Free Massachusetts DMV Cheat Sheet 2026

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Most-missed Massachusetts DMV rules

These are the numbers and rules that trip up new drivers most often on the real Massachusetts knowledge test. Every fact below comes from our free Massachusetts DMV practice test question bank, which has 209 questions across 9 topics.

Speed limits

Massachusetts speed law works from a list of unposted defaults, and a thickly settled or business district sits at 30 mph. Some communities have adopted a 25 mph limit and post signs saying so, which is why the choice mentions that exception. Twenty is the school zone figure, forty applies outside a thickly settled district, and fifty is for highways outside those districts. Exceeding the default is treated as speeding even without a sign, and driving at the default in rain or heavy traffic can still be ticketed as unreasonable.
The thickly settled definition is about spacing, not population or municipal boundaries. If buildings sit less than 200 feet apart for at least a quarter mile, the road is thickly settled and the 30 mph default applies even with no sign in sight. City limits and population density are not part of the test, and sidewalks do not decide it either. The practical skill is to notice when houses and storefronts start crowding the road and to drop to 30 before a sign tells you.
The Massachusetts statutory threshold is 50 mph on a divided highway outside a thickly settled or business district, measured over at least one-quarter mile. An undivided highway outside those districts has a 40 mph threshold instead. The distinction is the divided roadway, not simply whether a road is called a highway. Posted limits take precedence, and speed must still be reasonable for the actual traffic, weather, and road conditions.
The posted number is not a guarantee of safety. Massachusetts uses exactly this example: 40 mph in a heavy rainstorm on a 50 mph highway can draw a ticket because the speed is not reasonable and proper for the conditions. Being under the limit is not a defense, no second violation is required, and the road type does not matter. In rain, fog, snow or heavy traffic the law expects you to choose a speed that lets you stop within the distance you can see, whatever the sign says.
An unposted, undivided highway outside a thickly settled or business district has a 40 mph statutory threshold in Massachusetts, measured over at least one-quarter mile. The corresponding divided-highway threshold is 50 mph. Open country alone does not make an undivided road a 50 mph road. A posted speed limit controls where signs establish one, and drivers must slow further when rain, limited sight distance, or other conditions require it.
School zones sit at the bottom of the Massachusetts default list at 20 mph. Fifteen is lower than the state uses, twenty five is the optional posted limit some communities adopt for thickly settled areas, and thirty is the thickly settled default itself. School zone speed limit signs may carry flashing yellow lights or be posted for certain hours of the day, so look closely for signs saying you are approaching or entering a school zone, and watch for children crossing and for crossing guards.
The manual works the arithmetic for you: 73 mph on a 55 mph highway comes to a $185 fine. That total combines the base fine with a per mile charge for every mile over the limit, which is why a modest looking overage produces a three figure ticket. Fifty and one hundred dollars understate it, and five hundred is far more than this example produces; in a posted work zone the whole speeding fine would instead be doubled. The fine is only the start, since the violation also counts toward the three in twelve months suspension and raises insurance surcharges.
Speed feels like a highway problem, but the manual points out that eight out of ten crashes happen at 40 mph or less. It also notes that most motor vehicle crashes happen less than 25 miles from home, on the short, familiar trips drivers take every day. Two in ten and one in ten invert the statistic, and half understates it. The lesson is that a windshield strike at 30 mph is like a three story fall, so belts and attention matter on the slow trips as much as on the interstate.
By law, all Massachusetts speeding fines include a $50 surcharge, and the entire surcharge goes to the Head Injury Treatment Services Trust Fund, because speeding often plays a part in crashes that cause serious head injuries. The $5 figure is a separate public safety surcharge, not the trust fund surcharge. Twenty-five and one hundred dollars are not the stated amounts. The speeding fine itself is $105 for the first 10 mph over plus $10 for each additional mph.

