Tenn. Code § 69-8-102
When the governor has executed this compact on behalf of this state and has caused a verified copy of the compact to be filed with the secretary of state, and when the compact has been ratified as provided in Article II of the compact, and when the general assemblies or the chief legislative bodies of the states of Alabama and Mississippi have approved Tennessee as a compacting state, then it shall become operative and effective as between this state and such other states, and the governor is hereby authorized and directed to take such action as may be necessary to complete the exchange of official documents between this state and any other state ratifying the compact. All documents relating to the compact shall be filed with the secretary of state.
T.C.A. § 69-8-102