Court of Appeals for the D.C. Circuit June 17, 1997, 96-1150 (National Mining Association v. Mine Safety And Health Administration)

116 F.3d 520 325 U.S.App.D.C. 176, 1997 O.S.H.D. (CCH) P 31,369 NATIONAL MINING ASSOCIATION, Petitioner, v. MINE SAFETY AND HEALTH ADMINISTRATION and Secretary of Labor, Respondents, United Mine Workers of America, International Union, Intervenor. Nos. 92-1288 to 92-1290, 96-1150 and 96-1155. United States Court of Appeals, District of Columbia Circuit. Argued April 8, 1997. Decided June 17, 1997.