Notwithstanding any other provision of law to the contrary, the governing body of any political subdivision that contains no more than one hundred forty (140) registered voters at the last general election may apply to the appropriate board of county commissioners for a determination that the election of the members of the political subdivision’s governing body may be held at large instead of by district zones or subdistricts. The board of county commissioners shall make the determination whether to permit the election of the political subdivision’s governing body to be elected at large and the county clerk shall provide notice of the board’s decision to the affected electors at least ninety (90) days before the next general election. If the board of county commissioners approves the request for an at-large election, the approval shall apply to future elections until revoked by the board of county commissioners.