Updated on May 5, 2020. Medical content reviewed by Dr. Joseph Rosado, MD, M.B.A, Chief Medical Officer
On August 1, 2013, Illinois launched a medical marijuana law called The Compassionate Use of Medical Cannabis Pilot Program Act. In 2014, the governor and legislature improved the law by adding a qualifying condition — seizures — and by making it possible for minors to qualify.
The law allows physicians to recommend the therapeutic use of medical marijuana to patients who are under their doctors’ care for at least one of the 34 qualifying medical conditions. Qualifying patients who receive a written certification may register with the state Department of Public Health for legal status as a medical marijuana patient.
The law allows Illinois residents age 21 and over to purchase up to one ounce of flower (dried herb) and up to five grams of cannabis concentrate (such as hashish or tincture). Illinois visitors are able to possess half those amounts. The law allows adults to consume cannabis either in their homes or at certain approved establishments. Businesses and landlords have the right to refuse its use on their properties.
The recreational use of cannabis by adults is legal, including retail sales beginning on Jan. 1, 2020. The following covers Illinois’ current cannabis laws with summaries of provisions under these laws.
As of Jan. 1, 2020, the cultivation, trafficking, sale, or possession of a small amount of marijuana is legal in Illinois under the Cannabis Regulation and Tax Act. The state also allows the use of medical marijuana for eligible patients, who also are permitted to grow their own medicine. Non-medical users, however, may not cultivate their own cannabis.