Your search The Commonwealth of Pennsylvania and Senator Arlen Specter, Petitioners v. Surface Transportation Board and United States of America, Respondentsnorfolk Southern Corporation* and Norfolk Southern Railway Company, Intervenors/respondentstransport Workers Union of America,* National Conference of Firemen and Oilers/seiu, International Association of Machinists & Aerospace Workers, International Brotherhood of Boilermakers and Blacksmiths, International Brotherhood of Electrical Workers, Sheet Metal Workers' International Association, and Transportation Communications International Union, Intervenors/petitioners did not match any document.