An application for program aid shall be for one of the following purposes:

1. (1) To provide staffing for the ongoing operation of a COG.
2. (2) To finance the operation of a functional program designed to solve areawide problems, provide areawide services or make for more efficient operation of the area’s governmental units.
3. (3) To assist in financing studies to determine the feasibility and desirability of acting in concert in the performance of a local governmental function.