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It’s not often that trucking regulations generate debate beyond the inner-circle of those who make their living in the industry. But new hours of service rules that took effect July 1, 2013 have gained national attention a year after they were implemented.

Over the past year, trucking industry groups have rallied against the rules—especially the new mandatory breaks and 34-hour restart—citing loss of productivity and questionable effects on safety.

drugTestingUPSince 1993, the profile of a drugged driver has changed substantially. More drivers are now testing positive for prescription drugs, cannabis, and multiple drugs, and they are more likely to be older than 50, according to a study released in Public Health Reports.

“While we’ve seen a decrease over the years in motor vehicle fatalities involving people under the influence, the nature of those crashes is changing,” said study author Fernando Wilson, PhD, associate professor at the University of Nebraska Medical Center.