Secretary of Labor v. Ohio Valley Coal Co.

**What happened:** This case involved a dispute over mine safety rules at Ohio Valley Coal Company. The issue was whether safety regulations that require machinery to be powered off during repairs and maintenance also apply when miners are simply examining equipment to figure out what repairs might be needed. The coal company argued that the power-off rule only applied during actual repair work, not during initial inspections or assessments. **What the court decided:** The court sided with the Secretary of Labor and ruled that safety regulations requiring machinery to be powered off apply even when miners are just assessing what repairs are needed - not just during the actual repair work itself. The court reversed an earlier decision by the Federal Mine Safety and Health Review Commission that had favored the coal company's interpretation. **Why this matters for workers:** This ruling strengthens workplace safety protections for miners and potentially other workers around dangerous machinery. It establishes that safety protocols must be followed from the very beginning of any maintenance process, including preliminary inspections. This reduces the risk of accidents and injuries by ensuring workers aren't exposed to powered machinery during any part of the maintenance workflow.