Wyo. Stat. § 21-13-711: Price of bonds; bids.

The bonds may be sold at, above or below the par value thereof as determined by the board of trustees, but the bonds shall be sold at a price such that the net effective interest rate for the issue of bonds does not exceed the maximum net effective interest rate approved by the voters in the election authorizing the bonds. The board is authorized to reject any and all bids and to waive any informality or irregularity in any bid.