ECFR SNAPSHOT / CURRENT THROUGH 2026-08-19

30 CFR 77.900

Low- and medium-voltage circuits serving portable or mobile three-phase alternating current equipment; circuit breakers.

CHAPTERCHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR

PARTPART 77—MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES

SUBPARTJ

CURRENT PUBLIC TEXT

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