There’s been a lot of recent activity on the drug-testing front in trucking: The debut of FMCSA’s long-awaited Drug and Alcohol Clearinghouse, a doubling of the percentage of drivers who must be randomly tested, and increased interest in alternatives to traditional urine testing. How is the legalization of marijuana in many states affecting the drug-testing of trucking’s safety-sensitive workers? What will the Clearinghouse mean for motor carriers? Why do some in the industry advocate for hair testing? We spoke with Dave Osiecki, the president and CEO of Scopelitis Transportation Consulting, to get some insight into these questions and others.