No rate shall be increased and no duration shall be extended without the approval of the voters, by a simple majority of the votes cast.
An election to approve or disapprove the adoption of a vehicle registration fee increase may be called for by the adoption of an ordinance by majority vote of the board of county commissioners or shall be called upon a request in writing from the governing board of each of the local highway jurisdictions in the county or ten per cent (10%) or more of the number of qualified voters voting in the last general election in each county commissioner subdistrict.
Idaho Code § 40-827