Idaho Code § 42-1504
Any person, association, municipality, county, state or federal agency may, in writing, request that the board consider the appropriation of a minimum stream flow of the unappropriated waters of any stream. Said request shall be in writing and provide the same information required in the form provided for by section 42-1503, Idaho Code. The board shall consider said request within six (6) months after it is filed and may proceed to reject or accept the proposal. There shall be no right of review of any board decision rejecting a request under this section. If the board decides that the request has merit, the board shall proceed as provided in this act. The board may hold hearings in reaching its decision and shall notify the requesting party of its decision.
Idaho Code § 42-1504