MSHA, Mining Industry Reach Settlement on Diesel Particulate

July 22, 2002
The Mine Safety and Health Administration (MSHA) reached a second interim agreement with industry and labor concerning the agency

's standard on diesel particulate matter (DPM) exposure of metal and nonmetal miners.

Under the agreement mine operators must develop and implement good-faith compliance strategies to meet the interim DPM concentration limit that takes effect on July 20.

"This settlement is an important step towards protecting miners' health, " said Dave D. Lauriski, assistant secretary of labor for mine safety and health. "I'm gratified that industry, labor and MSHA were able to come together to resolve differences. For the next year we will work intensively together to reduce exposures to diesel particulate matter that increase the risk of lung disease in miners."

MSHA will conduct compliance assistance to help mine operators meet the DPM interim standard of 400 micrograms of total carbon per cubic meter of air. The agency will conduct sampling to help mine operators assess their progress and provide information on feasible control technology. The agency will take appropriate enforcement actions in case mine operators do not work in good faith toward compliance, and will issue citations for failure to comply with the 400-microgram interim limit starting July 20, 2003.

MSHA also agreed to reenter rulemaking on several other disputed provisions in the metal and nonmetal DPM standards.

Several industry organizations went to court to contest MSHA's final rule, "Diesel Particulate Exposure of Underground Metal and Nonmetal Miners," shortly after it was published in January 2001. Under a previous partial settlement, several provisions of the rule went into effect or were amended through rulemaking completed in February 2002. Joint sampling was conducted by industry, labor and government at 31 underground mines to determine existing concentration levels of diesel particulate matter and to gather information about the feasibility of complying with the standard's concentration limits in the underground mine environment.

A notice announcing the partial settlement on MSHA's metal/nonmetal DPM rule appeared in the Federal Register and is posted on MSHA's Web site at www.msha.gov.

About the Author

Sandy Smith

Sandy Smith is the former content director of EHS Today, and is currently the EHSQ content & community lead at Intelex Technologies Inc. She has written about occupational safety and health and environmental issues since 1990.

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