Colorado: Underage DUI

The drinking age in Colorado is 21 and consumption of alcohol by anyone under 21 is illegal with the following exceptions:

  • on private, non alcohol-selling premises, with consent of a legal guardian  -- for example, with legal guardian’s permission at a party
  • for religious purposes – for example, drinking wine with religious ceremony.
  • for medical purposes – for example, a physician administering a medical treatment
  • for educational purposes – for example, studying at a culinary school, or
  • under age drinking is not penalized if the underage drinker is calling to report a medical emergency affecting another underage drinker. 

Because underage drinkers cause a disproportionate number of alcohol-related auto fatalities, the standards are stricter and the penalties may be harsher for those under 21.

To learn more, see Colorado’s teen driving requirements.

What constitutes driving under the influence?

If a chemical test determines that a driver under 21 has a BAC of .02% or higher, the driver can be cited for driving under the influence. (For those 21 or older, the BAC is .08% for a DUI and .05% for a DWAI (driving while ability impaired)).

What are the penalties?

If First Drunk Driving Conviction: If under 21, and BAC is .02 to .05% a first offense automatically triggers a 3 month license suspension, as well as additional penalties and fines and community service. Above .05% triggers typical adult consequences of imprisonment (5 days to 1 year), fine ($600 to $1,000), license suspension (9 months)(more information: First Offense DUI in Colorado).

If Second Drunk Driving Conviction within YY Years: If under 21, and BAC is .02 to .05% a first offense automatically triggers a 6 month license suspension, as well as penalties and fines and community service. Above .05% triggers typical adult consequences including imprisonment (48 hours to six months jail), fine ($1,100 up to $1,500) license suspension (1 year). (More Information: Second Offense DUI in Colorado.)

What if you refuse the chemical test? Read about Colorado implied consent laws.

What other charges?

In addition to driving under the influence, an underage drinker may be charged with any of the following:

  • distributing alcohol to other minors (were there underage drunk passengers?),
  • minor in possession,
  • soliciting alcohol,
  • child endangerment law violations,
  • possession of false identification (was a fake id used to purchase alcohol?), and
  • moving and vehicle maintenance violations (what else did the arresting officer see?). 

What happens to insurance?

Some insurance companies may terminate a policy after an underage DUI (while others refuse to renew). Most companies simply raise the cost of the monthly premium by $100 to $200 (sometimes higher) for a higher risk policy. The raise usually stays in place for three to five years. You’ll also probably need to furnish the DMV with an SR-22 certificate to reinstate a license after suspension (as proof of insurability). Most insurance companies furnish this form to the DMV. Check with your insurer to see if it performs this service.

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