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Pennsylvania Coal Alliance
American Society of Reclamation Sciences
National Association of Abandoned Mine Land Programs
National Mining Association
National Lime Association
National Stone, Sand & Gravel Association
Pennsylvania Aggregates and Concrete Association
OSMRE
PA Online Code & Bulletin
PA DEP Bureau of District Mining Operations
Current DEP DMO Org Chart
PA DEP Bureau of Abandoned Mine Reclamation
Society for Mining, Metallurgy & Expoloration
