The Chief shall adopt regulations requiring automated temporary roof support systems for the installation of roof bolts.
Code 1950, §§ 45-68.1, 45-68.3; 1954, c. 191; 1966, c. 594, § 45.1-41; 1975, c. 520; 1978, c. 118; 1980, c. 338; 1982, c. 234; 1988, c. 577; 1994, c. 28, § 45.1-161.114; 1999, c. 256; 2021, Sp. Sess. I, c. 387.