Federal mine enforcement officers issued 157 citations, one order and two safeguards during the special impact inspections conducted at 10 coal mines and six metal and nonmetal mines in March.

Among the 16 special impact inspections conducted by the Mine Safety and Health Administration (MSHA) in April was one at the Alcoa World Alumina LLC's Bayer Alumina Plant in Calhoun County, Texas, which resulted in 27 citations and seven orders.