Mine Safety and Health Administration (MSHA) - Interactive Training

U.S. Department of Labor
Mine Safety and Health Administration
Protecting Miners' Safety and Health Since 1978

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This establishes what we call the “six-foot visibility line” and “six-foot visibility point.” With an operator sitting in the seat and looking out the right side, the six-foot visibility point is 70 feet away. Looking out the front of the truck it's 40 feet away. Looking out the left side of the truck it's 9 feet away.


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