MSHA conducted special impact inspections at mines in Alabama, Arizona, California, Colorado, Florida, Illinois, Iowa, Kentucky, Ohio, Pennsylvania, Virginia and West Virginia.
Monthly impact inspections began in force in April 2010 at mines that merit increased agency attention and enforcement due to their poor compliance history or particular compliance concerns. Since then, MSHA inspectors have conducted 1,098 impact inspections and issued 15,833 citations, 1,303 orders and 58 safeguards.