The operator or his agent shall instruct all miners in the removal and installation of temporary and permanent roof supports as may be required by the roof control plan.
Va. Code Ann. § 45.2-711, under Chapter 7. Requirements Applicable to Underground Coal Mines; Mine Construction..
Va. Code Ann. § 45.2-711
The operator or his agent shall instruct all miners in the removal and installation of temporary and permanent roof supports as may be required by the roof control plan.