DUI vs. DWAI vs. UDD
What’s the Difference in Weld County?

If you've been charged with DUI, DWAI, or UDD, be smart, exercise your right to remain silent, and contact the O’Malley Law Office at 970-616-6009

If you’ve been pulled over in Greeley or elsewhere in Weld County and charged with an alcohol-related driving offense, you may be wondering why your charge is labeled DUI, DWAI, or UDD. These aren’t just different names for the same thing; they’re distinct offenses with different thresholds and different consequences.

Attorney for DUI (Driving Under the Influence) Charges in Greeley

DUI applies when a driver is substantially impaired by alcohol, drugs, or both. Colorado also has a related charge called “DUI per se,” which applies automatically when a driver’s blood alcohol content (BAC) is 0.08% or higher, regardless of how they were actually behaving behind the wheel. DUI is the most serious of the impaired driving charges and carries the harshest penalties, including potential jail time, higher fines, and license consequences.

Weld County DWAI (Driving While Ability Impaired) Lawyer

DWAI is a lesser included offense that applies when a driver’s ability to operate a vehicle is only slightly impaired. A BAC of more than 0.05% but less than 0.08% creates a presumption of DWAI. Because the required showing of impairment is lower than for DUI, prosecutors only need to prove that a driver’s abilities were affected “to the slightest degree.” Penalties for a first DWAI are generally less severe than for a first DUI, though it remains a criminal conviction.

UDD (Underage Drinking and Driving) in Milliken and Windsor

UDD is Colorado’s “zero tolerance” charge for drivers under 21. It applies when an underage driver’s BAC is between 0.02% and 0.05%. A first UDD offense is a civil class A traffic infraction rather than a crime, though it still comes with fines, community service, and license consequences. A second or later UDD offense is treated more seriously as a class 2 traffic misdemeanor. If an underage driver’s BAC reaches 0.05% or higher, they instead face standard DWAI or DUI charges just like an adult driver would.

Why the Distinction Matters

The category you’re charged under shapes everything from potential jail exposure to license consequences and long-term record impact. If you’ve been charged with DUI, DWAI, or UDD in Weld County, it’s important to speak with a local criminal defense attorney promptly to understand exactly what you’re facing.


If you or someone you love has been charged with DUI, DWAI, or UDD, be smart, exercise your right to remain silent, and contact the best criminal defense attorneys from the O’Malley Law Office at 970-616-6009 to schedule a free initial consultation. Together, we can protect your future.

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