MSHAProposed Rule

Photometers

Labor & WorkplaceEnvironment

Summary

The Mine Safety and Health Administration (MSHA) is proposing new rules about photometers, which are devices that measure light in mining operations. These rules aim to ensure that mines use accurate equipment to monitor lighting conditions for worker safety and visibility in underground and surface mining environments.

Key Points

  • 1MSHA is establishing standards for photometers used in mines to ensure they accurately measure light levels
  • 2The regulation affects mining companies and safety managers who are responsible for monitoring workplace lighting conditions
  • 3Mining operations must comply with new photometer requirements to maintain safe working conditions for miners
  • 4The public has until August 1, 2025 to submit comments on this proposed rule before it becomes final
  • 5Better light measurement standards help prevent accidents and injuries caused by poor visibility in mining work areas

Key Dates

Published

July 1, 2025

Comment Deadline

August 1, 2025

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This summary is for informational purposes only. It may not capture all nuances of the regulation. Always refer to the official text for authoritative information.

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