Wyo. Stat. Ann. § 41-6-105

The commissioners of any district belonging to any association formed hereunder, may at any time submit to the qualified electors of their district the question as to whether or not the district shall withdraw from such association. Such election shall be held as above provided, and if in any case, the vote shall be in favor of withdrawal, the result thereof shall be duly certified to the proper court, and notice thereof served upon the other districts involved. Thereupon such withdrawal will become operative on the first day of the second December following such election, and thereafter the provisions of this act shall be applicable to such district. Division 2. Board of District Managers 41-6-120. Number of members; qualifications; succession; quorum; voting procedures. The board of district managers shall be composed of as many members as there are districts to be represented, and a majority of its members shall constitute a quorum. The commissioner in each district who has longest served the district as such commissioner, shall be the member of the board of district managers from such district. In case of death, resignation, disability or absence of any district manager, the commissioner from his district who is next in seniority of service shall act as district manager in his stead. Where there is no seniority in service among the commissioners of any district, they themselves shall determine the order in which they shall successively serve as members of the board of district managers. If the commissioners of all of the associated districts shall at any time so order, the board of district managers may thereafter be composed of two (2) commissioners from each district, but in such case the vote upon any question before the board shall be by districts, each district being entitled to cast one (1) vote by its representatives or representative present.