Yes, employers in California still drug test for weed, but as of January 1, 2024, most of them can no longer fire you, refuse to hire you, or otherwise punish you based on a standard positive result. The reason is a distinction built into the new law: a test that finds leftover cannabis metabolites from days or weeks ago is no longer a lawful basis for an adverse employment action, while a test that detects active THC in your system right now still is.
What the 2024 Laws Actually Changed
Two statutes rewrote the rules. Assembly Bill 2188 added Section 12954 to the Government Code and made it illegal for most employers to discriminate against workers or applicants based on off-duty, off-site cannabis use. An employer cannot take action against you because a drug test picked up non-psychoactive cannabis metabolites, which are the chemical traces your body stores long after any effects wear off.1California Legislative Information. California Government Code 12954
Senate Bill 700 closed a related loophole. Employers can no longer ask job applicants about prior cannabis use during the hiring process. A truthful “yes” used to be enough to lose an offer; that question is now off the table for most California employers.1California Legislative Information. California Government Code 12954
Both laws amended the Fair Employment and Housing Act, so cannabis-related discrimination at work now carries the same enforcement weight as discrimination based on race, sex, or disability.
Which Tests Can Still Be Used Against You
The law turns on what the test actually measures.
Traditional urine screens and hair follicle tests primarily detect non-psychoactive metabolites. These linger in urine for days to weeks and in hair for up to 90 days. A positive result from one of these tests, by itself, is no longer a lawful basis for firing, refusing to hire, or otherwise penalizing a worker covered by the new law.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 employers are increasingly switching to them. Blood tests also detect active THC but are more invasive and less practical for routine screening. Impairment tests that compare your performance against your own baseline are permitted as well. In short, an employer who wants to screen for recent use or on-the-job impairment still can; an employer who wants to punish you for what you did last weekend cannot.
Jobs That Are Exempt
The protections do not cover everyone. If your job falls into one of these categories, your employer can keep testing the old way and acting on the results.
- Building and construction trades are explicitly excluded from Section 12954.1California Legislative Information. California Government Code 12954
- Positions requiring a federal background investigation or security clearance under Department of Defense regulations remain governed by federal rules.2California Emergency Medical Services Authority. Assembly Bill No. 2188 Chapter 392
- DOT-regulated safety-sensitive workers (commercial drivers, pilots, train engineers, pipeline workers, and others) still face federal cannabis testing. The U.S. Department of Transportation 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 job where testing is required to comply with federal law or to keep a federal contract, license, or funding is also carved out.4California State Senate Judiciary Committee. AB 2188 Quirk SJUD Analysis
The DOT carveout is especially rigid. A valid California medical cannabis recommendation will not save a DOT-regulated worker from the consequences of a positive federal test.
Pre-Employment and Random Testing
Pre-employment testing is still allowed, but the test has to comply with the new rules. An employer can require a drug screen before hiring; it cannot reject you based solely on a metabolite-positive urine result. Doing so is now a FEHA violation.
Random testing is a different question. Outside of federally mandated programs like DOT, California’s strong privacy protections have long limited random workplace drug testing. Employers generally need a specific, job-related reason, such as reasonable suspicion of on-the-job impairment or a post-accident investigation.
If You Test Positive After a Workplace Injury
A positive cannabis test after an on-the-job injury does not automatically defeat your workers’ compensation claim. Under California Labor Code Section 3600, an employer can deny compensation only when the injury was actually caused by the worker’s intoxication from alcohol or the unlawful use of a controlled substance.5California Legislative Information. California Labor Code 3600
Causation is the hinge. The employer has to show a direct link between impairment and the accident, and a urine test showing old metabolites proves nothing about whether you were impaired when you got hurt. Do not assume a positive result ends your claim.
Medical Cannabis Users
If you use cannabis to manage a qualifying disability, you may have an additional layer of protection beyond AB 2188. FEHA requires employers to provide reasonable accommodations for employees with physical or mental disabilities, and that duty can reach the medications an employee takes for the condition.6California Civil Rights Department. Employment Discrimination Based on Disability
None of this entitles you to use cannabis at work or to show up impaired. But if your employer takes action against you solely because of off-duty medical use, the accommodation analysis may give you a second claim. Employers can defend by showing undue hardship or a direct threat to safety.
How to Enforce Your Rights
If you think an employer violated these protections, you file a complaint with the California Civil Rights Department. You have three years from the date of the discriminatory act to start the process by submitting an intake form through the CRD’s online system. The CRD conducts an intake interview and investigates.7California Civil Rights Department. Complaint Process
You can skip the CRD investigation and file your own lawsuit, but only after obtaining a Right-to-Sue notice from the CRD. That step is mandatory for employment discrimination claims under FEHA.7California Civil Rights Department. Complaint Process
If you win, available remedies include back pay, reinstatement or hiring, compensation for emotional distress, punitive damages, and attorney’s fees and costs.8California Civil Rights Department. Employment Because cannabis discrimination is now a FEHA violation, enforcement works the same way it does for any other protected characteristic in California.