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A. Each mine inspector conducting inspections of underground coal mines shall have a thorough knowledge of the various systems of working and ventilating underground coal mines; the nature and properties of mine gases and methods for their detection and control; the control of mine roof and ground control; 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. B. Each mine inspector conducting inspections of surface coal mines shall have a thorough knowledge of the various systems of working surface coal mines; the nature and properties of mine gases and methods of their detection and control; ground control; methods of rescue and recovery work in surface 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 surface facilities on mine property; and mine haulage. 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 ; 1997, c. 28 ; 2005, c. 28 .
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