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Date: 03/14/2026

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Cannabis legalization and expungement basics Guide

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Cannabis is legal in Illinois. Many arrests and convictions for cannabis can be expunged. Having a criminal record can make it harder to get a job, housing, and creates other barriers in your life. Clearing your record can remove barriers.

There are 3 groups with different rules for clearing your record: 

  • You are in group 1 if you were arrested for minor cannabis offenses. You may qualify for automatic expungement of your arrest record if you fall in this group. Clear a group 1 cannabis arrest. 
  • You are in group 2 if you were convicted of minor cannabis offenses. You may qualify for automatic expungement, but the process is different. Clear a group 2 minor cannabis conviction. 
  • You are in group 3 if you were convicted of certain possession and dealing charges, depending on the amount and when the conviction happened. You may be able to file a motion A request to the judge to make the court or a party in the case do something to expunge To physically remove someone's name from a legal record. your record if you fall in this group. Clear a group 3 cannabis conviction. 

If you have cannabis arrests and convictions in multiple groups, each is expunged differently based on the record-clearing group it falls under.

While cannabis is legal in Illinois, it can still impact many areas of one's life. Learn about:

  • Cannabis and housing law
  • Cannabis and immigration status
  • Cannabis and disability rights
  • Cannabis and employment

Find answers to common questions about cannabis use and expungement here, or select a question below.

Last full review by a subject matter expert
April 28, 2025
Last revised by staff
March 04, 2025

About our legal information

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Clear a "Group 1" cannabis arrest
Clear a "Group 2" minor cannabis conviction
Clear a "Group 3" cannabis conviction

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Cannabis use and expungement common questions
New Leaf Portal
How do you get medical cannabis?
Conditional cannabis dispensary licenses lottery
What do I need to work in a cannabis dispensary?

Worried about doing this on your own?  You may be able to get free legal help.

Apply Online

Take action

Clear a "Group 1" cannabis arrest
Clear a "Group 2" minor cannabis conviction
Clear a "Group 3" cannabis conviction

Learn more

Cannabis use and expungement common questions
New Leaf Portal
How do you get medical cannabis?
Conditional cannabis dispensary licenses lottery
What do I need to work in a cannabis dispensary?
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ILAO is a registered 501(c)(3) nonprofit organization. ILAO's tax identification number is 20-2917133.