The Chief shall conduct a complete inspection of every underground coal mine not less frequently than every 180 days, and of every surface coal mine not less frequently than once per year. Additional inspections of coal mines shall be made when deemed appropriate by the Chief based on an evaluation of risks at each mine, or if requested by miners employed at a mine or the operator of a mine.
Code 1950, §§ 45-4.1, 45-9, 45-12, 45-74; 1954, c. 191; 1966, c. 594, § 45.1-5; 1976, c. 598; 1978, c. 120; 1984, c. 236; 1985, c. 448; 1987, c. 470; 1990, c. 963; 1994, c. 28; 1997, c. 390.