Mo. Rev. Stat. § 190.044
2. Upon receipt of such petition, the county clerk shall determine the area taxed by two such entities and place the question before the voters of such area at the next state or municipal election. The petition shall request that the following question be submitted to the voters residing within the geographic limits of the area:
The .................... (description of area) is currently paying a tax to provide ambulance service to the ................... (name of entity created first) and the .................... (name of entity created second).
As a result, choose only one of the following districts to provide ambulance service and taxation:................... (name of entity created first)................... (name of entity created second).3. The entity receiving the most votes shall be declared as the single taxing entity for the area in question. The taxpayers within the area shall thereafter only pay one tax to the single taxing entity following a three-year period, over which the tax rate levied and collected shall be decreased by one-third each year until such tax is no longer levied or collected by the entity not chosen to provide service.
(L. 1998 S.B. 743, A.L. 1999 S.B. 436)