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The U.S. Department of Labor has introduced new regulations to limit miners' exposure to hazardous silica dust in an effort to protect workers from chronic health issues and death. The Mine Safety and Health Administration (MSHA) finalized the rule on Tuesday, which primarily aligns with the proposed version released last year.

DOL Finalizes Rule To Curb Miners' Exposure To Silica Dust : Stricter Safety Standards

The rule establishes a new exposure limit of 50 micrograms of crystalline silica per cubic meter of air over an eight-hour shift in coal, metal, and nonmetal mines. This is part of an ongoing effort to enhance protections against airborne hazards in the mining industry. The regulation will be published in the Federal Register on Thursday, with most measures taking effect within two months.

Labor Secretary Julie Su stated, "It is unconscionable that our nation's miners have worked without adequate protection from silica dust despite it being a known health hazard for decades." She expressed determination to ensure miners can work in safer conditions.

Gradual Compliance Deadlines

Coal mine operators will have one year to comply with the new regulations, while metal and nonmetal mine operators have two years. These staggered timelines aim to balance the need for immediate protection with allowing mine operators to prepare for the changes.

The final rule follows extensive public feedback and multiple hearings held in August. MSHA's findings support the dangers of silica dust exposure, which can lead to lung cancer, emphysema, chronic bronchitis, and other serious health conditions.

Engineering and Administrative Controls

To comply with the new standards, mine operators must adopt engineering control methods like installing ventilation systems or dust collectors, as well as administrative measures to reduce silica exposure. Additionally, mine operators must conduct sampling, report incidents of overexposure, and take immediate corrective action.

MSHA noted the rule would prevent about 1,000 deaths and thousands of illnesses linked to silica exposure. A further action level of 25 micrograms per cubic meter will prompt increased monitoring when exceeded.

DOL Finalizes Rule To Curb Miners' Exposure To Silica Dust : Opposition from Industry

Some industry representatives have voiced concerns over the rule. Rep. Virginia Foxx, R-N.C., criticized the new regulations as "unworkable" and accused the DOL of economic illiteracy. However, Ashley Burke, spokesperson for the National Mining Association, stated the association supports the new limits and remains committed to improving miners' health and safety.

Cecil E. Roberts, international president of the United Mine Workers of America, praised the rule as a critical step in protecting miners' health and pledged continued vigilance in ensuring compliance.

MSHA's silica dust rule is the latest effort in a decade-long push to strengthen protections for miners from airborne hazards.