O.C.G.A. § 25-3-5: Operation of other fire departments within municipalities or counties.

Nothing within this article shall be construed so as to permit a county or other fire department to operate within the limits of a municipality except by written or oral contract with the municipality. Nothing within this article shall be construed so as to permit a municipal fire department to operate in the unincorporated area of a county except by written or oral contract with the county.