Guam Driver License Test cheat sheet

Red octagon means STOP; red triangle (point down) means YIELD; both require a full stop or give-way as posted.

Circular sign with a red slash through a symbol means the action is prohibited (no U-turn, no left turn, no parking).

Yellow diamond signs are warnings about conditions ahead; orange diamond signs are work-zone warnings.

A flashing red signal is treated as a stop sign; a flashing yellow signal means slow down and proceed with caution.

Solid yellow center lines separate traffic moving in opposite directions; broken yellow lines permit passing when safe.

Solid white lines mark the right edge or separate lanes moving in the same direction; crossing a solid white line is discouraged.

A steady green arrow gives a protected right-of-way for that movement; a green circle means proceed only if the intersection is clear.

Yellow pentagon (school) and yellow diamond signs require reduced speed and heightened scanning, not a mandatory stop unless posted.

At an uncontrolled intersection, the vehicle arriving first has the right-of-way; if simultaneous, yield to the vehicle on the right.

A vehicle turning left must yield to oncoming traffic going straight or turning right, unless it has a protected green arrow.

Drivers entering a roadway from a driveway, alley, or private road must yield to all traffic already on the roadway.

At a four-way stop, proceed in order of arrival; ties are resolved by yielding to the vehicle on the right.

Pedestrians in a marked or unmarked crosswalk have the right-of-way; drivers must stop and remain stopped until they clear the lane.

A vehicle already in the intersection when the light changes may complete its turn after yielding to pedestrians and cross traffic.

Emergency vehicles with lights and siren have right-of-way; pull to the right edge and stop until they pass.

When two vehicles enter an intersection at the same time from opposite directions and one is turning left, the left-turner yields.

Use the three-second following rule at normal speeds; add one second for each adverse condition (rain, darkness, heavy load).

Scan 12-15 seconds ahead in urban areas and farther on open highways to identify hazards early.

Hands at 9 and 3 o'clock (or 8 and 4) on the wheel; push-pull steering preserves control and airbag clearance.

Check mirrors and blind spots before every lane change; signal at least 100 feet before turning in most jurisdictions.

Space cushion: maintain at least one car length of gap at stops so you can steer around a stalled vehicle.

Do not drive when drowsy; micro-sleeps of 4-5 seconds at highway speed cover the length of a football field.

In fog, use low beams; high beams reflect off moisture and reduce visibility.

Right turns on red are permitted only after a full stop and yield, and only where not prohibited by sign.

The basic speed law requires driving at a speed reasonable and prudent for conditions, regardless of the posted limit.

Posted limits are maximums for ideal conditions; rain, night, or road work require lower speeds.

Guam default urban/business and residential limits are typically 25 mph unless otherwise posted; rural/highway limits are higher and posted.

School zones and work zones have reduced posted limits that are enforceable when workers or children are present.

Speed must be reduced when approaching a curve, hill crest, or intersection with limited sight distance.

Exceeding the posted limit by 15 mph or more is commonly classified as excessive speed with enhanced penalties.

Stopping distance increases with the square of speed: doubling speed roughly quadruples braking distance.

Minimum speed limits may be posted on some highways; driving unreasonably slowly impedes traffic and is also a violation.

Guam's per se limit for drivers 21 and older is 0.08% BAC; a lower limit (commonly 0.02%) applies to drivers under 21.

Implied consent: submitting to a chemical test is a condition of driving; refusal carries license suspension and other penalties.

Commercial drivers are held to a 0.04% BAC standard.

A first DUI conviction in Guam carries fines, license suspension, and possible jail time; penalties escalate with repeat offenses.

Alcohol impairs judgment, reaction time, and coordination before BAC reaches the legal limit.

Prescription and over-the-counter drugs that cause drowsiness can support a DUI charge even without alcohol.

Open containers of alcohol in the passenger area of a moving vehicle are prohibited.

Designate a sober driver or use public transportation; impairment begins with the first drink for many drivers.

Pass cyclists with at least three feet of clearance where practicable; if not possible, wait until safe.

Motorcyclists have the same rights and responsibilities as other motorists; give them a full lane.

Large trucks have large blind spots (no-zones) on both sides, directly behind, and in front; if you cannot see the driver's mirror, they cannot see you.

Trucks need extra room to turn right; never pass a truck on the right when it is signaling a turn.

Pedestrians are most vulnerable at night and in crosswalks; yield and scan for them at every intersection.

When passing a stopped school bus with flashing red lights, stop in both directions unless separated by a physical median.

Motorcyclists often downshift or brake abruptly; increase following distance behind them.

Bicycles are vehicles; they must obey traffic signals, ride with traffic, and are entitled to the full lane when necessary.

Parking within 15 feet of a fire hydrant, 20 feet of a crosswalk, or 30 feet of a stop sign is generally prohibited.

Do not park on a sidewalk, in a crosswalk, in front of a driveway, or within an intersection.

Park parallel to and within 18 inches of the curb (or as posted) facing the direction of traffic.

Set the parking brake and turn wheels toward the curb when parking downhill; turn wheels away from the curb when parking uphill with a curb.

When parking uphill without a curb, turn wheels toward the edge of the road so the vehicle rolls away from traffic.

Stopping means halting temporarily; standing means waiting with the driver present; parking means leaving the vehicle.

Do not park in spaces reserved for persons with disabilities without a valid placard or plate.

Double parking and blocking a traffic lane are prohibited even for short stops.

Headlights must be on from sunset to sunrise and whenever visibility is reduced (rain, fog, or insufficient light).

Guam requires liability insurance and current registration; driving without them is a violation and can result in fines or license action.

Seat belts are required for all occupants; children must be secured in an appropriate child safety seat per Guam law.

Motorcyclists and passengers must wear approved helmets.

Vehicle equipment must be in working order: brakes, lights, horn, mirrors, wipers, and turn signals.

Tinted windows must meet legal light-transmission standards; excessively dark tint is prohibited.

License plates must be visible and unobstructed; expired registration tags are a violation.

A vehicle safety inspection is required for registration renewal in Guam; failing inspection means the vehicle cannot be legally registered.

After a crash, stop, render aid if safe, exchange information, and notify police when required by law.

Report a crash to police when there is injury, death, or significant property damage; Guam law sets specific reporting thresholds.

Move vehicles off the travel lane if they are operable and no one is injured, to prevent secondary crashes.

Do not leave the scene of a crash involving injury or death; hit-and-run is a serious criminal offense.

If your vehicle stalls on the road, turn on hazard lights and move to the shoulder; raise the hood to signal distress.

If a tire blows out, hold the wheel firmly, ease off the accelerator, and steer to a safe stop; do not brake hard.

If your brakes fail, pump the pedal, downshift, and use the parking brake gradually; steer toward a safe runoff area.

Carry a basic emergency kit and know how to place reflective triangles or flares behind a disabled vehicle.

Guam drives on the right; left turns across oncoming traffic require yielding unless a protected arrow is present.

Guam's tropical climate means frequent rain, slick roads, and reduced visibility; slow down and increase following distance.

Roads in Guam often lack shoulders and have drainage ditches; watch for pedestrians, animals, and debris near the edge.

Typhoon season can bring flooding and debris; avoid driving through standing water and heed road closure notices.

Guam's speed limits are posted in miles per hour; default residential limits are typically 25 mph unless otherwise posted.

Local law requires stopping for school buses with flashing red lights and yielding to pedestrians in crosswalks.

Driving under the influence and reckless driving carry enhanced penalties in Guam, especially near schools and populated areas.

Be alert for military convoys, construction zones, and uneven pavement on major routes such as Marine Corps Drive.