The board may set aside the following money from the proceeds from the sale of bonds:

1. (1) money necessary to pay interest on the bonds for not more than two years; and
2. (2) money that the board estimates to be necessary to pay the authority's operating expenses for its first year of operation.

Acts 1987, 70th Leg., ch. 149, Sec. 1, eff. Sept. 1, 1987.