Illinois Marijuana Compliance
Illinois allows medical marijuana and recreational marijuana for adults 21 and older. Recreational possession became legal on January 1, 2020. Consumers do not need a transportation license to carry legally possessed cannabis, but vehicle-storage rules apply.
Legalization does not prevent employers from maintaining reasonable, nondiscriminatory drug-free workplace and testing policies. Employers may prohibit marijuana use and impairment at work, while employees disciplined for alleged impairment must have a reasonable opportunity to challenge that determination.
Register for a drug test online by clicking the "Register Now" button below. You can also call (888) 378-2499 with any questions about our drug testing services.
This Information Is Not Intended for Legal Purposes
The information provided on this page is intended for your own knowledge, and should not be used for legal matters. Since marijuana testing regulations can vary, we advise you to seek the guidance of expert legal counsel when creating your company's substance abuse screening program.
Illinois Marijuana Compliance
Illinois Marijuana Laws
Overall Status: Fully Legal
Illinois permits medical marijuana for registered qualifying patients and recreational marijuana for adults 21 and older. The Cannabis Regulation and Tax Act passed in 2019, with legal adult-use possession and retail sales beginning January 1, 2020. Possession and use remain subject to state restrictions.
Medical Marijuana: Legal
Illinois was the 20th state to develop a medical marijuana program and legalized medical marijuana for medicinal use in 2013. Illinois residents that meet certain requirements may obtain medical marijuana cards.
Decriminalized: Yes
Illinois allows adult possession within legal limits. When possession is not otherwise authorized, 10 grams or less of cannabis is generally a civil violation carrying a $100 to $200 fine rather than a criminal offense. Special rules apply to minors.
Recreational Marijuana: Legal
Adults 21 and older may possess cannabis within Illinois's adult-use limits. Residents may possess up to 30 grams of flower, 5 grams of concentrate, and cannabis-infused products containing up to 500 milligrams of THC. Nonresidents may possess half those amounts: 15 grams of flower, 2.5 grams of concentrate, and 250 milligrams of THC in infused products. These limits are cumulative.
Under Illinois's employment rules, employers may enforce reasonable, nondiscriminatory workplace drug policies, including testing and employment action for a failed test. If discipline is based on alleged impairment, the employer must identify specific symptoms affecting job performance and give the employee a reasonable opportunity to challenge the determination. Other legal protections still apply.
Last updated 11/3/2026
Frequently Asked Questions
What is Illinois' history with marijuana?
Illinois authorized its medical cannabis program in 2013. The state passed the Cannabis Regulation and Tax Act in 2019, allowing recreational possession and retail sales for adults 21 and older beginning January 1, 2020.
What is the punishment for possession in Illinois?
Adults 21 and older can legally have up to 30 grams of marijuana flower if they live in Illinois, or up to 15 grams if they're visiting from another state. Marijuana concentrates and marijuana-infused products have their own limits, and medical marijuana patients may be allowed to have more.
Above those limits, the penalties go up with the amount. More than 30 grams and up to 100 grams of marijuana is a Class A misdemeanor the first time, and a Class 4 felony after that. More than 100 grams and up to 500 grams is a Class 4 felony, and more than 500 grams and up to 2,000 grams is a Class 3 felony. Jail time isn't automatic. The sentence depends on the charge and what happened.
Is marijuana legal in Illinois?
Yes. Illinois allows recreational marijuana for adults 21 and older, and medical marijuana for registered patients. Recreational marijuana has been legal since January 1, 2020.
You don't need a special license to drive with marijuana in Illinois, but there are rules. Marijuana in a car has to be in a sealed or resealable, odor-proof, child-resistant container that the driver can't reach. The driver can't use marijuana anywhere in the car's passenger area.
Drug Tests That Exclude Marijuana
Urine Drug Panels That Do Not Include Marijuana Testing
Some of the popular drug tests that remove THC from the panel of drugs being tested are listed below:
Also try taking a look at our comprehensive list of urine drug panels that exclude marijuana. Drug tests that do not include marijuana testing can be found under the "Exclude Marijuana" section.
Hair Drug Tests That Do Not Include Marijuana Testing
To remove marijuana testing from a hair test, try one of our two popular hair tests:
For a complete list of our hair drug tests, take a look at our comprehensive list of hair tests.
Drug Panels That Include Marijuana
Urine Drug Tests That Include THC Testing
If marijuana testing is needed, the below urine drug panels include testing for THC:
For a complete list of urine drug panels that we offer, view our urine drug panels here.
Hair Drug Panels That Include Marijuana Testing
The following are hair drug tests that include testing for THC:
A comprehensive list of the hair drug panels that we offer can be found here.