Is Weed Legal in Colorado?

Is weed legal in Colorado?

Colorado allows both adult-use (recreational) and medical marijuana under state constitutional amendments and the Marijuana Code (Title 44, Article 10). The Marijuana Enforcement Division licenses and regulates retail and medical marijuana businesses; CDPHE runs the patient registry; the Department of Agriculture regulates hemp cultivation up to 0.3% THC. Hemp-derived CBD is legal.

Official sources Laws about cannabis use – State of Colorado 1 · Medical Marijuana Registry – CDPHE 2 · Marijuana Enforcement Division – Home (Colorado Dept. of Revenue) 6 · Colorado Hemp Program – Dept. of Agriculture 7 · SB23-271 Intoxicating Cannabinoid Hemp & Marijuana | Colorado General Assembly 8 · C.R.S. Title 44 (2024 official PDF, Colorado General Assembly OLLS) – § 44-10-601 3

Recreational (adult-use) cannabis

Colorado voters legalized adult-use marijuana in 2012 (Amendment 64), with retail sales beginning January 2014. Adults 21 and older may legally possess up to two ounces of marijuana and purchase it from licensed retail stores regulated by the Marijuana Enforcement Division. Retail marijuana is taxed separately from the general state sales tax.

Official sources Laws about cannabis use – State of Colorado 1 · Marijuana Enforcement Division – Home (Colorado Dept. of Revenue) 6

Medical marijuana program

Colorado's medical marijuana registry, created by Amendment 20 (2000) and run by CDPHE, lets patients with qualifying debilitating conditions such as cancer, HIV/AIDS, seizures, chronic pain, and PTSD obtain a registry card after a provider certification and a $52 application fee. A card for a debilitating condition is valid one year. Colorado does not recognize out-of-state patients.

How to get a medical marijuana card

Official sources Medical Marijuana Registry – CDPHE 2 · How to Apply for a Colorado Medical Marijuana Card – CDPHE 9 · Medical Marijuana Registry providers | Colorado Department of Public Health and Environment 10 · Medical cannabis – State of Colorado 11

Possession limits

Adults 21 and older may possess up to two ounces of marijuana flower or concentrate with no penalty; more triggers escalating petty-offense, misdemeanor, or felony charges based on weight.

Official source Laws about cannabis use – State of Colorado 1

Buying cannabis

Licensed retail marijuana stores may sell to any adult 21 or older with valid ID; licensed medical centers sell only to registered patients or their caregivers presenting a valid registry card. Retail sales are capped at 1 ounce of flower (or its equivalent, including concentrate) per transaction, with a separate cap of 8 grams of concentrate per person per day. Registered medical patients are capped at 2 ounces of flower, 8 grams of concentrate, or a combined 20,000 mg of THC in products per business day, unless a physician certifies a higher amount.

Official sources C.R.S. Title 44 (2024 official PDF, Colorado General Assembly OLLS) – § 44-10-601 3 · How to Apply for a Colorado Medical Marijuana Card – CDPHE 9

Growing cannabis at home

Adults 21 and older may grow up to six marijuana plants at home, no more than three mature, for personal use. No more than twelve plants total may be grown at one residential property regardless of the number of occupants, and the grow area must be enclosed and locked.

Official sources Home grow laws – State of Colorado 4 · C.R.S. Title 18 (2024 official PDF, Colorado General Assembly OLLS) – § 18-18-406 12

Penalties

Simple possession of two ounces or less carries no penalty for adults; larger amounts escalate from a $100 petty offense to misdemeanors and eventually felonies as weight rises, and sale, cultivation, and distribution follow a similar weight-tiered scale up to 32 years for the largest trafficking amounts. Driving with 5 ng/mL or more of THC in blood creates a permissible inference of impairment; DUI is a misdemeanor that becomes a felony after three prior convictions. Colorado allows expungement of past marijuana convictions for conduct that is now legal.

Official source C.R.S. Title 42 (2024 official PDF, Colorado General Assembly OLLS) – § 42-4-1301 5

Product rules: CBD, delta-8 and hemp

Colorado's licensed marijuana market sells flower, edibles, concentrates, tinctures, topicals, and vape products, subject to state testing, child-resistant packaging, and labeling requirements. Hemp products with no more than 0.3% THC are separately legal, and nonintoxicating hemp-derived CBD may be sold as an ordinary hemp product.

Federal hemp change: from December 11, 2026 the federal definition of hemp counts total THC, including THCA, and final hemp products with more than 0.4 mg of total THC per container are no longer hemp; products with cannabinoids the plant cannot naturally produce stop counting as hemp on November 12, 2026. What changes, state by state (P.L. 119-37 § 781; P.L. 119-103 § 2019).

Official sources C.R.S. Title 44 (2024 official PDF, Colorado General Assembly OLLS) – § 44-10-601 3 · Colorado Hemp Program – Dept. of Agriculture 7 · SB23-271 Intoxicating Cannabinoid Hemp & Marijuana | Colorado General Assembly 8 · Laws about cannabis use – State of Colorado 13

Cannabis taxes

Retail (recreational) marijuana is taxed with a 15% state excise tax on wholesale transfers from cultivation facilities plus a separate 15% state retail marijuana sales tax on consumer sales, and is exempt from the regular 2.9% state sales tax. Medical marijuana instead pays the regular 2.9% state sales tax. Local governments may add their own additional marijuana taxes. Colorado collected about $236.4 million in marijuana tax and fee revenue in 2025.

Official sources Marijuana Excise Tax – Colorado Department of Revenue 14 · Marijuana Sales Tax – Colorado Department of Revenue 15 · Marijuana Taxes – Colorado Dept. of Revenue, Taxation Division 16 · Marijuana Tax Revenue Reports – Colorado Dept. of Revenue 17

Cannabis business licensing

The Marijuana Enforcement Division, within the Department of Revenue, licenses cultivation, manufacturing, testing, and retail marijuana businesses. There is no statewide numeric cap on the number of retail licenses, but a city, county, or city and county may prohibit or further restrict marijuana businesses locally. Out-of-state and publicly traded investors may hold financial interests, but all natural persons with day-to-day operational control of the business must be Colorado residents.

Official sources Marijuana Enforcement Division – Home (Colorado Dept. of Revenue) 6 · C.R.S. Title 44 (2024 official PDF, Colorado General Assembly OLLS) – § 44-10-601 3 · Retail cannabis licensees – State of Colorado 18 · Marijuana Taxes – Colorado Dept. of Revenue, Taxation Division 16

Visiting Colorado?

• Buying as a visitor: Licensed retail marijuana stores may sell to any adult 21 or older with valid ID; licensed medical centers sell only to registered patients or their caregivers presenting a valid registry card.
• Out-of-state medical cards and visiting patients: Colorado does not recognize other states' medical marijuana cards; registry cards are issued only to Colorado residents and are valid only within Colorado.
• Federal land and airports: cannabis remains illegal in national parks and on other federal land even in states where it is legal, and TSA refers any illegal substance found at airport screening to law enforcement. Do not cross state lines with cannabis.

Official sources Medical cannabis – State of Colorado 11 · How to Apply for a Colorado Medical Marijuana Card – CDPHE 9 · C.R.S. Title 44 (2024 official PDF, Colorado General Assembly OLLS) – § 44-10-601 3 · National Park Service – Shenandoah: alcohol and marijuana policy 19 · TSA – What can I bring? Medical marijuana 20

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