Before any territory may be annexed, the governing body of the municipality must adopt a plan of services establishing, at a minimum, the services to be delivered and the projected timing of the services. Upon adoption of the plan of services, the municipality must forward a copy of the plan of services to the county mayor in whose county the territory being annexed is located. T.C.A. § 6-51-102. The municipality must also forward a copy of the annexation resolution to the county mayor. T.C.A. § 6-51-104. The county mayor must also be notified by the annexing municipality of the final decision in any quo warranto proceeding contesting a proposed annexation or the outcome of any referendum regarding annexation.  T.C.A. §§ 6-51-103, 6-51-105. The county mayor is required to notify the appropriate departments and offices of the county regarding information received from the municipality pertaining to a proposed annexation.  T.C.A. §§ 6-51-102 through -105.

Annexing municipalities are also required to provide a copy of the annexation resolution, along with a copy of the portion of the plan of services dealing with emergency services and a detailed map designating the annexed area, to any affected emergency communications district upon ratification of a resolution to annex. T.C.A. § 6-51-119.

Once an annexation resolution is approved by referendum, the annexing municipality is required to record the resolution with the register of deeds in the county or counties where the annexation was adopted or approved.  The annexing municipality must also send a copy of the resolution to the comptroller and the assessor of property of each county affected by the annexation.  T.C.A. § 6-51-121.