
If you thought the federal government’s push to reschedule marijuana was going to be a smooth ride, you clearly haven’t spoken to the people in charge of our highways and airspace.
A massive coalition of transportation and safety organizations, spearheaded by the American Trucking Associations, is officially sounding the alarm. In a letter sent to top federal officials—including Acting Attorney General Todd Blanche, DEA Administrator Terrance Cole, HHS Secretary Robert F. Kennedy Jr., and Transportation Secretary Sean Duffy—the groups expressed “serious safety concerns” about the Trump administration’s effort to move cannabis to Schedule III.
Their main fear? That rescheduling weed might accidentally dismantle the entire drug-testing framework for “safety-sensitive” workers like truck drivers, airline pilots, and transit operators.
The DOT Has Already Said “No”
To be fair, the Department of Transportation (DOT) already tried to nip this in the bud. Back in May, the agency issued strict guidance explicitly stating that a medical marijuana card is not a get-out-of-jail-free card for safety-sensitive workers. Even if cannabis is bumped down to Schedule III, the DOT warned that medical review officers cannot verify a THC-positive drug test as “negative.” Why? Because state-licensed medical marijuana still isn’t an FDA-approved drug.
The Bureaucratic Pothole
So, if the DOT already laid down the law, what’s the problem?
According to the transportation coalition, it all comes down to red tape and lab certifications. The DOT’s drug testing program heavily relies on procedures and certifications from the Department of Health and Human Services (HHS). The groups are terrified that once marijuana is rescheduled, the DOT will lose the “scientific and procedural infrastructure” to legally and accurately rely on HHS labs for cannabis testing.
Basically, they are worried about a regulatory loophole that could leave employers with the authority to test for weed, but no federally certified labs to actually process those tests.
What Do They Want?
The coalition isn’t asking the feds to stop rescheduling altogether, but they are demanding a bulletproof backup plan. They want the agencies to work together to:
- Safeguard long-term testing: Guarantee that employers retain the explicit authority to test transportation workers for marijuana.
- Keep the labs open: Ensure that HHS laboratory certifications remain perfectly aligned with the DOT’s safety mission.
- Get on the same page: Establish a coordinated, cross-agency federal strategy so there is zero confusion when (or if) the new scheduling rules drop.
Until the feds can patch up this potential regulatory pothole, the transportation industry is making one thing perfectly clear: they want their pilots and drivers flying high on caffeine, not cannabis.
Dabbin-Dad Newsroom