Right of way

When the red lights flash and the stop sign swings out, Massachusetts requires every driver approaching from either direction to stop. There is no slow and pass option, and you do not get to judge whether children are visible; the ones you cannot see are the reason for the rule. Passing on the left is the classic school bus violation. The single exception is a bus stopped on the far side of a divided highway with a barrier between the travel directions.
Rotaries are a Massachusetts specialty, and the rule inside them is simple: traffic already circulating has the right of way, and so do pedestrians at the crossings. Entering vehicles wait for a gap, no matter which direction they come from, so the idea of yielding only to the right or of entering traffic having priority is backwards. Vehicle size plays no part. Signs or an officer can change the pattern at a particular rotary, which is why the rule carries that exception.
Because Massachusetts drives on the right, every rotary is travelled counter-clockwise: you enter with a right turn, keep the island on your left, and leave with another right turn. Clockwise travel would send you head on into circulating cars, and there is never a choice of direction based on where you want to exit. Nothing crosses the center island. Signal your exit the same way you would at any intersection so the drivers waiting to enter can judge the gap.
A funeral procession keeps the right of way at intersections so it can stay together, and other drivers may not cut between its vehicles. The one exception is emergency traffic: the procession must yield to vehicles with flashing lights or sirens and to law enforcement directions. Stopped cars, vehicles on the right and large vehicles all wait for the procession. If the lead vehicle legally enters an intersection, the rest may follow even if the light changes.
The four-way stop rule has two parts: a vehicle that stopped before you goes first, and when you stop at the same moment, the vehicle to your right has the right of way. Being on the left gives you nothing, vehicle size never decides priority, and racing off the line is how these intersections produce crashes. Make eye contact with the other driver to confirm who is going, then proceed only when your turn is clear.
A throughway is the road given priority, and the rule is that you yield to its traffic before turning onto or across it. There is no fixed stop time, and horns and headlights never substitute for yielding. Check both directions, judge the gap against your acceleration, and turn only when you can complete the move without making throughway traffic brake. The same logic applies at any intersection where one road is signed as the through road.
A car that slows or stops at a crosswalk often hides the person it is stopping for. Massachusetts lists it among the laws for drivers: never pass a vehicle that is stopped or slowing for a pedestrian. A horn, a legal speed, or which lane the other car occupies does not change the danger, because you still cannot see whether someone is stepping out in front of it. The same list requires you to yield to pedestrians entering or using a crosswalk in your path and never to block one.
The duty to yield to people on foot is not limited to marked crosswalks. Among the laws for drivers, Massachusetts says you must yield to pedestrians when turning into a driveway or parking lot. A turn signal announces your intent but gives you no priority, and the lack of painted crosswalk lines does not change the rule. It is not a race to the entrance either. Slow down as you turn, scan the sidewalk on both sides of the driveway, and let the walker finish crossing first.

