tie on any question except the final passage of a bill or joint resolution, the adoption of a conference report or the concurrence in amendments made by the House of Representatives.
(May 16, 1967, P.L.1044, J.R.4)