Recreational FAQ – know the cannabis law in Colorado:


  • You must be 21 or older to have or use retail (recreational) marijuana.
  • It is illegal to give or sell marijuana to minors.
  • It is illegal to drive high.
  • It is illegal to consume marijuana in public.
  • It is illegal to take marijuana (in any form!) out of the state.
  • Only licensed establishments may sell retail marijuana products.

Frequently Asked Questions:

What is the difference between medical and retail marijuana?
Only licensed retail marijuana stores may sell retail marijuana, and only to those 21 and older.

Medical marijuana requires a state medical card, which can only be obtained by Colorado residents with a recommendation from a doctor that a patient suffers from a debilitating medical condition that may benefit from medical marijuana. Medical marijuana patients can obtain marijuana from a licensed center, a primary caregiver or self-grow. For more information about medical marijuana, please visit the Colorado Department of Public Health and the Environment.

How much marijuana can I purchase at one time?
Any adult 21+ with valid ID can purchase up to 1 ounce of retail marijuana at a time. Per Colorado law: an ounce of flower is equal to 8 grams of concentrate or 800 mg (THC) of edibles.

Where am I allowed to possess or consume retail marijuana?
Since Amendment 64 went into effect in late 2012, adults 21 and older have been allowed to possess up to 1 ounce of retail marijuana. Retail marijuana is intended for private, personal use. Such use is only legal in certain locations not open or accessible to the public. Marijuana may not be consumed openly or publicly. This includes but is not limited to areas accessible to the public such as transportation facilities, schools, amusement/sporting/music venues, parks, playgrounds, sidewalks and roads and outdoor and rooftop cafes. It is also illegal to smoke at indoor-but-public locations like bars, restaurants and common areas in buildings.

Marijuana may be carried in cars but it may not be in an open container and cannot cross state boundaries. It is illegal to use or consume marijuana in a motor vehicle and it is illegal to drive under the influence of marijuana. It is illegal to drive under the influence of marijuana and it can result in a DUI, just like alcohol. Anyone with 5 nanograms or more of delta 9-tetrahydrocannabinol (known as THC) per milliliter in whole blood (CRS 42-4-1301) while driving can be arrested for DUI. The consequences of DUI is dependent on the driver but they can include fines, jail time and a revoked license.

Repeat: It is illegal to take marijuana across state lines. DIA prohibits possession, use, display, and transfer of all marijuana on its property.

For more information, please visit the State of Colorado website or