Quick answer
Marijuana in Michigan: Recreational + medical legal. Michigan legalized adult-use marijuana in 2018, with retail sales beginning in 2019. Adults 21 and older may possess up to 2.5 ounces and grow up to 12 plants at home. State law provides some off-duty employment protections while preserving testing in safety-sensitive roles.
Key facts
- Recreational marijuana legal since 2018.
- Medical marijuana legal since 2008.
- Adults may typically possess up to 2.5 oz.
- Home cultivation permitted.
Workplace testing
Michigan restricts adverse employment action based solely on off-duty cannabis use, but employers can still test and act for safety-sensitive positions or when impairment is shown. A medical card does not provide blanket protection from testing.
Michigan law protects employees from adverse action based solely on off-duty cannabis use, but employers may still restrict use in safety-sensitive roles and enforce workplace policies.
Detection & panels
See how long substances stay detectable in our detection chart, compare standard panels, or use the test finder. Local testing locations in Michigan are listed on the Michigan drug testing page.
Frequently asked questions
Is marijuana legal in Michigan?
Michigan status: Recreational + medical legal. Michigan legalized adult-use marijuana in 2018, with retail sales beginning in 2019. Adults 21 and older may possess up to 2.5 ounces and grow up to 12 plants at home. State law provides some off-duty employment protections while preserving testing in safety-sensitive roles.
Can an employer in Michigan drug test me?
Michigan restricts adverse employment action based solely on off-duty cannabis use, but employers can still test and act for safety-sensitive positions or when impairment is shown. A medical card does not provide blanket protection from testing.
Does a medical card protect me from testing in Michigan?
Michigan law protects employees from adverse action based solely on off-duty cannabis use, but employers may still restrict use in safety-sensitive roles and enforce workplace policies.