(September 10, 2015, 7:27 AM EDT) -- WASHINGTON, D.C. — A South Carolina union violated the National Labor Relations Act (NLRA) by creating an exclusive hiring hall for its drivers and preventing others from being employed, the District of Columbia Circuit U.S. Court of Appeals panel ruled Aug. 21, enforcing a decision by the National Labor Relations Board (Teamsters Local Union No. 509 v. National Labor Relations Board, No. 12-1002, D.C. Cir.; 2015 U.S. App. LEXIS 14683)....