Recreational (Comprehensive) and Medical (Comprehensive)

Important Dates

2000: Amendment 20 made limited amounts of medical cannabis legal for “persons suffering from debilitating conditions” such as cancer, seizures, severe pain, etc.
Amendment 64 passed and recreational marijuana became legal for anyone over the age of 21.
2014: Businesses selling recreational marijuana opened in Colorado.


Colorado has always been at the forefront of marijuana legalization and was one of the first areas anywhere in the world to allow the use of marijuana for any reason, medicinally (passed in 2000) or recreationally (passed in 2012). Currently, residents and non-residents in the state of Colorado can buy, grow and possess marijuana within certain limits.


Can I possess, buy or grow marijuana in Colorado?

Yes. If you are over the age of 21, you can possess up to 1 ounce of marijuana, purchase up to 28 grams (1 ounce) in a single transaction and cultivate up to 6 plants (3 of which can be in the flowering stage) in an enclosed and locked space.

Can I operate a vehicle while under the influence of marijuana in Colorado?

You can have marijuana in your car but it can’t be in an open container. The legal limit for driving under the influence of marijuana is 5 nanograms per milliliter of blood. Driving while over the legal limit can result in a DUI, fees, a suspended license and possible jail time. It’s best to err on the side of caution and not drive while under the influence.

How do I get a medical marijuana card in Colorado?

A medical marijuana card can be obtained with a written recommendation from a doctor stating that you suffer from a debilitating condition that may benefit from the use of marijuana. You will then fill out an application and pay a fee to receive your card.

Can I use marijuana in public in Colorado?

Unless allowed at the local level in the city you are in, recreational marijuana may not be used publically. It is permitted for personal, private use only.

Can I sell marijuana in Colorado?

If you are over the age of 21 and obtain the correct licenses, you are eligible to sell marijuana with certain limitations.


The information presented here should not be construed as legal advice. State and Federal laws are always subject to change. We aim to keep this page as updated as possible; however, for additional information regarding Colorado marijuana laws, please see the Colorado Government Marijuana website, Find Law and the National Conference of State Legislatures.