The term “school district” as used in this Article shall be deemed to include any special school taxing district, local tax district, special charter district, city administrative unit or other political subdivision of a county by which or on behalf of which bonds have been issued for erecting and equipping school buildings, or for refunding the same, and such bonds are outstanding. (1955, c. 1372, art. 13, s. 1; 1981, c. 423, s. 1.)