Ala. Code § 11-42-40: Applicability of Provisions of Article; Provisions of Article Not Exclusive.

Any city having 25,000 inhabitants or more, as shown by the last federal census, from time to time, may extend its corporate limits in the manner and with the rights, powers, and privileges as set forth in this article, but the provisions of this article shall not preclude any city from extending its corporate limits in any other way or manner that may be authorized by law.