Wyoming DMV Practice Test 2025

Wyoming Department of Transportation (WYDOT) Driver Services administers all driver licensing, knowledge testing, and skills testing in Wyoming. Driver's license offices are located in cities and towns throughout the state. WYDOT also manages the state's 511 road condition system and oversees the statewide road sign and signal system. Vehicle registration and title services are typically handled at county clerk offices rather than WYDOT offices.

Wyoming's knowledge test consists of 25 multiple-choice questions drawn from the Wyoming Driver's License Study Guide. A passing score of 80% — at least 20 correct answers — is required. The test covers Wyoming traffic laws, road signs, and WY-specific topics including the I-80 wind restriction system, open range law, Yellowstone rules, and the WYDOT 511 system. If you fail, a waiting period applies before retaking.

WYDOT monitors wind speeds along I-80 continuously and activates restrictions through a tiered system. Level 1 is a Wind Advisory — conditions are dangerous but passable; reduce speed and be alert. Level 2 is a High-Profile Vehicle Restriction — any vehicle 6 feet or wider must immediately exit and wait. Level 3 is a Road Closure — all vehicles, including passenger cars, must exit immediately. Restrictions are communicated via WYDOT 511 (website, app, phone), variable message signs on the Interstate, and social media. The Elk Mountain area near milepost 255–270 is the most frequently restricted section.

Open range law applies throughout virtually all of Wyoming outside incorporated city and town limits. Livestock owners have no legal obligation to fence cattle, horses, and other animals away from public roads in open range territory. If a driver strikes livestock on a Wyoming highway in an open range area, the driver may bear financial liability for the animal's injury or death — not the rancher. This makes scanning for livestock on rural Wyoming roads, especially at dawn and dusk, both a safety practice and a legal necessity. Some areas may be 'fenced range' — check local signage.

Wyoming's GDL program has three stages. Stage 1 (Instruction Permit): available at age 15, requires a licensed driver 21+ in the vehicle, and mandates 50 hours of supervised driving (10+ hours at night). Stage 2 (Provisional License): available after 12 months with Stage 1 and meeting all requirements; restrictions include no driving between midnight and 5 AM and limits on passengers under 18 who are not family members. Stage 3 (Full Unrestricted License): available at age 17 after completing all Stage 2 requirements.

Yellowstone National Park in northwest Wyoming has specific driving rules: the primary speed limit is 25–45 mph on different road sections and is strictly enforced by park rangers; wildlife (bison, elk, bears, wolves) may be on roads and must not be disturbed or approached; vehicle height restrictions exist at some tunnels and narrow sections; bison traffic jams require complete stops and patience — never attempt to drive through a bison herd; parking is permitted only in designated pullouts; and the park uses a fee entry system. Park roads are maintained by the National Park Service, not WYDOT.

Snowy Range Pass on WY-130 crosses the Medicine Bow Mountains at an elevation of approximately 10,847 feet, connecting Laramie to Saratoga. It is a beautiful summer driving route but is closed annually from approximately November through late May due to snow and ice that makes the road impassable. The exact closure and opening dates vary each year based on weather conditions. Drivers must check WYDOT 511 for the current status before attempting the pass — arriving at the gate to find it closed means a long detour via the lower-elevation US-30 route through Rawlins.

Wyoming's I-80 blizzards can produce zero-visibility whiteout conditions within minutes. If you are caught in a blizzard on I-80, follow variable message sign directions and law enforcement instructions — exit at the directed location. If you are stranded before an exit, pull as far off the road as safely possible, activate hazard lights, and stay in your vehicle — do not attempt to walk for help in Wyoming blizzard conditions. Call 911 if you have cell service. Prepare by carrying an emergency kit: blankets, food, water, a flashlight, jumper cables, and a phone charger. Never stop in a travel lane.

Wyoming's DUI law sets the BAC threshold at 0.08% for adults 21+ and 0.02% for drivers under 21. Wyoming uses 'DUI' terminology. A first offense DUI penalty includes a 90-day license suspension, a fine of $750, mandatory alcohol assessment and education, and possible jail time of up to 6 months. A BAC of 0.15% or higher triggers a more serious charge with enhanced penalties. Wyoming's implied consent law means refusing a chemical test results in a 6-month license suspension for a first refusal. Repeat DUI offenders may face mandatory ignition interlock device installation.