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Colorado Medical Marijuana Registry Home Page

The Medical Marijuana Registry is a confidential, statewide program that allows patients with qualifying, debilitating medical conditions to receive a registry identification card for legal access to medical marijuana. Cards are available to Colorado residents and valid only in Colorado. 


We only issue registry identification cards and maintain the database of registered patients. For questions about medical marijuana centers or caregiver cultivation sites please visit the Marijuana Enforcement Division at the Department of Revenue for more information.   


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On March 28, 2014, we held a town hall meeting with medical marijuana stakeholders, at which time a procedure to establish medical necessity was introduced to address issues raised by the Office of the State Auditor. As a result of stakeholder input and the potential of conducting medical marijuana research on various topics, including dosing, CDPHE has modified its procedure on medical necessity. Notice was sent to all physicians active on the Registry detailing the changes in procedure effective April 30, 2014.

We appreciate the valuable feedback from more than 150 stakeholders who provided input through the town hall meeting, the Medical Marijuana Regsitry (MMR) blog, and directly to the Department’s physician review team by email and phone calls. Your feedback strengthens our ability to ensure a high-quality, effective statewide program for legal access to medical marijuana. If you have any questions about this change in our review process, please email physicianreview@state.co.us.
Effective February 1, 2014, the application fee is $15 . 
The Board of Health approved the Department's recommendation for a reduced fee at the December 18, 2013 meeting. Meeting minutes and details of the proposal are available on their website.
Our new blog provides an interactive opportunity for community partners to work collaboratively with the Registry to support Colorado citizens' needs for legal access to medical marijuana. Subscribe today to become part of the community discussion.


Effective July 1, 2011, Colorado Revised Statute 12-43.3-402. Medical marijuana center license rules were amended to allow Medical Marijuana Centers to accept copies of new applications as temporary proof of registry. To present application as proof of registration, the patient must provide the following:

    • A new application packet including the application and physician’s certification. Patients may not show renewal paperwork as proof of registry.
    • A certified mail return receipt with a mailing date no more than 35 days old.
    • A valid picture ID that matches the name on the application.

For more information, visit our Medical Marijuana Centers page.