There has been recent news about marijuana laws changing at the federal level, leaving many drivers and employers wondering how this affects DOT drug testing.
If you’re a CDL driver or manage a safety-sensitive workforce, here’s what you need to know about DOT marijuana rules in 2025.
On December 18, 2025, the President issued an Executive Order asking the Department of Justice to move marijuana from a Schedule I to a Schedule III drug.
At this time, nothing has changed for DOT drug testing.
Marijuana is still considered a Schedule I drug until the process is complete
DOT drug testing regulations remain the same
Safety-sensitive employees are still tested for marijuana
Medical and recreational marijuana are still not allowed under DOT rules
CBD guidance has not changed
DOT drug testing applies to safety-sensitive transportation workers such as:
CDL truck and bus drivers
Pilots and aircraft mechanics
Train engineers and transit operators
Ship captains and pipeline workers
If your job requires DOT compliance, marijuana use is still prohibited—even if it is legal in your state.
There are no changes for employers, labs, Medical Review Officers (MROs), or Substance Abuse Professionals (SAPs). All must continue to follow 49 CFR Part 40.
While federal reclassification is being discussed, it does not automatically change DOT rules.
Any updates to DOT drug testing policies would require formal regulatory changes, and the Department of Transportation will issue guidance if and when that happens.
DOT marijuana rules have not changed.
Safety-sensitive employees must remain drug-free to:
Until official updates are made, CDL drug testing and DOT compliance rules remain the same.
For questions about DOT drug testing, compliance, or return-to-duty testing, DOTDOC Services is here to help.
