While there is only one instance where it is required by law that a corporation adopts corporate bylaws, virtually all corporations adopt them. They are essentially the game plan of the corporation. The exception to the general rule that bylaws are not a legal requirement is when the number of directors is not stated in the articles of incorporation. If the number of directors are not specified in the articles of incorporation then bylaws must be adopted specifying that number of directors for the corporation.
Bylaws serve several useful functions. They provide the rules and regulations for corporate governance as well as the governance of shareholders, officers and directors of the corporation. Bylaws also restate a lot of the state statutory rules, procedures and standards relating to corporate governance and may alter those statutory standards which are variable.