Montana DMV Practice Test 2025

The Montana MVD knowledge test covers material from the Montana Driver Manual, including traffic laws, road signs, speed limits, DUI law, implied consent, the GDL program, seat belt and child restraint requirements, school bus laws, headlight rules, and right-of-way rules. The test is required before receiving a Learner License.

Montana sets the following BAC limits: 0.08% for adult drivers 21 and older (per se DUI under MCA 61-8-1002); 0.02% for drivers under 21; and 0.04% for CDL holders operating commercial vehicles. Montana uses DUI terminology rather than DWI or OUI.

Montana uses a three-step GDL system. Step 1 (Learner License): minimum age 15 with driver ed or 16 without; requires 50 supervised hours (10 at night) and a 6-month hold. Step 2 (Restricted License): 11 PM to 5 AM curfew; during the first 6 months, only one unrelated passenger under 18 is permitted; during the second 6 months, up to three. Step 3: Full License with no passenger or curfew restrictions.

Under Montana's implied consent law, refusing a chemical test when lawfully arrested for DUI can result in an administrative license suspension of up to one year for a first refusal. This suspension is separate from any criminal DUI penalties and takes effect even if you are not ultimately convicted of DUI.

Montana's statutory speed limits: Interstate highways — 80 mph daytime, 75 mph nighttime for passenger cars; Two-lane highways — 70 mph daytime, 65 mph nighttime; School zones — as low as 15 mph when children are present (fines doubled). Always obey posted signs, which may set lower limits on specific roads.

Montana requires a child to be secured in an approved child restraint system when the child is BOTH under age 6 AND weighs under 60 pounds. Both conditions must be true simultaneously — if the child has turned 6 or has reached 60 lbs, a regular seat belt may be used instead. This dual-condition rule is commonly tested on the Montana knowledge exam.

Montana law requires the driver and all front-seat passengers to wear seat belts. GDL drivers must ensure all occupants anywhere in the vehicle are buckled. The fine for a seat belt violation is $20.

When a school bus is stopped with red lights flashing, Montana drivers must stop at least 30 feet from the bus and wait until the red lights stop flashing and the stop arm is retracted before proceeding. On a divided highway with a physical median barrier, only vehicles in lanes directly behind the bus must stop.

Montana requires headlights from one-half hour after sunset to one-half hour before sunrise, and whenever visibility is less than 500 feet due to weather or other conditions. High beams must be dimmed when within 1,000 feet of oncoming traffic or when following another vehicle within 500 feet.

Montana's move-over law requires drivers to move over one lane away from a stopped emergency vehicle when safe to do so on a multi-lane road. If moving over is not possible, you must slow to at least 20 mph below the posted speed limit while passing the stopped emergency vehicle.