Tenn. Code Ann. § 4-21-314: Simultaneous action in state and federal courts concerning common nucleus of operative facts prohibited

No employee may concurrently maintain any cause of action in state court under § 4-21-401 , § 8-50-103 , or § 50-1-304 , while at the same time prosecuting an action in federal court based on a common nucleus of operative facts. Upon motion of the employer, the state court shall dismiss any action maintained under § 4-21-401 , § 8-50-103 , or § 50-1-304 , in which the employee is concurrently prosecuting an action based on a common nucleus of operative facts in federal court.