Wyoming corporate bylaws are a set of rules that are drafted by the board of directors or appointed officer of a corporation to govern the entity’s internal affairs. Although corporations are required to adopt bylaws in Wyoming, the document isn’t filed with the Secretary of State and may include any provisions that don’t contravene the law. Furthermore, state law permits that if a corporation doesn’t adopt bylaws during the entity’s formation, annual meetings will be held within three (3) months from the closing date of the corporation’s fiscal year. Bylaws may be adopted at any director or shareholder meeting.