Traveling to Colorado, or do you live there and still don’t get the laws? We feel your pain, so we searched the web for you and pulled together the cannabis laws for consumers in Colorado. 

Please note that laws are consistently changing and although we work hard to keep this information as up to date as possible we suggest checking with the state’s government site as well.

The Basics

The Need to Know


Adults 21 years of age or older are allowed to possess up to one ounce (28 grams) of THC including but not limited to flower, concentrates, edibles, etc. 

Purchasing Limits

You can legally purchase one ounce, or less than 28.35 grams of flower (dried cannabis), 8 grams of concentrate, and 800mg of edibles. 


You can legally consume cannabis on private property out of view from the public. There are bring-your-own cannabis lounges and private cannabis clubs slowly opening up around Colorado thanks to initiative 300.

It is not allowed to consume cannabis on any federal or public land. Being caught consuming in public could result in tickets and fines.


Adults are allowed to legally possess up to six cannabis plants, up to three can be in the flowering stage. All plants must be in a locked space.

Driving Under the Influence

Colorado’s DUI law states the legal driving limit is 5 nanograms per milliliter of blood of active THC in your system. If you are found guilty of driving under the influence of cannabis you will face DUI charges and penalties.

Transporting Marijuana

It is illegal to transport cannabis in the passenger area of a vehicle if the container has a broken seals, or if there is evidence of consumption. To be safe keep your cannabis well sealed and in the trunk. 


Exporting Marijuana

Moving cannabis across state lines is illegal and can result in a steep penalty if you’re caught. 

It is also illegal to ship or send it in the mail.

Traveling by Plane

Cannabis is still illegal on the federal level so it is always a risk if you decide to fly with it. 


You can use your medical card in another state if that state has medical marijuana reciprocity.

If you are a non-resident and have a valid driver’s license or state/federal ID you can legally purchase cannabis. 

Medical Marijuana

Qualifying Conditions:

    • Cancer
    • Glaucoma
    • HIV or AIDS
    • Cachexia
    • Persistent muscle spasms
    • Seizures
    • Severe nausea
    • Severe pain
    • PTSD

Get Your Medical Marijuana Card

Not sure how to get your Medical Marijuana Card? We’ve partnered with Veriheal to bring you a simple and seamless way to see if you qualify and chat with a doctor right from the comfort of your own home.

Additional Resources

Looking for more?

Check out Colorado’s government site.

Want to learn more about the cannabis laws in other states? Click here to find out more.