National Study Finds Truck Drivers On Road Using Illegal Drugs - NBC Right Now/KNDO/KNDU Tri-Cities, Yakima, WA |

National Study Finds Truck Drivers On Road Using Illegal Drugs

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WASHINGTON (AP) - Congressional investigators say tractor-trailer and bus drivers who tested positive for illegal drugs have flouted federal regulations by returning to work without the required treatment.

And the Government Accountability OPffice says in some cases they've transported hazardous materials for months.

The GAO found that 19 out of 37 commercial drivers who had a positive drug test in the last two years were hired elsewhere less than a month later -- keeping quiet about their previous test result.

These tractor-trailer or bus drivers passed a new pre-employment drug test either by quickly going clean or using products such as synthetic urine to mask drug use.

They subsequently operated commercial vehicles for months.

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