Hawaii DMV Practice Test 2025

Hawaii driver licensing is administered by the Hawaii Department of Transportation (DOT), Highways Division, but the actual licensing offices are operated at the county level: the City and County of Honolulu on Oahu, Maui County (serving Maui, Molokai, and Lanai), Hawaii County (serving the Big Island), and Kauai County. Each county has its own licensing office locations. This county-based system means that residents on different islands obtain their licenses from different county offices, all under state DOT authority.

The Hawaii driver's license knowledge test consists of 30 multiple-choice questions. You must correctly answer at least 24 questions — an 80% passing score — to pass. The test is based on the Hawaii Driver's Manual and covers traffic laws, road signs, safe driving practices, and Hawaii-specific hazards including volcanic activity, tsunami evacuation, and vog conditions. The test is available at county licensing offices on each island.

OVUII stands for Operating a Vehicle Under the Influence of an Intoxicant — Hawaii's legal term for impaired driving (what most states call DUI or DWI). The adult BAC threshold is 0.08% under Hawaii Revised Statutes § 291E-61. For drivers under 21, the limit is 0.02% — any measurable BAC at or above this level is an OVUII violation. A BAC of 0.15% or higher triggers enhanced aggravated OVUII penalties, including mandatory ignition interlock on a first conviction. Hawaii OVUII penalties include mandatory license revocation, fines, possible jail time, and mandatory substance abuse assessment. OVUII is the official legal designation — no other U.S. state uses this specific term.

If a lava flow threatens a road, Hawaii County Civil Defense issues road closure orders and evacuation orders. Drivers must comply with all closure signs and barricades — driving into a lava flow area is extremely dangerous and may be illegal under an active civil defense emergency order. Roads may be closed with no warning when a flow crosses or threatens the roadway. Drivers should monitor Hawaii County Civil Defense alerts and Hawaii Emergency Management Agency (HI-EMA) notifications when traveling on Hawaii Island during active eruption periods.

Hawaii's tsunami evacuation routes are marked by distinctive blue signs with a wave symbol, located throughout coastal areas on all major Hawaiian islands. These routes lead away from the coast and toward higher elevation. When a tsunami warning is issued by the Pacific Tsunami Warning Center (PTWC), drivers should immediately use these marked routes to move away from all coastal and low-lying areas. The Pacific Ocean is capable of generating tsunamis that arrive in Hawaii with relatively short warning times, so immediate action when a warning is issued is critical.

Yes. Oahu has the most urban traffic with significant congestion on H-1 in the Honolulu metro area and on the Pali Highway near the Ko'olau summit. Hawaii Island (Big Island) has volcanic hazards including lava flow road closures and vog, as well as basalt road surfaces that become slippery when wet. Maui has the Hana Highway — a narrow, winding road with over 600 curves and numerous one-lane bridges. Kauai has Na Pali Coast roads that end at trailheads requiring turning around. Each island's road network is completely separate with no connections between islands.

Hawaii's Graduated Driver License (GDL) system has three stages. Phase 1 (Learner's Permit): available at age 15½; requires a licensed supervisor 21+ at all times (parent/guardian only between 11 p.m. and 5 a.m.); requires 50 supervised hours (at least 10 at night). Phase 2 (Provisional License): available at age 16 after holding Phase 1 for at least 180 days; restricts passengers (max 1 under-18 unless parent/guardian present) and nighttime driving (11 p.m.–5 a.m., with exceptions for documented work or school). Phase 3 (Full License): available at age 17 after holding Phase 2 for at least 6 months.

Vog (volcanic smog) is a type of air pollution created when sulfur dioxide emissions from Kilauea's active vents react with oxygen and moisture in the air. It appears as a brownish or grayish haze and can significantly reduce visibility, particularly on Hawaii Island. Vog is most concentrated in areas downwind of Kilauea and can be worse in the Kona district (on the leeward side of the Big Island) during Kona wind conditions. Hawaii Emergency Management Agency issues vog advisories. In heavy vog, drivers should use headlights, reduce speed, and increase following distance.

No. There are no roads or bridges connecting the Hawaiian islands to each other or to the continental United States. Each island's road network is completely self-contained. To transport a vehicle between islands, you must use a cargo ship service. Matson Navigation handles most inter-island vehicle shipping, and Young Brothers handles cargo to smaller ports. Roll-on/roll-off ferry options have also been available between some islands. Vehicle transport between islands requires scheduling in advance and incurs shipping costs.

Hawaii issues driver's instruction permits at age 15½ years old (HRS § 286-102.6). The permit is obtained through the county licensing office serving the island where the applicant resides. After obtaining the permit, the holder must complete at least 50 supervised hours (minimum 10 at night) and hold the permit for at least 180 days before being eligible for a Phase 2 Provisional License at age 16. If you fail the knowledge test, Hawaii requires a 30-day wait before retesting — one of the strictest retest policies in the U.S.