Marijuana may have a new classification at the federal level, but that doesn’t give CDL holders new permission to use it.
Recent federal action moved certain medical marijuana products from Schedule I to Schedule III, creating plenty of headlines and even more confusion. For CDL holders and motor carriers, though, the practical answer is still the same: marijuana remains prohibited for all DOT-regulated drivers. DOT drug testing still includes marijuana, and a positive test still means the driver must be removed from safety-sensitive functions and reported to the FMCSA Drug and Alcohol Clearinghouse. State legalization and medical marijuana status do not change that.
What Changed at the Federal Level
On April 23, 2026, the Department of Justice and the Drug Enforcement Administration announced that FDA-approved products containing marijuana and qualifying state-licensed medical marijuana products were being moved from Schedule I to Schedule III under the Controlled Substances Act. The action followed a December 2025 executive order from President Trump directing the DOJ to expedite the rescheduling process.
DOJ framed the move as a way to improve research access, give patients and medical providers better information, and maintain federal controls around marijuana. It may also reduce certain tax and regulatory burdens for state-licensed medical cannabis businesses.
It is also worth understanding what this reclassification actually covers. The immediate shift applies to FDA-approved marijuana products and qualifying state-licensed medical marijuana products. Recreational marijuana is not included and remains a Schedule I controlled substance under federal law. Also, Schedule III is still a controlled substance classification, not federal legalization.
DOJ and DEA also initiated a separate administrative hearing, set to begin June 29, 2026, to consider whether to move marijuana more broadly to Schedule III.
What This Means for DOT Drug Testing
The reclassification may change how certain medical marijuana products are treated under federal drug law, but it does not change how marijuana is treated under DOT drug testing rules.
A few points are worth stating clearly:
- There is no medical exemption. A Medical Review Officer cannot accept a state medical marijuana card or a physician’s recommendation as a valid explanation for a positive marijuana test result. It does not matter whether marijuana is legal in your state for medical or recreational use.
- The consequences of a positive test have not changed. A positive marijuana test still results in removal from safety-sensitive duties, a record in the FMCSA Drug and Alcohol Clearinghouse, and the full return-to-duty process before the driver can operate a commercial motor vehicle again.
- Driver confusion can quickly become a Clearinghouse problem. Since the Clearinghouse launched in January 2020, marijuana metabolites have appeared in over 206,000 positive test results, accounting for roughly 60 percent of all substances identified in positive drug tests. If drivers see the reclassification headlines and mistakenly believe the DOT rules have changed, carriers could see more positive tests, more removals from duty, and more return-to-duty situations.
If the reclassification headlines have raised questions within your fleet, US Compliance Services can help you review your testing protocols, documentation, Clearinghouse responsibilities, and driver communication before confusion becomes a compliance problem. Contact us to schedule a review.
