Wyo. Stat. § 17-16-1020: Amendment by board of directors or shareholders.

(a) A corporation's shareholders may amend or repeal the corporation's bylaws.

(b) A corporation's board of directors may amend or repeal the corporation's bylaws unless:

(i) The articles of incorporation, W.S. 17-16-1021 or if applicable W.S. 17-16-1022 reserve this power exclusively to the shareholders in whole or part; or

(ii) The shareholders in amending, repealing or adopting a bylaw provide expressly that the board of directors may not amend, repeal or reinstate that bylaw.