Nos. 03-1984, 03-2139. Argued: June 3, 2004. Decided: January 12, 2005. Petition for review of National Labor Relations Board. ARGUED: John Clark Unkovic, Reed Smith, L.L.P., Pittsburgh, Pennsylvania, for West Penn Power Company, Potomac Edison Power Company, and Allegheny Energy Service Corporation. Joan Elizabeth Hoyte, Office of the General, National Labor Relations Board, Washington, D.C., for the Board. Burton E. Rosenthal, Segal, Roitman Coleman, Boston, Massachusetts, for Intervenor. ON BRIEF: