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Most-missed Maine DMV rules
These are the numbers and rules that trip up new drivers most often on the real Maine knowledge test. Every fact below comes from our free Maine DMV practice test question bank, which has 180 questions across 8 topics.
Speed limits
- The handbook states school zone speeding fines are doubled versus the standard fine.
- Like school zones, Maine doubles fines for speeding through a posted work zone.
- Maine has no single flat 55 mph rural default; the default open-road limit is 45 mph unless posted otherwise.
- Maine's default statutory speed limit is 25 mph in business or residential/built-up districts unless otherwise posted.
- Maine imposes a 15 mph speed limit in school zones during recess and the half hour before/after school start and end times, or when flashing signals are active.
- Maine imposes a 15 mph maximum when approaching within 50 feet of an intersection with obstructed/limited visibility.
- The Maine legislature caps speed limits the Commissioner can set at 60 mph generally and 75 mph on the interstate system or other divided controlled-access highways.
Right of way
- Maine's rule gives right-of-way to the car proceeding straight over one that is turning at an angled intersection.
- Vehicles already in a roundabout or merging lane have the right-of-way over vehicles entering.
- Similar to roundabout rules, vehicles already on the through road have priority over merging traffic.
- The handbook requires drivers to always yield to children crossing, overriding typical priority rules.
- Default right-of-way rules still govern uncontrolled intersections, though the handbook stresses caution over insistence on priority.
- When two vehicles reach a four-way stop at the same time, the driver on the right yields to no one and proceeds first; the other driver must yield.
- Drivers must always yield to a visually impaired pedestrian using a white cane or guide dog, regardless of other right-of-way rules.
- Do not cut through or break up a funeral procession. Slow down, be patient, and let it pass. Cutting between the vehicles is unsafe and often illegal.
- At an uncontrolled intersection, slow down and yield to any car already in the intersection or approaching from your right.
- A left-turning vehicle must yield to oncoming through traffic and to pedestrians. Only turn when the gap is safe.
- When entering a roundabout, yield to traffic already circulating and travel counterclockwise. Exit at your street; do not stop in the middle of the circle.
- At a T-intersection, traffic on the road that ends must yield to traffic on the through road that continues.
- A round green light allows a left turn but does not give you the right of way. Pull into the intersection, yield to oncoming through traffic and pedestrians, then turn when there is a safe gap.
Alcohol and DUI
- All under-21 licenses are provisional, allowing immediate suspension for any alcohol use, not just over a set limit.
- The manual flags impairment beginning around .02 BAC, well below the adult legal limit.
- Maine adds an extra suspension period when an underage OUI driver had a passenger who was also under 21.
- A BAC of 0.15+ is one of the listed aggravating factors triggering mandatory jail time under Maine OUI law.
- Maine's zero-tolerance policy for minors does not require a specific threshold; any measurable alcohol is a violation.
- Exceeding the speed limit by 30 mph or more while committing OUI is one of the statutory aggravating factors.
- Refusing a lawfully requested chemical test triggers its own administrative license suspension under implied consent laws, separate from and in addition to any penalties from an OUI conviction.
- Maine's adult OUI BAC threshold is 0.08 grams of alcohol per 100 milliliters of blood or 210 liters of breath.
- Maine OUI license suspension escalates by prior offense within 10 years: 150 days (1st offense), 3 years (2nd), 6 years (3rd), 8 years (4th or more).
- A first-time OUI test refusal requires a minimum 96-hour jail term (vs. 48 hours if tested) and a minimum $600 fine (vs. $500 if tested).
- Under 21 zero-tolerance OUI law: any measurable alcohol level while operating results in a 1-year license loss; refusing the test as an underage driver results in at least an 18-month loss, with an additional 180-day suspension if a passenger under 21 was present.
Signals and markings
- A flashing yellow signal warns drivers to slow down and proceed carefully, rather than requiring a full stop.
- A steady red light requires a full stop; cross traffic has the right of way until the light changes.
- At uncontrolled intersections, drivers must yield to vehicles that are already in the intersection.
- A flashing yellow signal warns drivers to proceed through the intersection with caution rather than requiring a full stop.
- A steady red signal requires a full stop; any right turn on red is only allowed after stopping and when safe and not prohibited by signage.
- A flashing yellow signal is a caution indicator meaning drivers may proceed but should do so carefully.
- A solid yellow line on your side of the centerline indicates no passing is permitted from your side of the road.
- A dashed yellow centerline indicates passing is permitted on that side, provided it can be done safely and there is no oncoming traffic conflict.
- A flashing red signal functions like a stop sign, requiring drivers to come to a complete stop before proceeding when it is safe.
- A steady red light always requires a complete stop before the intersection unless a sign specifically permits turning after stopping.
- A yellow light signals that the light is about to change to red, and drivers should stop if they can do so safely rather than accelerate through it.
- A flashing yellow arrow is a permissive signal allowing a left turn, but only after yielding to all oncoming traffic and pedestrians/cyclists in the crosswalk.
- A steady yellow light warns that the right of way is ending and the signal is about to turn red.
- A broken yellow line on your side permits passing when safe, while a solid yellow line on your side prohibits passing, a standard center-line marking convention drivers must recognize.
- A solid yellow line on your side of the center marking indicates passing is prohibited from that direction due to limited sight distance or other hazards.
- When a signal is dark or malfunctioning, drivers must treat the intersection as a four-way stop, coming to a full stop and yielding to the vehicle on the right if both arrive at the same time.
- A flashing red signal functions like a stop sign, requiring drivers to come to a complete stop before proceeding when safe.
- A bike box lets cyclists position ahead of traffic; drivers must stop behind the box rather than within it.
- A dashed yellow center line indicates passing is generally permitted when it can be done safely, unlike a solid yellow line.
- A flashing red signal functions the same as a stop sign, requiring drivers to stop completely and then proceed only when it is safe.
- A dashed yellow line means passing is allowed when there is a safe gap in oncoming traffic, unlike a solid yellow line.
- A solid yellow line on your side of the centerline means you may not cross it to pass; passing is prohibited from that side.
- A flashing yellow light means slow down, look, and proceed carefully. It does NOT require a full stop the way a red light or STOP sign does.
- A flashing hand or countdown means do NOT start crossing. If you are already in the crosswalk, keep going and finish crossing safely.
- A steady DON'T WALK hand prohibits starting to cross. Only a WALK signal or walking-person symbol allows you to begin crossing.
- Always signal continuously through a turn or lane change even when you see no other cars, because pedestrians or cyclists may be near. Cancel the signal after you finish.
- A green downward arrow means the lane is open for you to use. A red X above the lane means it is closed and you may not drive in it.
- Double solid yellow lines separate opposing directions and prohibit passing. You may only cross them for a permitted left turn or a legal U-turn into an intersection or driveway.
- A broken yellow line on your side of the lane allows passing when it is safe. The solid line on the opposite side means that direction may not pass.
- White lines separate lanes going the same direction. A solid white line means stay in your lane and avoid changing lanes, while a broken white line lets you change lanes when safe.
- A two-way center left-turn lane is only for preparing to turn left or merging into traffic. You may not use it to drive straight through or to pass.
Safe driving
- Maine law prohibits driving so slowly that it impedes normal traffic movement unless required for safety.
- The core safety reasoning is that other drivers may not yield as expected, so defensive caution prevents collisions.
- Maine requires children under 2 years old to ride in a rear-facing car seat per manufacturer instructions.
- Maine booster seat law covers children at least 40 lbs but under 80 lbs, under 57 inches tall, and under 8 years old, who must use a federally approved child restraint system.
- Child restraint violations in Maine carry escalating fines: $50 first offense, $125 second offense, $250 third or subsequent offense.
- The manual sets a specific cutoff allowing mopeds/scooters only on roads posted at 50 mph or lower.
- Children under 7 must use a child restraint system meeting 49 CFR 571.213 standards unless they are 57 inches or taller.
- Work zones are posted at least 10 mph under the normal maximum speed specifically to protect workers and should always be observed.
- Advisory speed plates on curve warning signs indicate a safe reduced speed that drivers should slow to before entering the curve.
