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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 i - UNDERGROUND HIGH - VOLTAGE DISTRIBUTION
75.800 - 4 - Testing, examination, and maintenance of circuit breakers; record.
(a) Recordkeeping. The operator shall make a record of each test, examination, repair, or adjustment of all circuit breakers protecting high-voltage circuits which enter any underground area of the mine.
(b) Record security. These records shall be made in a secure book that is not susceptible to alteration or electronically in a computer system so as to be secure and not susceptible to alteration.
(c) Retention and access. These records shall be retained at a surface location at the mine for at least one year and shall be made available to authorized representatives of the Secretary, the representative of miners, and other interested persons.
[64 FR 43287, Aug. 10, 1999]
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