01384oam 2200409 a 450 991070132730332120120215102743.0(CKB)5470000002417797(OCoLC)776876955(EXLCZ)99547000000241779720120215d2010 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierApplication of 30 C.F.R. Part 75.323(e) to bleeder systems[electronic resource][Arlington, Va.] :[U.S. Dept. of Labor, Mine Safety and Health Administration],[2010]1 online resource (8 pages)Program policy letter ;no. P10-V-7Title from title screen (viewed on Feb. 15, 2012)."Effective date 10/22/2010.""Expiration date 03/31/2012.""Reissue of P08-V-06."Application of 30 C.F.R. Part 75.323Mine safetyUnited StatesMine ventilationUnited StatesMine safetyMine ventilationUnited States.Mine Safety and Health Administration.GPOGPOGPOBOOK9910701327303321Application of 30 C.F.R. Part 75.323(e) to bleeder systems3093327UNINA