Utah DMV Practice Test 2025

The Driver License Division, within the Utah Department of Public Safety (DPS), administers all driver licensing and testing in Utah. It is sometimes informally called the 'Utah DMV' but is technically the Driver License Division. Vehicle registration, titles, and related services are handled separately by the Utah Division of Motor Vehicles, which is a different agency. Driver License Division offices are located throughout the state, with major offices in Salt Lake City, Ogden, Provo, and other cities.

Utah's Legislature passed HB 155 in 2017, lowering the DUI BAC threshold from 0.08% to 0.05% effective December 30, 2018. Proponents argued that the World Health Organization recommends 0.05% as the standard, that most impairment studies show driving ability is compromised at 0.05%, and that the law would reduce traffic fatalities. Utah was the first U.S. state to adopt 0.05%, making it the lowest DUI threshold in the nation. The law generated national attention and debate about whether other states should follow Utah's lead.

Utah's Graduated Driver License (GDL) program begins with an instruction permit at age 15. Permit holders must drive with a licensed adult 21+ at all times and complete at least 40 hours of supervised driving (10+ hours at night). A restricted license (Stage 2) is available after 6 months with the permit and meeting all driving requirements. Stage 2 restrictions include no driving between midnight and 5 AM, and limitations on non-family passengers under 18. A full unrestricted license is available at age 17 after completing all Stage 2 requirements.

Parley's Canyon on I-80 east of Salt Lake City descends on a sustained 6% grade into the Salt Lake Valley. This grade is steep enough to cause brake fade and brake failure on vehicles — particularly trucks, RVs, and vehicles towing trailers — if drivers continuously apply the brakes rather than using engine braking. In winter, ice, snow, and chain control create additional hazards. A runaway truck ramp is available on the descent for vehicles that lose brake control. UDOT frequently enforces chain control requirements and occasionally closes the canyon during severe winter storms.

Utah uses the term 'DUI' (Driving Under the Influence) for the 0.05% BAC offense. There is no separate 'DWAI' (Driving While Ability Impaired) category as some states have — in Utah, 0.05% is the DUI threshold itself, not a lesser offense. Driving Under the Influence of drugs (including prescription medications that impair driving) is also illegal in Utah regardless of BAC. A DUI conviction in Utah carries mandatory license suspension, fines, possible jail time, and for many offenses, an ignition interlock device requirement.

Yes. Utah prohibits handheld mobile device use while driving. The law bans holding a phone for any purpose while operating a vehicle, including at red lights and stop signs. Hands-free use via Bluetooth headsets or vehicle-integrated systems is permitted. Violations are primary offenses. Utah also has strict distracted driving laws that allow additional charges if distraction contributed to an accident — Utah's 'Reckless Driving Due to Distraction' statute can upgrade a distracted driving accident to a more serious charge.

Utah has numerous canyon roads used for both commuting and recreation, including Parley's Canyon (I-80), Provo Canyon (US-189), Spanish Fork Canyon (US-6), Logan Canyon (US-89), and others. Canyon driving rules include: check brakes before descending steep grades, use engine braking (lower gears) on long descents rather than continuous brake application, follow chain control requirements in winter, watch for rocks and debris on the road, and observe speed limits (canyon roads have lower limits than open highways). During extreme weather, UDOT can close canyon roads entirely.

The Great Salt Lake and its surrounding area west of Salt Lake City create unique driving conditions on I-80 and nearby roads. When lake levels are high, adjacent roads can experience flooding — the flat terrain means water can spread widely and appear shallower than it is. Never drive through flooded road sections in this area. The Bonneville Salt Flats surface (used for land speed records) has different traction properties from asphalt. I-80 through this area also experiences strong crosswinds and reduced visibility from blowing salt and dust during windy conditions.

Utah's knowledge test has 50 questions — significantly more than most states, which typically use 20–25 question tests. A passing score of 80% (40/50 correct) is required. The longer test reflects Utah's emphasis on thorough driver education. The test covers all standard topics (traffic laws, road signs, safe driving) plus Utah-specific material: the 0.05% DUI threshold, canyon and mountain driving rules, Parley's Canyon chain control, Great Salt Lake area conditions, and the state's hands-free law. The Utah Driver Handbook should be studied completely before taking the test.

Utah's DUI law covers impairment from any substance — including prescription medications. A driver who is impaired by a prescription medication can be charged with DUI in Utah even if their BAC is 0.00% and they took the medication as prescribed. Utah has specific DUI provisions for controlled substance impairment that do not require a BAC test result — impairment is determined through field sobriety tests and Drug Recognition Expert (DRE) evaluation. Utah drivers taking any medication that may affect driving should consult their physician about whether it is safe to drive while taking it.