Modifies provisions relating to sales taxes for park purposes

SB 1145 reallocates Missouri county sales tax revenue to fund parks and recreation. For most counties, 50% of tax revenue stays in a district park fund for operations, while 50% returns to the county for park projects (with 40% reserved for municipal grants to cities). In metropolitan areas, 60% of revenue goes to a dedicated park fund (initially 50% for Gateway Arch grounds, later shifting to 20%), and 40% returns to counties for municipal park grants. The bill also requires counties to seek voter approval to extend funding for the Gateway Arch after 20 years.