MO HB2485

Prohibits Missouri's General Revenue Fund from being spent on construction, maintenance, promotion, or operation of professional sports stadiums (auto racing, baseball, basketball, football, hockey, or soccer facilities)

Bars political subdivisions from using public funds for professional sports facilities unless voters specifically authorize the funding or bond issuance through popular vote with ballot language describing the specific project

Contains a contingent effective date requiring 26 of 32 specified states/districts (including major sports markets like California, New York, Texas, Florida, and Illinois) to adopt substantially similar measures before the restrictions take effect

Declares it against public policy for the state or political subdivisions to provide subsidies, tax abatements, tax credits, tax deductions, or tax exemptions incentivizing professional sports stadiums

Grants any Missouri citizen standing to bring court action challenging violations, with courts authorized to enjoin spending and order restitution; existing contracts and projects approved prior to the effective date are protected