Guam is an unincorporated territory of the United States. Driving a motor vehicle on Guam is a privilege granted by the Territory so to drive on Guam, every driver must be licensed by the Territory
Before the Territory issue a driving permit to anybody, he/she must show the requisite skill. The driver license is valid for a period of three years.
It is permitted to drive without the Guam driver licenses:

• Active duty military personnel stationed on Guam as long as foreign driving permits are valid or while operating the military or Federal Government vehicle.
• Visitors who have held valid driver licenses from one of the U.S. States, territories, or possessions for up to 30 days after arrival on Guam.

The main road traffic rules:

• Driving is on the right hand side of the road
• The minimum driving age is 18 years. To apply learner permits, person must be at least 15 ½ years 6 of age. A learner permit is valid for 2 years.
• Seat belts are mandatory for drivers and all vehicles’ passengers.
• Children under 12 years must be ridden in child restraint or booster seats.
• The maximum speed limits are: 35 mph in rural area; 15 mph in residential areas; and 15 mph or 25 mph in school zones.
• It is not permitted to use mobile phones while driving.
• The legal blood alcohol concentration (BAC) is 0.08 %.
• Drivers must carry their valid license with them at all times while driving on Guam.
• Every driver must give signals when he intends to change the direction.
• The legal parking position is with the right front and rear wheels of the vehicle within 18 inches of the curb.
• When angle parking is not clearly designated, a vehicle must be parked parallel to the curb.
• It is required to remove keys from the ignition after parking vehicles.
• It is not permitted to park or stand:

1. within an intersection;
2. on a crosswalk;
3. between a safety zone and the adjacent curb;
4. within 25 feet of the intersection or curb lines;
5. within 15 feet of the intersection of property lines at an intersection of highways;
6. within 30 feet of any official flashing signal, stop sign, and traffic signal located at the side of the highway;
7. within 15 feet of the driveway entrance to any fire station and fire hydrants;
8. in front of a private driveway;
9. on any Guam beach.

• At intersections without traffic control devices, the vehicle on the left must yield the right-of-way to the vehicle on the right.
• At intersections with STOP signs, the first vehicle in the intersection has the right to go ahead.
• It is permitted to left turns across a solid line.
• Drivers must give a right of way to a pedestrian crossing the road within any marked or unmarked crosswalk at intersections.
• Vehicles approaching from the rear may not overtake and pass vehicles stopped at a crosswalk.
• If no other sign, it is permitted to turn right against the red signal.
• It is not permitted to change lanes in an intersection.
• It is forbidden to make a U-turn:

1. on a curve;
2. at any intersection where a traffic signal controls the movement of vehicles;
3. in front of the driveway entrance or approach to a fire station.

• It is permitted to make a U-turn in the middle of the block in a residential district if there are no cars coming from either direction.
• Traffic in all directions must stop when approaching a school bus that is stopped for the purpose of taking on or discharging students.
• Horns may be used only when it is necessary for safe operation.
• It is illegal to throw a lighted cigarette or any other flaming or flowing substances from a car on the street or highway.

The additional information:

• If a foreign visitor takes his/her own car into Guam, he/she will need to pass a safety inspection before it is allowed to travel on the Guam roads.
• If driver is required to wear eye glasses while driving, he/she should have a spare pair in the car.
• Any traffic direction or signal by a traffic police officer or a fireman on duty must be complied with.
• When a vehicle is stopped on a highway, all four wheels should be off the pavement if possible. If it is impassible to park off the roadway, a parked car should be visible 200 feet in each direction.
• In a case of an accident, it is required to stop and properly identify all people entrained in the accident. Leaving the scene of an accident if personal injury has resulted is a felony.

 Driving Overseas - Short Information