House Substitute for SB 303 by Committee on Taxation - Decreasing the rate of ad valorem tax imposed by a school district, discontinuing certain sales tax exemptions, imposing sales tax on certain sales of lottery tickets, imposing an excise tax on all sports wagers as a rate of 2% of the amount wagered, creating the property tax relief fund and providing for transfers therefrom to the state school district finance fund and creating the sports wagering privilege tax refund fund.