There is a lot of speculation about marijuana potentially moving from Schedule I to Schedule III under the federal Controlled Substances Act. For employers, the key is not to overreact to headlines.
A change in federal scheduling would not automatically legalize marijuana in the workplace, end drug testing, change DOT testing requirements, or require employers to tolerate employees who are impaired at work. Employers would also still need to comply with state laws that may protect medical marijuana use or lawful off-duty cannabis use.
The bigger issue for employers is whether their current policies still make sense.
Employers should review marijuana testing practices and determine whether testing is necessary for every job or primarily for safety-sensitive positions. A positive THC test may indicate past use, but it does not necessarily establish that an employee is currently impaired. That distinction will continue to create challenges for employers.
State law also remains critical. Depending on where employees work, employers may face restrictions on pre-employment marijuana testing, protections for lawful off-duty use, or accommodation requirements involving medical marijuana. In many cases, state law—not federal scheduling—is where the greatest employment-law risk exists.
Employers should also be prepared for more accommodation discussions involving employees who use medical marijuana for an underlying medical condition. While employers generally do not have to permit workplace impairment, blanket zero-tolerance approaches may deserve another look, particularly in states with specific employee protections.
Safety-sensitive positions remain different. Jobs involving driving, machinery, hazardous environments, public safety, or DOT-regulated work may justify stricter testing and drug-free workplace requirements.
What Employers Should Do Now
Review drug and alcohol policies for outdated language.
Confirm marijuana testing practices comply with the laws of every state where employees work.
Identify which positions genuinely require marijuana testing.
Train supervisors to recognize and document possible impairment.
Clearly distinguish between off-duty marijuana use and impairment at work.
Avoid changing policies solely because of federal rescheduling headlines.
Marijuana rescheduling would not mean employers suddenly lose the ability to maintain a safe, drug-free workplace. The smarter approach is to focus on safety, impairment, job-related testing, and state-specific employment laws rather than marijuana’s federal classification alone.
For most employers, this is a good time to review existing policies—not necessarily rewrite them entirely—and make sure practices are based on today’s workplace realities rather than “that’s how we’ve always done it.”
