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Portions of the Department of Transportation are currently in shutdown/furlough status due to a lapse in appropriations. Please continue to monitor this page for updates on DOT’s operating status.

Final rule.

The U.S. Department of Transportation (DOT) revises its drug and alcohol testing procedures, as amended by a final rule published on May 2, 2023, to provide temporary qualification requirements for mock oral fluid monitors, provide for consistent requirements by identifying which individuals may be present during an oral fluid collection, and clarify how collectors are to document that a sufficient volume of oral fluid was collected.

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