Quick answer
Marijuana in Wisconsin: prohibited. Wisconsin has no medical or adult-use cannabis program; marijuana remains fully illegal under state law as of 2026. Employers may still enforce drug-free workplace policies and test employees.
Workplace testing
Wisconsin allows workplace drug testing and employers may act on positive results. Marijuana is fully illegal under state law, so there is no medical-card protection from testing.
Wisconsin does not protect off-duty cannabis use in employment; employers may still enforce drug-free workplace policies and test under state law.
Detection & panels
See how long substances stay detectable in our detection chart, compare standard panels, or use the test finder. Local testing locations in Wisconsin are listed on the Wisconsin drug testing page.
Frequently asked questions
Is marijuana legal in Wisconsin?
Wisconsin status: prohibited. Wisconsin has no medical or adult-use cannabis program; marijuana remains fully illegal under state law as of 2026. Employers may still enforce drug-free workplace policies and test employees.
Can an employer in Wisconsin drug test me?
Wisconsin allows workplace drug testing and employers may act on positive results. Marijuana is fully illegal under state law, so there is no medical-card protection from testing.
Does a medical card protect me from testing in Wisconsin?
Wisconsin does not protect off-duty cannabis use in employment; employers may still enforce drug-free workplace policies and test under state law.