A .25% tax is imposed on all retail sales and services in Tupelo which are subject to the general rate of state sales tax. This levy is in addition to all other taxes now imposed. Effective February 1, 1989, and shall stand repealed upon certification to the Department of Revenue by the trustee of the special fund that certain criteria have been met as required, and the tax shall stand repealed effective on the first day of the month immediately following such certification.