Order to Refit Approved Underground Mine Shelters
Indicative Operator Refit Plan (MS Word file)
Labor/Industry
Briefing 19 Sept 2011
West Virginia Equipment
Failure Notice 13 January 2011
MSHA Refuge Chamber Alert 20 January 2011
Sherry Laboratory Metallurgy Report 27 January 2011
MSHA Refuge Chamber Alert Update 10 February 2011
Superior Products Letter 3 May 2011
OSHA Metallurgy Report 18 May 2011
Superior Products Letter 6 July 2011
Compress Gas Association Standard – Connection 701
Summary MSHA Part 7 Component Requirements