There has been recent news about marijuana laws changing at the federal level. Many DOT-regulated drivers and employers are asking if this affects DOT drug testing rules.
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.
DOT marijuana rules have not changed. Safety-sensitive employees must remain drug-free to protect public safety. The DOT will share updates if any changes occur.
For questions about DOT drug testing, compliance, or return-to-duty testing, DOTDOC Services is here to help.