Alcohol and DUI

Massachusetts pairs the breath test with an immediate consequence. When the result is above the legal limit, or when the driver refuses a breathalyzer or blood test, the police officer must take away the license, and the driver is given a notice of suspension that is effective immediately. The law does not let the officer issue a warning and hand the card back, hold it for only 24 hours, or mail it to the RMV for a later decision. How long the suspension lasts is set by the manual's charts, which depend on age and prior offenses.
For the youngest drivers Massachusetts adds a full year of suspension when alcohol or drugs are part of certain driving offenses. The 180 day figure belongs to drivers who are 18 to 21 in the same situation. Thirty and sixty day suspensions exist in the manual for other reasons, such as three speeding violations in a year or a first Junior Operator passenger or night violation, but not for this one. The manual says this suspension comes in addition to any penalty assessed by a court or other law, so it stacks on top of the criminal case rather than replacing it.
Massachusetts sets the adult per se limit at 0.08 but has a zero tolerance law for anyone under 21: a BAC of 0.02 or higher brings penalties. Point zero five is not a Massachusetts threshold, and while the zero tolerance label suggests young drivers should not drink at all, the number written in the manual is 0.02 rather than any trace above zero. The manual adds that an under 21 driver caught with a BAC as low as 0.02 while driving will lose the license, and that drivers under 21 are twice as likely to be in alcohol related crashes.
The extra 180 days for an under 21 driver who refuses the test is not about the court case at all. The manual says it exists to make sure the young driver completes alcohol education, and it applies even if the OUI charge is later won. It is not a scheduling device and it is not a plea; refusal is a separate act with its own suspension. Vision testing has nothing to do with it. For drivers under 18 the same logic produces an additional year rather than 180 days.
For drivers under 18, refusing the chemical test adds a full year of suspension, and the manual is explicit that the outcome of the court case does not matter: even a driver who wins still must complete the alcohol education course. Thirty days is not a figure the rule uses, the education requirement is not the only consequence, and the 180 day version applies to drivers who are 18 to 20, not to those under 18. The extra year exists to get these youths into alcohol education, which is why acquittal does not cancel it.
The suspension paperwork handed over at the roadside is not a warning of something to come; the notice of suspension is effective immediately. The driver cannot legally drive away from the stop. No hearing precedes it, there is no 30 day grace period, and it does not wait for a conviction. The suspension periods themselves are set out in charts in the manual and depend on age, prior offenses and whether the driver failed or refused the test.
Massachusetts has a zero tolerance standard for drivers under 21, who face administrative sanctions for a chemical test with a BAC as low as 0.02. Drivers age 18 to 21 lose the license for 30 days plus an additional 180 days, and drivers under 18 lose it for 30 days plus an additional one year. For a first operating under the influence case, the one year can be reduced to 180 days upon entry into an approved alcohol education program. The added time is designed to get youths into alcohol education, whatever happens in court.
For drivers over 21 who fail a chemical test, the license is suspended for 30 days or until the court case ends, whichever is shorter. If the court then finds the driver guilty, the court's sanctions follow. One year and 180 days are the added youth suspensions for drivers under 18 and 18 to 21, and three years is a refusal figure for drivers with a prior OUI. The suspension ends early if the case is concluded within the 30 days.
Drivers age 18 to 21 who fail a chemical test lose the license for 30 days plus an extra 180 days under MGL chapter 90, section 24P. If this is the first OUI case, the 180 days can be waived by entering a Department of Public Health approved alcohol education program. Thirty days alone applies to drivers over 21. The extra full year applies to drivers under 18, and three years is a refusal period.
Drivers under 18 who fail a chemical test are suspended for 30 days plus one more year. In a first OUI case, that year can be reduced to 180 days upon entry into a Department of Public Health approved alcohol education program. Winning the court case does not change the requirement, because the extra suspension exists to get young drivers into alcohol education. A fine does not waive it, and saying it can never be shortened is wrong.
A driver who has had two or more operating under the influence offenses and qualifies for a hardship license or reinstatement must have an Ignition Interlock Device installed at the driver's own expense. A speeding ticket does not trigger it, and it is not required of every driver under 21 or only of commercial drivers. The device stays in use during the hardship license and for two more years after reinstatement.
The device must be used for the whole time a hardship license is held and for two more years after the license is reinstated. Removing it at reinstatement ignores that extra period. Thirty days and six months are far shorter than the rule. The device is required for drivers with two or more OUI offenses and is paid for by the driver.
Anyone under 21 who buys alcohol, has someone buy it for them, or possesses, carries or transports it without a parent or guardian faces a license suspension of 90 days to one year, and there are also fines and other penalties. A fine alone understates the law, and 30 days and five years are not the stated range. Buying or trying to buy alcohol while under 21 carries its own 180 day suspension. The manual adds that drivers under 21 are twice as likely as other drivers to be involved in alcohol related crashes, one reason the laws are stronger for them.
If you are under 21 and buy or try to buy alcohol, your license is suspended for 180 days. The broader possession and purchase rule carries 90 days to one year, and this specific attempt carries 180 days. Thirty and sixty days are too short, and two years is too long. Using a false ID in the attempt adds separate penalties, including a one-year suspension on conviction.
You may not drink while driving or have an open alcoholic drink in the vehicle, even if someone else is holding it. A conviction brings a fine of $100 to $500. Anyone under 21 is also arrested, fined and suspended. The idea that a passenger holding the drink avoids the fine is exactly what the law rules out. Twenty-five to fifty dollars is too low, and $1,000 to $2,000 is too high.
Chapter 90, section 22(e) lets the RMV suspend a license for up to six months for a false or altered license or ID, and no conviction is required. If there is a conviction, the suspension is one year. Saying the RMV cannot act without a conviction is exactly backward. Thirty days is too short and five years too long. Penalties can apply even if the person never tried to buy alcohol.

