Title 30 › Chapter 22— MINE SAFETY AND HEALTH › Subchapter II— INTERIM MANDATORY HEALTH STANDARDS › § 842
Coal mine operators must measure how much fine, breathable dust miners are exposed to. The measurements must use devices and methods approved by the Secretary of Labor and the Secretary of Health and Human Services, and follow rules they publish. Operators must send samples to the Secretary for analysis and keep miners’ results available. Operators must also report and certify working conditions (like hours, ventilation, mining method, water and spray use) as the Secretary requires. The Secretary will also make spot inspections. During each work shift, operators must keep the average respirable dust at or below 3.0 milligrams per cubic meter right away and at or below 2.0 milligrams per cubic meter three years after December 30, 1969. If an operator cannot meet a standard with available technology, they may apply to the Panel for a one-year noncompliance permit (apply at least 60 days before the standard takes effect). Permit applications must include an engineer’s survey, identified work areas, steps taken, and plans and timetable for meeting the standard. Permits can be renewed after notice and a public hearing, but no permit can allow delays past 18 months from December 30, 1969 for the 3.0 mg limit or 72 months from that date for the 2.0 mg limit. The Panel must set the lowest feasible dust level for any permit, but never above 4.5 mg/m3 when the 3.0 standard applies or above 3.0 mg/m3 when the 2.0 standard applies. The Secretary of Health and Human Services must also set a schedule (starting six months after the operative date) to lower dust further to prevent new or worsening lung disease. Approved respirators must be provided whenever dust exceeds limits, but respirators cannot replace efforts to control dust in the air. The term “average concentration” and “concentrations” refer to measurements made with approved devices and follow the measurement rules set by the Secretaries.
Full Legal Text
Mineral Lands and Mining — Source: USLM XML via OLRC
Legislative History
Reference
Citation
30 U.S.C. § 842
Title 30 — Mineral Lands and Mining
Last Updated
Apr 5, 2026
Release point: 119-73not60