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Each applicant for a chief electrician certificate shall demonstrate to the Board of Coal Mining Examiners by written and oral examination that he has a thorough knowledge of the theory and practice of electricity that pertains to coal mining. In addition, each applicant shall pass the examinations in first aid and gas detection. The holder of a chief electrician certificate issued by the Board shall be authorized to act as chief electrician in any coal mine. Code 1950, §§ 45-23, 45-28; 1954, c. 191; 1966, c. 594, § 45.1-12; 1972, c. 784; 1978, c. 729; 1980, c. 442; 1984, c. 237; 1994, c. 28 .
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