If you see a driver weaving across lanes, running red lights, or driving erratically on a Utah road, call 911 immediately. That is how to report a drunk driver in Utah when the danger is happening in real time: treat it as an active emergency and give dispatch the vehicle's location, direction of travel, make, model, color, and license plate number if you can safely see it.
This guide is for Utah drivers, passengers, residents, and anyone affected by a suspected impaired driver or a drunk driving crash who needs a clear next step. It explains how to recognize the warning signs of impaired driving, who to contact and when to call 911 versus a non-emergency line, what information helps officers locate the vehicle, how to report safely, and what to do if a drunk driver hits you.
Utah’s legal blood alcohol limit is 0.05 percent for drivers 21 and older, the lowest standard in the nation. Even with strict laws, alcohol-related crashes remain a serious public safety issue. According to the Utah Highway Safety Office, there were approximately 4,408 alcohol-related crashes and 274 fatalities between State Fiscal Years 2020 and 2024. Alcohol-involved crashes are over 15 times more likely to be fatal than other crashes, which is why fast, accurate reporting can help prevent serious injuries and save lives.
Under Utah Code section 41-6a-502, a person commits driving under the influence when operating or being in actual physical control of a vehicle while impaired by alcohol, drugs, or a combination to a degree that makes safe operation impossible. The statute also applies on a “per se” basis: a blood or breath alcohol concentration of 0.05 percent or greater at the time of a chemical test is sufficient for a DUI charge, regardless of whether the driver appeared impaired.
Special categories face even stricter limits. Commercial drivers are held to a 0.04 percent BAC threshold under Utah Code section 53-3-418. Utah has a zero-tolerance policy for underage drinking and driving, meaning any measurable alcohol in the system of a driver younger than 21 can result in penalties.
DUI penalties increase with each subsequent offense in Utah. A first-time DUI offense is a Class B misdemeanor, and first-time DUI offenders may face up to 48 hours in jail. Aggravating factors, such as having a passenger under 16 or prior convictions, can elevate the charge to a Class A misdemeanor or a third-degree felony. Drivers can lose their license for 120 days after a DUI conviction, according to the Utah Highway Safety Office.
Immediate reporting helps law enforcement intercept impaired drivers before a crash happens. Data from Utah’s 2024 DUI Annual Report, published by the Utah Commission on Criminal and Juvenile Justice, show that 82 percent of DUI arrests were “per se” violations. About 42 percent of arrested drivers had BAC levels above 0.15, more than three times the legal limit. Your awareness and willingness to act can save lives.
Impaired drivers may exhibit erratic behaviors like weaving or abrupt braking. Observing and reporting erratic driving behaviors is crucial for safety. Watch for these patterns:
Each of these behaviors creates immediate danger. Drifting can cause sideswipe or head-on collisions. Delayed reactions at signals put pedestrians and cross-traffic at serious risk. If you are aware of a vehicle displaying any combination of these signs, it is time to take action and report what you see.
Utah Code section 41-6a-502 covers two pathways to a DUI charge. The first is the per se standard: any driver at or above 0.05 percent BAC (or 0.04 percent for commercial drivers) can be charged based on the chemical test result alone. The second is the impairment standard: even if BAC falls below the legal limit, a driver can be charged if their driving behavior demonstrates they cannot safely operate the vehicle.
Utah also enforces an implied consent framework. Drivers are deemed to consent to chemical testing when lawfully arrested for DUI. Refusing a test carries separate penalties, including license suspension. People convicted of DUI may also be placed on an Alcohol-Restricted Driving status, which prohibits any alcohol in their system while driving for a period that can extend to ten years depending on the offense and prior record.
Reporting a suspect helps law enforcement enforce these laws and strengthens the complete process of holding impaired drivers accountable. Early intervention through reporting has a direct connection to crash prevention.
Do not attempt to stop or confront the driver yourself when reporting. Confrontations with impaired drivers are unpredictable and dangerous. Your priority is personal safety first, information gathering second.
A safe observation distance while reporting increases personal safety. Follow these steps:
Immediate driver reporting involves collecting key vehicle and behavior details, but never at the expense of your own safety or the safety of your passengers.
Call 911 for immediate threats. If the driver is swerving into oncoming traffic, driving the wrong way, or creating near-miss incidents, please call 911 without hesitation. Immediate threats on the road should be reported to the nearest agency via 911. Utah operates under the REDDI program (Report Every Drunk Driver Immediately) to streamline these reports.
Use non-emergency lines when the danger has passed. If you witnessed erratic driving but the vehicle has left the area or the situation is no longer an active emergency, certain non-emergency incidents may be eligible to file online. If the incident is not eligible for online reporting, contact local dispatch or the appropriate agency directly. You can also contact local dispatch. For example, in the Salt Lake City area, the Unified Police Department non-emergency line is 801-840-4000.
Highway Patrol versus local police. If on a state highway, contact the Highway Patrol, which has statewide jurisdiction on freeways and state routes. On city streets, the local police department or county sheriff’s office will respond. Reports must be within Salt Lake City jurisdiction for Salt Lake City police to respond. Otherwise, call the agency covering that area.
Detailed vehicle information helps law enforcement respond quicker. The more precise your info, the faster an officer can locate the car and make contact. Gather what you can safely, but do not take risks to get every detail.
Provide vehicle description including make, model, and license plate number when you call. Key details to have ready:
Even without a complete plate number, a strong vehicle description combined with location and direction gives officers enough to begin searching.
When speaking with dispatch, describe the specific dangerous actions you witnessed:
This information helps the officer build a clear picture of the incident and respond to the right area with appropriate urgency.
Reporting an impaired driver is not always straightforward. Here are solutions to the most common obstacles people face.
Focus on the vehicle description, location, and specific dangerous behaviors observed. Provide as much detail as possible about distinguishing features: body style (sedan, pickup, SUV), color, and any added modifications. A thorough description of a “red SUV with a dented rear bumper heading northbound on I-15 near mile marker 298” is actionable even without a plate number.
Report the last known location and direction of travel to help officers search the area. Describe the route taken and any landmarks or intersections where the vehicle was last seen. This information allows patrol units to triangulate a search and check likely routes. If the vehicle is gone by the time you report it, include a current email address so the agency can follow up if more information is needed.
Continue with your report even if others may be calling. Multiple perspectives help officers confirm the threat and pinpoint the vehicle. Mention to dispatch that other witnesses may also be reporting the same vehicle. Dispatchers are trained to cross-reference and will not treat added reports as redundant.
If an accident with a suspected impaired driver has already happened, your priorities shift to medical care and documentation.
Robert J. DeBry & Associates handles drunk driving accident claims and can review the details of your case. For more on immediate steps, see our guide on what to do if you get hit by a drunk driver. You can also find information about the drunk driving epidemic and statistics in Utah and learn more about understanding your rights after a car accident.
Reporting a suspected impaired driver is a straightforward action that can save lives. You do not need to be certain that a driver is intoxicated. If the driving behavior you see creates danger, that is enough reason to call.
For more information about reporting a suspected drunk driver or what to do after any car accident in Utah, contact Robert J. DeBry & Associates.
This is general information, not legal advice.