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The Trump administration has dissolved the Drug Testing Advisory Board, which for more than three decades has overseen the development of federal testing programs and laboratories that process drug tests.

Driver Douglas Horn was fired for failing a drug test after using what he argued was a mislabeled CBD oil product to treat an injury.  

The Supreme Court ruled in favor of a truck driver who tested positive for marijuana and was fired from his job after he used what he argued was a mislabeled CBD oil product.

Oral fluid testing for marijuana could allow truck drivers to use the drug and avoid detection, according to the CEO of a real-time impairment detection testing technology company.

The action clears a path for the Department of Transportation and other federal agencies to begin fentanyl testing for federally regulated occupations like truck drivers.

Motor carriers must continue to conduct random drug tests with 50% of their truck drivers and random alcohol tests with 10% of their drivers in 2025, FMCSA announced.

A DEA proposal to downgrade marijuana from the most serious category of federal drug offenses to a lesser category has drawn more than 43,000 comments from groups and individuals.

DOT drug testing of truck drivers using oral fluid collections was approved more than a year ago, but a lack of certified lab testing facilities  has stalled use of the method.

NTSB filed comments with DEA expressing concerns that moving marijuana from Schedule I to Schedule III of the Controlled Substances Act could end testing of the drug for truck drivers.

On Nov. 18, the Federal Motor Carrier Safety Administration will start notifying state licensing agencies when a driver licensed in a state is newly prohibited in the Drug & Alcohol Clearinghouse.