§ 7106. (21-2)-(21-100). Gassy Mine Operation.

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Gassy mines shall be operated in accordance with all mandatory U.S. Bureau of Mines Health and Safety Standards for Metal and Nonmetallic Underground Gassy Mines, published July 31, 1969, February 25, 1970, and December 8, 1970.

Note

Note: The principal hazards of all shaft work are falls of persons; falling materials, including rock from operating skips and skip pockets; and skips in adjoining compartments which may strike workers or materials being handled.

Note: The hazards of falling persons and falling materials decrease as the incline of the shaft grows flatter, but a fall in a 20 degree shaft may cause painful or even serious injury.

                    
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