Signals and markings

Read the line nearest your lane. With one solid and one broken yellow line, the solid line on your side means you cannot cross, while drivers on the broken line side may pass when it is safe. The rule is about which side the solid line is on, not about the other direction being free to cross, and yellow lines separate opposing traffic rather than marking a shoulder. Solid means stay, broken means you may pass with care.
A flashing yellow circle is a warning: the manual says to proceed with caution, stay alert, and look both ways when crossing the intersection. It does not require a stop. The flashing red circle is the one that means the same as a stop sign. A flashing signal is a normal mode, not a broken one, and a protected left turn is shown by a green arrow, not a flashing yellow circle. Treat the flashing yellow as permission to continue only after you have slowed enough to react to anyone crossing your path.
A flashing red circle is a stop sign made of light. Come to a complete stop, yield to traffic and pedestrians, and go when it is safe. Slowing without stopping is the flashing yellow behavior, waiting for green is pointless because a flashing signal will not change, and yielding only to the right ignores the pedestrians and cross traffic the stop is meant to protect. If there is a white stop line or crosswalk line, make the stop before the line, just as you would at a STOP sign.
White lines separate traffic moving the same way, and the broken pattern tells you that once you have signaled and it is safe, you may cross the line when changing lanes. Opposing traffic is separated by yellow lines, and the right edge of the pavement is marked by a single white line. The marking you may not cross is the double solid white line, which also separates two lanes going the same direction. A solid white line may be crossed only when you need to avoid danger, so the broken line is the one that invites a planned lane change.
Massachusetts allows a left on red in one narrow case: you are on a one-way street and you are turning left onto another one-way street. Even then you stop first and yield to pedestrians and other vehicles. The right on red rule does not extend to left turns at ordinary intersections, a green arrow is a protected turn rather than a red light exception, and never is wrong because the one-way case exists. A NO TURN ON RED sign removes the option.
Yellow lane lines separate lanes of traffic moving in opposite directions, so a yellow center line tells you the traffic beyond it is coming toward you. A broken yellow line separates opposite directions and, because it is broken, lets you cross temporarily to pass when it is safe; otherwise stay to the right of it. Same direction lanes are divided by white lines, a solid white line marks the right edge of the roadway, and bicycle lanes are marked with solid white lines as well. Reading the color first tells you what you would meet if you crossed the line.
A steady green circle means go, but first you must yield to other vehicles, bicycles, or pedestrians in the road, and a left turner on a steady green must yield to oncoming traffic. Green does not hand you priority over oncoming traffic, a green arrow is not required to turn left on a steady green, and the horn changes no one's right of way. The manual adds a warning to look out for drivers who do not obey traffic signals or race through intersections, so turn only when the gap is clearly large enough.
The broken yellow line is a conditional permission. You may cross it temporarily to pass a vehicle when it is safe, and the manual sets the conditions: you must be able to see clearly at least 400 feet in front of you, and you must return to the right lane before any oncoming vehicle comes within 200 feet of you. An empty looking lane is not enough on its own, the line is not limited to driveway turns, and never describes the double solid line, not the broken one. Signal, pass, and move back to the right once you can see the passed vehicle's headlights in your mirror.
The dimming distances are fixed in the manual: 500 feet for an oncoming vehicle and 200 feet when you are following another vehicle. A thousand feet is farther than the rule requires, waiting to be flashed means you have already blinded the other driver, and weather is not the trigger, though high beams are a poor choice in fog anyway because they reflect back at you. High beams reach about 350 feet, low beams about 100, so dim early and look to the right edge of the road.
