Wyo. Stat. Ann. § 15-7-401

Any city or town which owns and operates a municipal waterworks, a sanitary sewer system, a sewage disposal plant or an electric utility distribution system may establish a board of commissioners to be known as the board of public utilities. The board of public utilities shall manage, operate, maintain and control such plants and make all rules and regulations necessary for their safe, economical and efficient operation and management. The board may also improve, extend or enlarge the plants as provided in this article.