72 Pa. Stat. § 301
The Treasury Department shall deposit all moneys of the Commonwealth received by it, including moneys not belonging to the Commonwealth but of which the Treasury Department or the State Treasurer is custodian, in State depositories approved by the Board of Finance and Revenue. The Treasury Department shall not be required to deposit or to keep on deposit moneys of the Commonwealth segregated by funds in State depositories.
The Treasury Department shall not, at any time have in all active depositories more than an aggregate of such total sum as the Board of Finance and Revenue shall, by resolution, have prescribed, and shall not deposit in any one inactive depository an amount in excess of twenty-five per centum of its paid-in capital and surplus, nor in excess of five hundred thousand dollars: Provided, however, That in the case of any particular depository, these limitations may be waived by the Board of Finance and Revenue, so as to permit the State Treasurer to deposit State moneys, not in excess of one million dollars, in any bank, banking institution, or trust company designated as an inactive depository.
All departments, boards or commissions, having in their possession any moneys belonging to the Commonwealth, shall deposit them in State depositories approved by the Board of Finance and Revenue in a manner and with such frequency as shall be prescribed by the State Treasurer. In all such cases the depositing department, board or commission shall forthwith, upon opening the account, notify the Department of the Auditor General and the Treasury Department of the name of the depository and the nature of the funds to be deposited in the account.
72 P.S. § 301