- Drivers must stop for a school bus with flashing red lights and remain stopped until the lights stop flashing, protecting children crossing.
- An owner cited by a stop-arm camera faces monetary penalties instead of points: $250 for a first violation, rising to $300 for a third within 18 months.
- Rural highways through unfenced farm and ranch land require extra alertness for livestock and wildlife crossing the road.
- General right-of-way practice, reflected in the manual, is that the first vehicle to arrive and stop proceeds first; simultaneous arrivals yield to the right.
- The manual requires yielding to pedestrians, cyclists, and others still clearing the intersection even if you'd otherwise have priority.
- Drivers must yield to emergency vehicles with active lights and siren by safely moving aside, not stopping in the travel lane.
- Defensive driving calls for slowing down and preparing to stop when visibility of intersection controls is uncertain.
- A time based following distance, counting seconds behind the vehicle ahead, adjusts naturally for speed and is the standard safe driving practice.
- Passengers under 2 years old must specifically be secured in a rear-facing child restraint system.
- General safe-driving principles call for maintaining an adequate following distance that increases with speed and worsening conditions to allow safe stopping.
- With a tailgater, open up more space in front of you so you can brake gradually instead of suddenly. Do not brake to retaliate and do not race away.
- Strong crosswinds can push your car out of its lane. Hold the wheel firmly with both hands, slow down, and be ready for sudden gusts.
- Do not engage. Avoid eye contact, do not brake in retaliation, let them pass, and leave a safe distance between you and that car.
- Horses and livestock spook easily. Slow down, do not honk or rev your engine, and pass very slowly with plenty of room so you do not startle them.
- When you see a hazard developing ahead, cover the brake and plan an escape route so you can react faster if you have to stop.
- In a skid, ease off the gas or brake and steer gently in the direction you want the front of the car to go. Slamming the brakes makes the skid worse.
Road signs
- STOP (R1-1): full stop at the line or crosswalk even when empty; yield, then proceed.
- YIELD (R1-2): give up the right-of-way; slow and be ready to stop.
- DO NOT ENTER (R5-1): entry prohibited; common at freeway off-ramps and one-way streets.
- WRONG WAY (R5-1a): you have entered opposing traffic. Pull over safely and turn around when possible.
- ONE WAY (R6-1): all traffic flows in the arrow's direction.
- NO U-TURN (R3-4): no U-turns at this location. This is not a no-left-turn sign (a different arrow shape) or a no-passing sign (a different shape and color entirely).
- NO LEFT TURN (R3-2). A red circle-and-slash always bans the pictured movement.
- NO RIGHT TURN (R3-1): no right turns, including on red. Going straight is still fine since the sign only bans the right-turn movement; parking is unrelated to this sign.
- White/black = regulatory. Speed Limit is the legal max in ideal conditions; drive slower when conditions are bad (Basic Speed Law).
- KEEP RIGHT (R4-7): a median or obstruction is ahead; keep to its right.
- The crossbuck (R15-1) stands at the tracks and legally works like a YIELD sign: slow, look both ways, be ready to stop.
- Advance warning (W10-1): tracks ahead. Slow down, look, and listen.
- School (S1-1): school zone or crossing. Slow down and watch for children; obey the posted reduced school-zone speed limit, which varies by state.
- Pedestrian crossing (W11-2): crossing ahead; slow and be ready to stop.
- Signal ahead (W3-3): an intersection signal is coming, useful when it hides behind a curve.
- Stop ahead (W3-1): a stop sign is coming (often obscured); start slowing now.
- Merge (W4-1): traffic joins ahead. Adjust speed and position to let them in safely.
- Lane ends (W4-2): merge early; zipper-merge when traffic is heavy.
- Two-way traffic (W6-3): you are leaving a one-way road; keep right.
- Divided highway begins (W6-1): directions separate around a median; always keep right of it.
- Slippery when wet (W8-5): slickest in fresh rain. Slow down, keep distance, steer smoothly.
- Curve (W1-2): slow BEFORE the curve; do not brake in the middle of it.
- Turn (W1-1): sharper than a curve; slow down hard, follow the advisory plaque.
- Winding road (W1-5): consecutive curves; hold a steady lower speed throughout.
