You need 70% to pass the New Mexico permit knowledge test; the official New Mexico sources we checked do not state a fixed question count. Official source. Page updated 2026-10-27.
Study this first
Key New Mexico DMV rules and numbers
These are key rules and numbers from the New Mexico handbook, a few per topic so they fit on one printed page. We favor rules that state a specific number. Every fact below comes from our free New Mexico DMV practice test question bank, which has 500 questions across 9 topics, checked against the New Mexico handbook (last verified 2026-09-07).
Speed limits
- The manual lists 75 mph as the maximum speed for rural interstate highways unless a different limit is posted. (Handbook, p. 12)
- The manual's speed table lists 15 mph within a school zone with a posted speed limit. (Handbook, p. 12)
- New Mexico's default maximum in business or residential areas is 30 mph unless posted otherwise. (Handbook, p. 12)
- The state table sets 55 mph as the default maximum on public highways unless a sign posts a different number. (Handbook, p. 12)
- Most tires in fair shape keep solid traction up to roughly 35 mph on a wet surface. (Handbook, p. 20)
Right of way
- School buses, taxis and other vehicles for hire carrying passengers, and trucks hauling explosives, gasoline, or other dangerous materials must stop at least 15 feet from a railroad crossing before proceeding. (Handbook, p. 6)
- School buses, taxis and other vehicles for hire that carry passengers, plus trucks hauling explosives, gasoline or other dangerous materials, must stop at least 15 feet before the tracks. (Handbook, p. 6)
- A pedestrian using a guide dog or carrying a white cane receives absolute right of way under the manual. (Handbook, p. 11)
- The normal rule is to stop for a school bus with flashing red lights, even when the bus is on the opposite side or at an approaching intersection. (Handbook, p. 12)
- At a four way stop, every driver must first make a complete stop. (Handbook, p. 11)
Alcohol and DUI
- The manual states that a person must be 21 years of age to buy alcohol, consume alcohol, or possess alcohol. (Handbook, p. 29)
- The manual says a driver under 21 can be arrested in New Mexico for a BAC of .02%. (Handbook, p. 29)
- The manual states that alcohol is involved in about 40% of the traffic crashes in which someone is killed. (Handbook, p. 28)
- The manual says alcohol goes from the stomach into the blood and reaches the brain in 20 to 40 minutes. (Handbook, p. 29)
- For a driver 21 or older, New Mexico's manual sets the arrest threshold at a blood alcohol content of .08 percent or more. (Handbook, p. 29)
Signals and markings
- The manual tells drivers to signal at least 100 feet before making a turn. (Handbook, p. 19)
- An HOV 3 designation means that at least three people must be in the vehicle to use that HOV lane during the posted restriction. (Handbook, p. 9)
- With a solid and dashed yellow line separating opposing traffic, the line on the driver's side controls that driver's pass. (Handbook, p. 8)
- A red arrow requires a stop and prohibits movement in the direction shown by the arrow. (Handbook, p. 4)
- A flashing yellow light calls for reduced speed and cautious progress through the intersection. (Handbook, p. 4)
Parking
- New Mexico prohibits parking within 30 feet of a traffic signal, stop sign, or yield sign. (Handbook, p. 13)
- New Mexico's no parking list includes within 50 feet of a railroad crossing, and parking on the tracks is banned outright. (Handbook, p. 13)
- The manual bans parking within 20 feet of a fire station driveway on the same side of the street, or within 75 feet of the driveway on the other side of the street. (Handbook, p. 13)
- New Mexico keeps parking at least 25 feet from a crosswalk at an intersection. (Handbook, p. 13)
- Parking is prohibited within 50 feet of a fire hydrant. (Handbook, p. 13)
Safe driving
- The manual estimates about 400 feet for a vehicle at 50 mph to react to something seen and bring the vehicle to a stop when tires, brakes, and pavement are good. (Handbook, p. 22)
- The manual says to use your low beams within 200 feet when following another vehicle or when in heavy traffic. (Handbook, p. 18)
- The New Mexico Department of Transportation explains that state law requires children younger than 7, or children who weigh less than 60 pounds, to ride in a child safety seat. (Handbook)
- These vehicles usually travel at 25 mph or less, which is why a driver should identify them early, reduce speed smoothly, or change lanes only when the path is clear. (Handbook, p. 22)
- With only about 200 feet of visibility, the manual says a driver cannot safely exceed 30 mph. (Handbook, p. 23)
Road signs
- A reflective orange triangle on the rear of a vehicle means it is traveling less than 25 mph. (Handbook, p. 7)
- Animal crossing signs warn that vehicles have hit wildlife in that area before. (Handbook, p. 21)
- Reserved lanes are marked by signs saying the lane is reserved for special use, and often have a white diamond at the side of the road or painted on the pavement. (Handbook, p. 9)
- The manual identifies a stop sign by its eight sides and red face with white letters. (Handbook, p. 7)
- Warning signs alert drivers to a special situation or hazard ahead. (Handbook, p. 4)
Laws and paperwork
- A person who is 15 or older must be enrolled in and attending a driver education course approved by the Traffic Safety Bureau. (Handbook, p. 1)
- For a provisional license application, the manual requires no traffic conviction during the 90 days before applying. (Handbook, p. 2)
- The minimum age for a New Mexico instructional permit is 15 years. (Handbook, p. 1)
- The stated legal requirement applies to motorcycle drivers and passengers who are under 18. (Handbook, p. 37)
- An applicant under 18 must have a consent form signed by a parent or guardian when applying for an instructional permit. (Handbook, p. 1)
Emergencies
- Trucks transporting explosives, gasoline, or other dangerous materials must stop at least 15 feet from a railroad crossing before proceeding. (Handbook, p. 6)
- For a highway breakdown, the manual's first protective measure is to get the vehicle off the road and away from traffic whenever possible. (Handbook, p. 19)
- The right-of-way guidance directs traffic toward the right edge, or as near to it as possible, so the responding vehicle can pass. (Handbook, p. 12)
- The manual specifically says a driver already in an intersection should drive through it before pulling over. (Handbook, p. 12)
- First help anyone who is not already walking and talking, then check for breathing and for bleeding. (Handbook, p. 34)
Want the reasoning behind these rules? Study the handbook, chapter by chapter, in 17 short lessons quoted from the New Mexico manual.
Signs
Sign shape and color carry meaning before you even read the words. A red octagon always means stop, a red-bordered triangle pointing down means yield, and yellow diamonds warn of a hazard ahead. For every sign image used in our practice test, with the exact meaning and explanation, see the full road sign glossary.
Keep studying
This cheat sheet is a summary, not a substitute for practice. Test yourself with the free New Mexico DMV practice test, which explains the reasoning behind every answer, or see New Mexico DMV facts and fees before test day.