An Act amending the act of March 10, 1949 (P.L.30, No.14), known as the Public School Code of 1949, defining "qualified interest rate management agreement for interest on indebtedness" for purposes of provisions relating to reimbursements by Commonwealth and between school districts; further providing for approved reimbursable rental for certain approved leases, sinking fund charges on indebtedness and approved reimbursable payments, for payments on account of certain approved leases and sinking fund charges on indebtedness for certain school buildings, for approval of Department of Public Instruction and for payments to school districts because of density factor; and making an editorial change.