Electric lamps used for personal illumination shall be approved by MSHA under the requirements of 30 CFR parts 19 or 20, as applicable.
Explosives
053-3 Wyo. Code R. § 57.22501
Electric lamps used for personal illumination shall be approved by MSHA under the requirements of 30 CFR parts 19 or 20, as applicable.
Explosives
053-3 Wyo. Code R. § 57.22501