A Supplement to the act of September 25, 1975 (P. L. 296, No. 95), entitled "An act authorizing the indebtedness, with the approval of the electors, of ten million dollars for loans to volunteer fire companies, volunteer ambulance services and volunteer rescue squads for the purpose of establishing or modernizing facilities to house fire fighting apparatus equipment, ambulances, and rescue vehicles, and for purchasing new fire fighting apparatus equipment, ambulances, and rescue vehicles, protective and communications equipment, and any other accessory equipment necessary for the proper performance of such organizations' duties," authorizing additional indebtedness with the approval of the electors.