Yes, employers in California still drug test for weed, but a law that took effect January 1, 2024, sharply limits what they can do with the results. For most jobs, an employer can no longer fire you, refuse to hire you, or otherwise punish you because a standard urine or hair test picked up cannabis from your off-duty life. The catch is in the type of test and the type of job.
What Employers Can and Cannot Do Since 2024
Two laws changed the rules. Assembly Bill 2188 added Section 12954 to the Government Code, making it illegal for most employers to discriminate against workers or applicants based on off-duty, off-site cannabis use detected as non-psychoactive metabolites. Senate Bill 700 went further and prohibited employers from asking job applicants about prior cannabis use during hiring.1California Legislative Information. California Government Code 12954
Both laws sit inside the Fair Employment and Housing Act. That means cannabis-based employment discrimination is treated like any other FEHA violation, with the same enforcement machinery behind it.
What employers can still do: test you, refuse to tolerate on-the-job use, and take action if you’re actually impaired at work. What they cannot do, in most jobs: hold a positive metabolite result against you when you used cannabis on your own time.
The Test Type Is Everything
The law splits cannabis testing into two categories, and knowing which one you took matters more than the result itself.
Urine tests and hair follicle tests mostly detect non-psychoactive metabolites. These are byproducts your body creates after processing THC, and they linger in urine for days to weeks and in hair for up to 90 days. A positive on this kind of test says little about whether you’re impaired now. Under Government Code Section 12954, employers cannot base an adverse employment action on a positive metabolite-only result.1California Legislative Information. California Government Code 12954
Tests that detect active THC are different. Oral fluid (saliva) tests are the most common compliant option and generally reflect much more recent use. Blood tests can also detect active THC. Employers are allowed to use any scientifically valid test that measures active THC, or an impairment test that compares your current performance to your own baseline. If your employer wants to screen for cannabis and act on the result, this is the direction they have to go.
Who Is Not Covered
Several categories of workers are excluded from the 2024 protections. If you fall into one of them, your employer can keep testing the old way.
- Workers in the building and construction trades are explicitly excluded from Section 12954.1California Legislative Information. California Government Code 12954
- Jobs requiring a federal background investigation or security clearance under Department of Defense regulations remain subject to federal standards.2California Emergency Medical Services Authority. Assembly Bill No. 2188 Chapter 392
- DOT-regulated employees, including commercial drivers, pilots, train engineers, and pipeline workers, must still submit to federal cannabis testing. The DOT has stated that marijuana remains unacceptable for any DOT safety-sensitive employee regardless of state law.3U.S. Department of Transportation. DOT’s Notice on Testing for Marijuana
- Any position where testing is required by federal law, federal contract, or the terms of federal licensing or funding falls outside California’s protections.4California State Senate Judiciary Committee. AB 2188 Quirk SJUD Analysis
The DOT rule is unusually strict. Federal regulations bar Medical Review Officers from clearing a test as negative just because the employee used cannabis under a state law that permits it. A California medical cannabis recommendation will not protect a DOT-regulated employee from the consequences of a positive test.5eCFR. 49 CFR Part 40 – Procedures for Transportation Workplace Drug and Alcohol Testing Programs
Pre-Employment and Random Testing
Pre-employment testing is still allowed. What has changed is the kind of test an employer can rely on. Rejecting an applicant based solely on a urine test that flagged non-psychoactive metabolites now violates FEHA. If a California employer wants to screen new hires for cannabis, the compliant path is a test that detects active THC.
Random drug testing is a different matter. Outside of federally mandated programs like DOT testing, California’s strong constitutional privacy protections limit random screening. Employers generally need a specific, job-related reason to test, such as reasonable suspicion of on-the-job impairment or a post-accident investigation.
If You Fail a Test After a Workplace Injury
A positive cannabis test after a workplace accident does not automatically end your workers’ compensation claim. Under California Labor Code Section 3600, an employer can deny compensation only when the injury was actually caused by intoxication from alcohol or the unlawful use of a controlled substance.6California Legislative Information. California Labor Code 3600
Causation is the burden. A positive urine test on its own does not show that cannabis use caused the accident, especially when the test only found metabolites from days earlier. The employer has to connect impairment to the injury, and that is a harder showing than many injured workers assume.
Medical Cannabis Users
The 2024 protections cover recreational and medical use alike, but medical users may have a further layer of protection under FEHA’s disability provisions. FEHA requires reasonable accommodation of physical and mental disabilities, and that can extend to medications used to manage a qualifying condition.7California Civil Rights Department. Employment Discrimination Based on Disability
None of this authorizes cannabis use at work or on the clock. It applies to off-duty use tied to a qualifying disability, and employers can still resist accommodation by showing undue hardship or a direct threat to safety.
What to Do If Your Employer Violates the Law
Complaints go to the California Civil Rights Department. You have three years from the date of the discriminatory act to start the process through the CRD’s online intake system. The CRD will interview you and can investigate.8California Civil Rights Department. Complaint Process
You can also skip the CRD investigation and sue directly in court, but you must first request and receive a Right-to-Sue notice from the CRD. That step is mandatory for FEHA claims.8California Civil Rights Department. Complaint Process
Remedies available under FEHA include back pay, reinstatement or hiring, compensation for emotional distress, punitive damages, and attorney’s fees and costs.9California Civil Rights Department. Employment Because cannabis discrimination now falls under FEHA, it carries the same enforcement weight as any other form of workplace discrimination in California.