30 C.F.R. § 57.22312 Distribution boxes (II-A and V-A mines).
Title 30 - Mineral Resources
Distribution boxes containing short circuit protection for trailing cables of approved equipment shall be approved by MSHA under 30 CFR part 18.
Title 30: Mineral Resources
PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES
Subpart T—Safety Standards for Methane in Metal and Nonmetal Mines
Equipment
§ 57.22312 Distribution boxes (II-A and V-A mines).

