Idaho Code § 21-803

The Idaho transportation board shall, upon receipt of a petition signed by not less than twenty-five (25) electors from each legislative district within an air region as described in section 21-802, Idaho Code, appoint an interim board of trustees to consist of one (1) appointee from each legislative district in the region. Members of such boards shall serve without pay until such time as the regional airport authority is established and tax levying authority granted, after which such boards shall be reimbursed for actual and necessary expenses incurred in the performance of official duties. At the first meeting of each such board, a chairman shall be selected from the membership of the respective board. Such interim boards shall serve in such capacity until their successors are elected and qualified as provided in section 21-806, Idaho Code, and such boards shall exercise all powers and duties granted to the permanent board of trustees under section 21-807, Idaho Code.