New Mexico Car / Permit practice
New Mexico Car / Permit: Traffic Laws practice test
Speed limits, turning and signaling rules, headlight and seat-belt requirements, and the everyday laws every driver must follow.
Content reviewed against official driver handbooks · August 12, 2026
17 questions · pass with 14 correct. You get instant feedback and an explanation after every answer.
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12 sample Traffic Laws questions with the correct answer, a short explanation, and the official handbook reference. Read through them, then take the quiz above.
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1. How must a child younger than 24 months, or weighing under 60 pounds, ride in a vehicle?
Correct answer: Secured in an approved child safety device
Those children have to travel in an approved safety device. Groups around the state will lend a device to families who cannot afford one.
Source: New Mexico Driver Manual — Safety Belts and Child Restraints
2. Up to what age does New Mexico law require children to be in appropriate safety restraints while a vehicle is moving?
Correct answer: Under 12
Every child below the age of 12 has to be properly restrained any time the vehicle is in motion.
Source: New Mexico Driver Manual — Safety Belts and Child Restraints
3. Where is the safest place in the vehicle to secure a child?
Correct answer: In the back seat
Children belong in the back seat. Placing one on the front passenger side is dangerous, especially with an air bag, because a deploying bag can injure the child in a crash.
Source: New Mexico Driver Manual — Safety Belts and Child Restraints
4. What does a white diamond painted on the pavement or posted beside the road indicate?
Correct answer: A lane held for particular vehicles
The diamond marks a reserved lane. Accompanying signs say which users it is held for, such as buses, bicycles, or vehicles carrying several people.
Source: New Mexico Driver Manual — Reserved Lanes
5. A center lane is bounded on each side by a solid yellow line outside a broken yellow line. What is it for?
Correct answer: Left turns by traffic coming from both directions
That shared center lane is set aside for left turns, and for U-turns where they are legal, by drivers approaching from either direction. Pavement arrows for one direction alternate with arrows for the other.
Source: New Mexico Driver Manual — Shared Center Lane
6. Signs or markings allow two lanes to turn at the same intersection. What must you do?
Correct answer: Hold your lane all the way through the turn
Hold your own lane the whole way around the turn instead of drifting into the other turning lane.
Source: New Mexico Driver Manual — General Rules
7. A sign beside the road reads "HOV 3." Who may use that lane?
Correct answer: Vehicles with a minimum of three occupants
HOV stands for high occupancy vehicles, and the number states the minimum occupancy, so "HOV 3" opens the lane to vehicles carrying three or more people. Signs also spell out the days and hours the restriction applies.
Source: New Mexico Driver Manual — Reserved Lanes
8. What restriction on cell phones does the manual say applies in some New Mexico towns?
Correct answer: Phone use while driving is banned unless a hands-free device is used
Certain towns forbid using a cell phone at the wheel unless it is hands-free. Even where it is legal, dialing or talking pulls your attention off the road, so pull over to take a call when you can.
Source: New Mexico Driver Manual — Cellular Phone Usage
9. With no signs or lane markings to guide a turn, how should the turn be made?
Correct answer: Start from the lane nearest your intended direction and finish in the lane nearest the one you came from
Begin from whichever lane sits closest to the direction you are heading and end in the lane closest to the one you left, so you cut across as little traffic as possible. Move between lanes cleanly and signal every time.
Source: New Mexico Driver Manual — General Rules
10. What does New Mexico law say about driving while wearing a safety belt?
Correct answer: Driving unbelted is against the law
Operating a vehicle in New Mexico without your safety belt fastened breaks the law, and belted occupants are far less likely to be hurt or killed in a crash.
Source: New Mexico Driver Manual — Safety Belts and Child Restraints
11. A red "X" is displayed on a lane-control signal above a travel lane. What does it mean?
Correct answer: You may not use that lane
A red X closes the lane to you. A green arrow overhead opens the lane, a blinking yellow X marks it for turning only, and a steady yellow X warns that its use is switching, so leave it as soon as you safely can.
Source: New Mexico Driver Manual — Reversible Lanes
12. Which side of the island do you pass on when driving around a traffic circle?
Correct answer: On the right side of the island
Traffic travels around the island on its right-hand side. The state may also convert any public road to one-way travel, and when it does, signs must be posted telling drivers which way to go.
Source: New Mexico Driver Manual — One-Way Streets and Circles
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Every New Mexico question is written from the official New Mexico driver handbook and checked against its current edition. DMV Test Free is a free, independent study resource — not affiliated with any DMV or government agency. About DMV Test Free