The DOT's proposed rule would add fentanyl and norfentanyl to drug testing panels for safety-critical roles such as CMV drivers, with detection thresholds as low as 1 ng/mL in urine. The fentanyl ...
The U.S. Department of Transportation is proposing to amend its drug testing regulations to add fentanyl (a synthetic opioid) and norfentanyl (a metabolite of fentanyl) to its drug testing panels. The ...
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