Off-Duty Cannabis Use and Your Job: A Wrongful Termination Attorney in DC on Whether You Can Be Fired

Cannabis is legal for adults in Washington, but many workers still assume a positive drug test means automatic termination. For most private-sector employees in D.C., that is no longer true. Since July 13, 2023, the Cannabis Employment Protections Amendment Act has barred most employers from firing workers for off-duty use or for failing a cannabis test without signs of impairment. If you lost your job over a test result or a weekend you spent legally, a wrongful termination attorney in DC can tell you whether the law protects you.

Can a D.C. employer fire you for using cannabis off duty?

In most cases, no. Under the Cannabis Employment Protections Amendment Act (D.C. Law 24-190), employers cannot fire, suspend, demote, refuse to hire, or otherwise penalize someone because of their cannabis use, their participation in D.C. ‘s or another state’s medical cannabis program, or a failed cannabis drug test.

The protection is aimed at what you do on your own time. It does not require an employer to allow cannabis at work. Using, possessing, or selling cannabis on the employer’s premises or during work hours remains a legitimate reason for discipline, and so does showing up impaired.

Employers also have notice duties. They must tell employees about these rights, whether their position has been designated safety sensitive, and how any drug or alcohol testing works. The notice goes to new hires and to all current employees every year.

Can you be fired for failing a drug test for THC in D.C.?

Not on the test result alone. A positive cannabis test is not enough to justify firing a protected employee unless there is also evidence of impairment. That matters because THC metabolites can remain in the body for days or weeks after use, long after any effect has worn off.

The law defines impairment narrowly. An employee is impaired when they show specific articulable symptoms while working, or during work hours, that substantially lessen their job performance or interfere with the employer’s obligation to keep the workplace safe under occupational safety and health law. Slurred speech while operating equipment might qualify. A test taken Monday morning showing traces from Saturday, with no observed symptoms, should not.

Employers can still adopt reasonable drug-free workplace policies, including testing after an accident or when there is reasonable suspicion. What they cannot do is treat the lab result as the whole story.

Which D.C. workers are not protected?

The main exceptions cover safety-sensitive jobs and positions governed by federal rules. A safety-sensitive position is one the employer designates because it is reasonably foreseeable that someone performing it under the influence would likely cause actual, immediate, and serious bodily injury or loss of life. Examples often include roles that involve operating vehicles or heavy equipment, certain construction work, and direct care for patients or children.

The law also yields when an employer must ban cannabis under a federal statute, regulation, contract, or funding agreement. Commercial drivers subject to U.S. Department of Transportation testing fall into this group, as do many employees of federal contractors. Federal employees working in D.C. are governed by federal drug-free workplace rules rather than this District law.

A safety-sensitive label is not a blank check. The designation has to fit the actual duties of the job, and an employer that applies it after the fact, or to a desk role with no real safety risk, invites a challenge.

Do medical cannabis patients have extra protection?

Yes. Registered patients in D.C.’s medical cannabis program, or in another state’s program, are protected from adverse action based on that status. Employees with a disability may also have rights under the D.C. Human Rights Act, which can require an employer to consider reasonable accommodations. Employment law commentators have read the statute as potentially allowing a non-smokable form of medical cannabis at work, as long as the employee is not impaired, does not hold a safety-sensitive position, and the employer is not bound by a conflicting federal requirement. This area is still developing, so a patient facing discipline should get advice on their specific facts.

How do you file a cannabis discrimination complaint, and what can you recover?

You generally have one year from the violation to file a complaint with the D.C. Office of Human Rights (OHR). Recreational users must go through OHR before filing a lawsuit, while medical cannabis patients may also bring a private action in court. The D.C. The Attorney General can enforce the law as well.

If OHR finds a violation, it can order lost wages, attorneys’ fees and costs, training, and civil penalties scaled to employer size:

Employer size	Maximum civil penalty per violation
1 to 30 employees	$1,000
31 to 99 employees	$2,500
100 or more employees	$5,000

Half of any penalty goes to the employee and half to the District, and employers found in violation within the past year can face double the amount. In court, compensatory damages and other equitable relief are also available.

When should you contact a wrongful termination attorney in DC about a cannabis firing?

As soon as you are disciplined or let go, and before you sign a separation agreement. Ask for a copy of the test result, the drug policy, and any notice you received about your rights or a safety-sensitive designation. Write down who observed you on the day in question and whether anyone described symptoms or simply pointed to the lab report. If the employer gave a different reason for the firing, keep that too, since a shifting explanation can show the real motive.

A wrongful termination attorney in DC can check whether an exception truly applies to your role, whether the impairment standard was met, and how to preserve your claim inside the one-year window.

Protecting Your Job After a Cannabis Test

D.C. treats legal, off-duty cannabis use as your own business unless your job is safety sensitive, federal rules apply, or you were impaired at work. A positive test by itself is not grounds for firing most District employees. If your employer ignored that line, the Mundaca Law Firm can help you hold them accountable. Schedule a confidential consultation with a wrongful termination attorney in DC to review your situation before the filing deadline passes.