72 Pa. Stat. § 3623
All moneys in the general sinking fund of the Commonwealth, in excess of the sum of one hundred fifty-eight thousand three hundred twenty dollars and twenty-six cents ($158,320.26), which is necessary for the payment of bonds and obligations of the Commonwealth, which have never been presented for redemption, are hereby appropriated from the sinking fund for payment into the State School Fund and credited by the State Treasurer as income. All moneys which are now by law payable in the general sinking fund of the Commonwealth shall, after the passage of this act, be payable into the State School Fund and credited by the State Treasurer as income. All interest accumulating on the moneys remaining in the general sinking fund shall, after the passage of this act, be payable into the State School Fund and credited by the State Treasurer as income. The Auditor General and State Treasurer shall, after the passage of this act, transfer all such excess moneys now held in the sinking fund into the State School Fund and credited by the State Treasurer as income; and from time to time pay the interest accumulating on the moneys remaining in the general sinking fund into the State School Fund and credited by the State Treasurer as income.
72 P.S. § 3623