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Does a DOT Drug or Alcohol Violation Bar a Driver From Operating Any CMV?
In his July 2025 article in NDASA’s newsletter, Tim Thoelecke (CSAPA, InOut Labs) addresses a common question within the drug-and-alcohol testing industry: If a driver fails a DOT-regulated drug or alcohol test, is he or [...]
Who Needs a CDL? A Guide to Commercial Driver’s Licenses
What is a CDL and Who Needs It? Since 1992, the U.S. Department of Transportation has required certain commercial drivers to carry a Commercial Driver’s License (CDL). A CDL applies to drivers who: Drive [...]
What Is a CMV and Why It Matters in Commercial Transportation
Understanding what qualifies as a Commercial Motor Vehicle (CMV) is crucial for businesses and drivers in the transportation industry. The classification of a vehicle as a CMV affects which federal safety regulations apply, especially [...]
