Tenn. Code Ann. § 45-2-603

In the event of an emergency resulting from fire, act of God, attack by a foreign nation, riot, insurrection, civil disorder or any similar disaster, any bank, without regard to any restrictions imposed by this chapter and chapter 1 of this title, may take any action that it deems necessary to preserve its assets and protect the interests of its depositors, shareholders or employees including, but not restricted to, suspending business activity or obtaining the benefit of, or participating in, emergency action authorized by the government of the United States, or the state of Tennessee or its political subdivisions.