Modifies provisions related to county sales tax increases

HB 66 requires Missouri counties to seek voter approval via ballot measure before imposing new countywide sales taxes. It limits new tax rates to 1% (increasing to 1.5% after August 2025) and restricts funding to specific purposes like law enforcement (for rates above 1%), prohibiting use for stadiums, most zoological facilities, or general operations. The bill also mandates how tax revenue must be distributed - such as 3/8 to counties and 5/8 to cities in large first-class counties - and requires counties to notify voters if they repeal such taxes. This directly affects all 114 Missouri counties and their residents who vote on tax proposals.