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.
Code 1950, § 45-68.2; 1954, c. 191; 1966, c. 594, § 45.1-40; 1975, c. 520; 1978, c. 729; 1984, c. 590; 1994, c. 28.