According to the Trucking Alliance, results of a university study indicated “a major discrepancy between the number of drivers who failed a urinalysis drug screen and those who failed a hair test."
Focus On... Behind the Scenes of Mack RoadLife 2.0 [Video]
Mack Trucks sent a film crew to Valdez, Alaska to shoot an episode of its RoadLife video series about a Mack Granite snowplow and the Alaska DOT crew that works to keep the Thompson Pass open in winter. Equipment Editor Jim Park went with the crew to film the filming of RoadLife 2.0: Alaska DOT.