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DUI

Understanding the Difference Between DUI, DWAI, and DUID in Colorado

Jason Savela7 min read

Colorado has three distinct impaired driving charges, each with different thresholds and consequences. Understanding the distinction matters from the moment you are stopped.

Colorado distinguishes between three levels of impaired driving offense: Driving Under the Influence (DUI), Driving While Ability Impaired (DWAI), and Driving Under the Influence of Drugs (DUID). Each carries different legal thresholds, penalties, and defense considerations.

A DUI charge requires that alcohol has rendered you substantially incapable of safely operating a vehicle. The legal per se limit is a blood alcohol concentration (BAC) of 0.08% or higher. At or above that level, the prosecution does not need to prove impairment — the BAC reading itself establishes the offense.

DWAI is a lesser offense but still carries serious consequences. It applies when alcohol has affected you to the slightest degree — even if you are not substantially impaired. The threshold is a BAC between 0.05% and 0.079%. A first DWAI conviction carries up to 180 days in jail, fines, and license points.

DUID applies when the impairing substance is a drug rather than alcohol — including marijuana, prescription medications, and controlled substances. Colorado has a permissible inference of impairment at 5 nanograms of THC per milliliter of blood, though unlike alcohol, this is not a per se limit. The prosecution must still prove impairment in most DUID cases.

One of the most important and time-sensitive aspects of any DUI arrest in Colorado is the DMV hearing. You have only seven days from the date of your arrest to request a hearing to contest the administrative suspension of your license. Missing that window results in an automatic suspension regardless of the outcome of your criminal case.

Defenses in DUI cases are more available than many people realize. The legality of the traffic stop, the administration and calibration of the breathalyzer, the chain of custody for blood samples, and the officer's observations are all subject to challenge. An experienced Colorado DUI attorney can identify weaknesses in the prosecution's case that are not obvious to someone without legal training.

Legal Disclaimer: This article is provided for general informational purposes only and does not constitute legal advice. Reading this article does not create an attorney-client relationship. Every legal situation is unique. If you have questions about your specific circumstances, contact The Savela Law Firm, P.C. directly.

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