7 things to know about Colorado's medical marijuana program

Colorado's Medical Marijuana Registry is run by the Colorado Department of Public Health and Environment under a 2000 constitutional amendment. A provider sees the patient in person, then submits a certification electronically to the registry. The patient finishes the online application and pays a $52 fee. Most complete applications are approved in one to three business days, and the card is downloaded rather than mailed. The state separates 'debilitating' conditions, which only MDs and DOs can certify, from 'disabling' conditions, which dentists and advanced practice providers can also certify. Patients aged 18 to 20 face extra requirements.

7 things to know

1. Telemedicine recommendations are prohibited; the visit must be in person in a clinical setting.
2. Complete online applications are usually approved in 1-3 business days.
3. The application fee is $52, and low-income applicants can request a waiver.
4. Cards are downloaded and printed or shown on a phone; online applicants don't get a mailed card.
5. New patients aged 18-20 need certifications from two providers at different practices every year.
6. Dentists and advanced practice providers can certify disabling conditions such as PTSD.
7. Adult-use cannabis is also legal for anyone 21 or older.

At a glance

• State fee: $52 (Fee waiver for households at or below 185% of the Federal Poverty Level (tax return required))
• Card lasts: 1 year (60 days to 1 year for some disabling conditions)
• Processing: 1-3 business days for complete online applications
• Patient limit: 2 ounces of usable marijuana (more if the provider documents medical need)
• Home grow: 6 plants (3 mature), or more if the provider recommends an extended plant count; local rules may limit cultivation
• Recreational sales: Legal for adults 21+
• First visit online: No — in person first

Sources

• CDPHE - Medical Marijuana Registry
• CDPHE - How to apply for a Colorado medical marijuana card
• CDPHE - Medical Marijuana Registry FAQ
• CDPHE - Medical Marijuana Registry Providers
• CDPHE - Medical Marijuana Registry Caregivers
• Colorado Legislative Council - Medical Marijuana: Colorado Law Summary

This guide is general information, not medical or legal advice. Laws change — confirm details with your state agency. State facts last checked October 7, 2026.