The Chief shall have a thorough knowledge of the various systems of working and ventilating coal mines, nature and properties of mine gases and methods for their detection and control, the control of mine roof, methods of rescue and recovery work in mine disasters, application of electricity and mechanical loading in mining operations, equipment and explosives used in mining, methods for preventing gas and dust explosions in mines, and mine haulage. The Chief shall possess such experience or educational background in management as determined necessary by the Governor and shall be not less than thirty years of age.
Code 1950, §§ 45-4, 45-5, 45-6; 1954, c. 191; 1966, c. 594, § 45.1-4; 1972, c. 784; 1978, cc. 120, 727; 1981, c. 32; 1984, cc. 184, 337, 590; 1987, Sp. Sess., c. 1; 1994, c. 28.