30 C.F.R. § 75.904 Identification of circuit breakers.
Title 30 - Mineral Resources
[Statutory Provisions] Circuit breakers shall be marked for identification.
Title 30: Mineral Resources
PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES
Subpart J—Underground Low- and Medium-Voltage Alternating Current Circuits
§ 75.904 Identification of circuit breakers.

