Code of Alabama
Article 1 - Annexation of Territory by Municipalities Generally.
Section 11-42-7 - Legislative Reapportionment Office to Be Notified of Annexation or Deannexation.

Any municipality which annexes property into the municipality or deannexes property from the municipality shall notify the Legislative Reapportionment Office of such action within seven days of the final action. The municipality shall provide all census blocks involved in the annexation or deannexation to the Legislative Reapportionment Office so that the office may maintain accurate information concerning the corporate limits of each municipality located within the state. A municipality's failure to notify the Legislative Reapportionment Office as provided herein shall not be grounds to challenge or invalidate the annexation or deannexation.