"Of the nation’s 13,000 mining operations, none met the screening criteria for a Pattern of Violations (POV), one of the toughest...

"The Mine Safety and Health Administration (MSHA) is revising certain safety standards for explosives at metal and nonmetal (MNM) mines....

"METAL/NONMETAL MINE FATALITY – A contract maintenance mechanic was performing elevator maintenance when the car descended, crushing the...

"For the fifth consecutive year, none of the nation’s more than 13,000 mining operations met the criteria for a Pattern of Violations...