Sec. 321.2091.  TRANSITION EXEMPTION:  ADDITIONAL MUNICIPAL SALES AND USE TAX.  (a)  The receipts from the sale, use, or rental of and the storage, use, or consumption of taxable items in this state are exempt from the adoption or increase of the additional municipal sales and use tax if the items are used:
(1)  for the performance of a written contract entered into before the date the adoption or increase of the additional tax takes effect in the municipality, if the contract is not subject to change or modification by reason of the tax;  or
(2)  pursuant to an obligation of a bid or bids submitted prior to the date the adoption or increase of the additional tax takes effect in the municipality, if the bid or bids may not be withdrawn, modified, or changed by reason of the tax.
(b)  The exemptions provided by this section have no effect after three years from the date the adoption or increase of the additional tax takes effect in the municipality.
Added by Acts 1989, 71st Leg., ch. 2, Sec. 14.14(c), eff. Aug. 28, 1989.  Amended by Acts 1991, 72nd Leg., ch. 184, Sec. 5, eff. May 24, 1991.