(a) Approval of estimated expenditures.--Estimates of amounts to be expended under this subchapter, from time to time, by the commission shall be submitted to the Governor for his approval as in the case of other appropriations made to Commonwealth agencies.
(b) Expenditures not to exceed approved estimates.--The State Treasurer shall not honor any requisition for the expenditure of any moneys by the commission in excess of the estimates approved by the Governor or in excess of the amount available for the purposes for which the requisition was made.