Quick answer
Marijuana in Washington: Recreational + medical legal. Washington legalized adult-use marijuana in 2012, with retail sales beginning in 2014. Adults 21 and older may possess up to one ounce, but home cultivation is prohibited. Employers may still enforce drug-free workplace policies and test employees.
Key facts
- Recreational marijuana legal since 2012.
- Medical marijuana legal since 1998.
- Adults may typically possess up to 1 oz.
Workplace testing
Washington allows workplace drug testing and employers may act on positive results. State legalization does not override employer drug policies, and a medical card does not shield an employee from testing.
Washington does not broadly 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 Washington are listed on the Washington drug testing page.
Frequently asked questions
Is marijuana legal in Washington?
Washington status: Recreational + medical legal. Washington legalized adult-use marijuana in 2012, with retail sales beginning in 2014. Adults 21 and older may possess up to one ounce, but home cultivation is prohibited. Employers may still enforce drug-free workplace policies and test employees.
Can an employer in Washington drug test me?
Washington allows workplace drug testing and employers may act on positive results. State legalization does not override employer drug policies, and a medical card does not shield an employee from testing.
Does a medical card protect me from testing in Washington?
Washington does not broadly protect off-duty cannabis use in employment; employers may still enforce drug-free workplace policies and test under state law.