- Crossroad (W2-1): an intersection ahead with traffic entering from both sides. Hospital signs are blue with an H.
- NO PASSING ZONE (W14-3): unique pennant shape, posted on the LEFT side, marks where passing becomes illegal.
- The eight-sided red STOP sign requires a full stop before entering the intersection, regardless of visible cross traffic.
- The five-sided pentagon shape is used nationally to indicate school zones and school crossing warnings.
- The triangular yield sign shape signals drivers to give the right-of-way as needed to other traffic or pedestrians.
- Warning signs (typically yellow, diamond shaped) inform drivers of hazards ahead like curves or crossings, distinct from regulatory signs that state legal requirements.
- The downward-pointing red-and-white triangle is the standard YIELD sign, requiring drivers to slow and yield to conflicting traffic.
- The triangular shape is uniquely reserved for Yield signs, telling drivers to slow and give way rather than come to a full stop.
- Diamond-shaped yellow signs are warning signs, alerting drivers to hazards or changes in road conditions ahead.
- White rectangular signs with black lettering are the standard shape and color used for regulatory information like speed limits or turn rules.
- The handbook instructs drivers at yield signs to slow down and yield to vehicles already in the intersection or approaching.
- Diamond-shaped yellow signs are standard warning signs alerting drivers to hazards ahead, such as curves, merges, or intersections.
- A circular sign with a diagonal slash through it is used nationally to show that a prior restriction (like a speed limit) no longer applies.
- The manual specifically calls out School Crossing signs with children present as requiring reduced speed.
- A stop sign always requires a complete stop and yielding to cross traffic and pedestrians before proceeding, consistent with the manual's yield principle.
- Pentagon-shaped signs are used specifically to indicate school zones or school crossings, alerting drivers to reduce speed.
- A downward-pointing triangle is the standard yield sign, instructing drivers to slow and give right of way to conflicting traffic.
- The five-sided pentagon shape is reserved specifically for school-related warning signs, distinct from all other warning sign shapes.
- Drivers must stop at the marked line or crosswalk, or at the edge of the intersection if there is no marking, before proceeding.
- Warning signs alert drivers to hazards or changing conditions ahead, while regulatory signs like stop/yield signs impose legally required actions.
- The manual specifies reduced speed limits apply at locations marked with a School Crossing sign when children are present.
- The downward-pointing triangle is the standard yield sign shape, meaning drivers must slow and give the right of way if needed rather than always stopping.
- The yellow pennant-shaped sign marks the start of a no-passing zone. It usually appears along with a solid yellow line on the pavement.
- A yellow diamond-shaped sign is a WARNING sign, alerting you to a hazard or change ahead such as a curve, intersection, or school, so you slow down.
- A white rectangular sign with black lettering is a REGULATORY sign stating a law you must obey, such as speed or direction of travel.
- An orange sign marks a construction or roadwork zone. Slow down and watch for workers and shifting lanes.
- A blue sign points to driver services such as gas stations, food, lodging, or hospitals.
- A green sign is a GUIDE sign, showing directions, distances, and the names of exits or places.
- A red circle with a slash means the action shown is PROHIBITED, such as no turn or no U-turn at that spot.
Laws and paperwork
- Maine requires young applicants to complete an approved driver education course before licensing.
- Maine's Motorist Handbook and Study Guide is issued by the Secretary of State through the BMV.
- The current guide in use is the Rev 11/23 (November 2023) edition of the handbook.
- Maine requires young applicants, including those transferring from out of state, to complete approved driver education first.
- Maine learner's permit applicants must be at least 15 years old.
- Drivers under 21 must complete a minimum of 70 hours of supervised driving, including 10 hours of night driving, accompanied by a parent, guardian, or licensed driver at least 20 years old.
- A 6-month waiting period from learner's permit issuance is required before a driver under 21 can apply for a license.
- Maine's intermediate license prohibits driving between midnight and 5 a.m., waived only if accompanied by a licensed parent or guardian.
- Intermediate license holders may not carry passengers other than immediate family (including foreign exchange students, court-appointed wards, and children of deployed military living with the family) unless accompanied by a qualifying licensed operator.
