No purchasing agency may award any contract for the construction of any public improvement unless the purchasing agency has verified with the Department of Revenue that the contractor has a contractor's excise tax license pursuant to chapter 10-46A or 10-46B . Source: SL 2010, ch 31 , § 56; SL 2011, ch 1 (Ex. Ord. 11-1 ), § 35, eff. Apr. 12, 2011.