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TITLE 30 - MINERAL RESOURCES
CHAPTER I - MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR
SUBCHAPTER O - COAL MINE SAFETY AND HEALTH
PART 75 - MANDATORY SAFETY STANDARDS - UNDERGROUND COAL MINES
subpart f - ELECTRICAL EQUIPMENT - GENERAL
75.508 - 2 - Changes in electric system map; recording.
Changes made in the location, electrical rating or setting within the mine electrical system shall be recorded on the map of such system no later than the end of the next workday following completion of such changes.
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