- Intermediate license holders are banned from using, manipulating, or talking into any handheld electronic device or mobile phone while driving, even hands-free interaction, except when the vehicle is safely pulled over off the roadway.
- Intermediate license restrictions last 270 days from issuance and can extend past a driver's 18th birthday if violated.
- A violation of intermediate license rules adds another 270-day restriction period, with escalating fines of $250 to $500 and license suspensions of 60 days (1st), 180 days (2nd), and 1 year (3rd or subsequent).
- Maine's written driver's license knowledge test has 30 questions with a required 24 correct (80%) to pass.
Emergencies
- The handbook identifies May-June as the peak moose collision period, notably earlier than the fall rut many assume.
- The manual instructs drivers to be patient and let the moose move off rather than maneuvering around it or approaching on foot.
- Since moose eyes don't glow like deer eyes under headlights, drivers must scan for a large silhouette instead.
- Maine's move-over law (Title 29-A, section 2054) requires drivers passing a stopped emergency vehicle with lights activated to move into a non-adjacent lane, or if unsafe/impossible, to pass at a careful and prudent reduced speed; violations carry a $326 fine.
- Maine's move-over law was expanded effective October 25, 2023 to cover any disabled vehicle, not just emergency/enforcement vehicles.
- Safe driving practice, sometimes called a move-over rule, is to give stopped vehicles extra space by changing lanes or slowing down.
- Pumping the brakes can rebuild some pressure, and downshifting uses engine braking to help slow the vehicle safely before using the parking brake carefully.
- Moving vehicles safely out of the flow of traffic prevents further collisions before drivers exchange license and insurance information.
- Drivers must yield to emergency vehicles by pulling over to the right side of the road, clear of intersections, and stopping until the vehicle passes.
- Drivers are expected to keep a substantial following distance after an emergency vehicle passes, rather than closing in immediately.
- Move Over laws require drivers to move over or slow down for any stopped vehicle with warning lights activated, to protect people near the roadway.
- Drivers must yield to emergency vehicles by pulling over to the right and stopping until the vehicle has passed.
- When a safe lane change isn't possible, drivers are generally expected to reduce speed and use caution passing the stopped vehicle.
- A move-over violation causing death carries a fine of up to $10,000 and a 1-year license suspension, compared to 90 days for bodily injury and 6 months for serious bodily injury.
- The Move Over Law has escalating consequences: a basic violation carries a modest fine and point penalty, a violation causing a crash carries a higher fine, and one causing death or serious injury carries the harshest penalty.
- Standard guidance for hydroplaning is to ease off the gas and avoid sudden braking or steering, letting the tires regain contact with the road.
- Move over laws generally require drivers to change lanes away from a stopped emergency or hazard vehicle when safe, or otherwise slow down.
- Rapid brake lights or hazard signals ahead indicate a potential emergency or obstruction, so drivers should slow down and prepare to react safely.
- The priority is to stop safely away from traffic, shut off the engine, and move away from the vehicle before dealing with the fire.
- Drivers must yield right-of-way, pull as far right as possible, stop, and remain stopped until the emergency vehicle has passed.
- Drivers must yield to emergency vehicles by pulling over and stopping, clearing the intersection first if already inside it.
- The lane-change requirement applies on interstates and any multi-lane highway with four or more lanes that has at least two lanes traveling in the same direction.
- On divided highways of 4+ lanes, drivers should move over a lane away from a stopped emergency vehicle when it can be done safely.
- Drivers must yield the right of way to emergency vehicles by pulling to the right edge of the road and stopping until the emergency vehicle has passed.
- Per N.J.S.A. 39:4-81, a malfunctioning or dark traffic signal must be treated as an all-way stop.
- If your car catches fire or smells like burning, pull over, shut off the engine, and get everyone away. Do not open the hot hood, since the rush of air will make the fire flare up.
- If the gas pedal sticks, shift to Neutral to cut the power, then brake and steer to the shoulder. Only turn off the engine after you have fully stopped, so you do not lose power steering.
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 Maine DMV practice test, which explains the reasoning behind every answer, or see Maine DMV facts and fees before test day.