The department is empowered to work in connection with the Tennessee valley authority, or any department or agency of the federal government, for the purpose of rendering service or advancing aeronautics generally in the state, and to spend such available funds as are necessary to carry out the work.
Cooperation with federal agencies
Tenn. Code Ann. § 42-2-220, under Department of Transportation.
Tenn. Code Ann. § 42-2-220