Where there shall be two (2) or more persons holding certificates of convenience and necessity for similar operation in the same municipality, such operation may be carried on by such persons within their respective certificated areas and such persons shall be exempt from further application to the commission for extension of or additions to their facilities within their respective certificated areas of said municipality, including any extensions of the corporate limits thereof.
Municipally operated utilities shall not be subject to regulation under this article.
Miss. Code § 77-3-15