- Associated Press - Wednesday, September 2, 2015

ARLINGTON, W.Va. (AP) - Federal mine regulators are moving to expand a safety feature in coal operations aimed at preventing crushing of miners.

The U.S. Mine Safety and Health Administration says it wants to broaden the requirement for mine operators to install so-called proximity detection devices.

It says it will publish a proposed rule Wednesday calling for the detection systems on underground coal-hauling systems.

The proximity detection units would be equipped on scoops and shuttle cars, among other equipment used in mining.

The systems warn miners when they get too close to equipment.

MSHA estimates that only a fraction of underground coal-hauling machines are equipped with proximity detection.

Between 1984 and 2014, pinning, crushing and striking accidents killed 42 miners and injured 179 others nationwide.

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