Double solid yellow means no passing in either direction. The manual says two solid yellow lines prohibit vehicles from crossing them to pass another vehicle, and that you may not cross them unless turning left when it is safe to do so. That is why a left turn into a driveway is not what the lines forbid. They set no speed, and they have nothing to do with school buses. If the vehicle ahead is slow, wait until a broken yellow line appears on your side and the way is clear rather than crossing the double line.
A green arrow is the protected turn. While it shows, the signal holds pedestrians and oncoming vehicles on red so the turn can be made without crossing anyone's path. That is different from a circular green, where oncoming traffic also has green and you must yield. Still look before you turn, because a red light runner or a pedestrian who ignores the signal can be in the crosswalk, and the arrow protects you only from those who obey it.
Roundabouts are designed so you choose your lane before entering, based on the signs on the approach, and then stay in it until your exit. That is why the manual says they reduce the need to change lanes. Turn signals are still used to show your exit, pedestrians at the crossings still have the right of way, and you still slow on the approach. Pick the lane the sign gives for your exit, yield to circulating traffic, and hold that lane through the circle.
Massachusetts treats a roundabout as a modern rotary: enter with a right turn, travel counter-clockwise, yield to vehicles already circulating and to pedestrians, and use your signals for the exit. Lane choice follows the signs on the approach, and once inside you keep the lane you chose. A four-way stop, a highway merge and a parking lot each have different rules. Look for the lane signs early so you are positioned before you reach the yield line.
The green arrow is the protected phase. It tells you that you can turn in the arrow's direction and that the signal is holding pedestrians and oncoming traffic on red while you do. It does not restrict you to going straight, you do not wait for a circular green, and it is the opposite of a prohibition. Still glance across the intersection before turning, because the protection depends on everyone else obeying their red.
The flashing yellow arrow is a permissive turn signal. It allows you to turn left or right in the direction of the arrow while oncoming traffic has a green light, so you may turn only when there is a break in that traffic. The manual says you must carefully determine that there is an adequate gap in oncoming traffic and make sure no pedestrians are in your path. It is not a protected turn, it does not restrict you to going straight, and you do not have to wait for a green arrow. Turn only when the gap is clearly enough.
The pair tells each direction its own rule. Drivers with the broken line on their side may cross to pass another vehicle when it is safe; drivers with the solid line closer to them cannot cross the lines. So the marking never frees both sides at once, and it never shuts out both sides either, because the broken side stays open when it is safe. When you do pass from the broken side, you must be able to see clearly at least 400 feet ahead and return to the right lane before an oncoming vehicle comes within 200 feet. Check which line is nearest your lane before you commit to a pass.
Yellow is the start of the stop, not a sprint signal. The steady yellow means the light is changing from green to red, so you stop if you can do so safely, and if you are already stopped at the intersection or the stop line you may not proceed. Accelerating on yellow is what lands cars in the intersection when cross traffic gets green. Pedestrians are not the only trigger for stopping, and no turn is free of yielding on a yellow.
Some Massachusetts crosswalk signals include a numeric countdown timer, and the manual is clear about what happens at zero: pedestrians who are already in the crosswalk when the count reaches zero have the right of way and must be allowed to finish crossing. Turning and through vehicles must wait for them, and the crosswalk is not closed to someone who is already in it. As a driver you must yield to pedestrians using a crosswalk in your path and never let your vehicle block a crosswalk.
Pedestrians must obey the WALK and DON'T WALK signals just as drivers obey the lights. DON'T WALK means do not begin to cross; someone already in the crosswalk should finish crossing. Dashing across ahead of the change or crossing because the street looks empty ignores the turning traffic the manual warns pedestrians to watch for. A police officer is not required to cross legally; push the button where there is one and wait for the WALK signal, then look left and right before stepping off the curb.
The signal has to reach other drivers early enough to matter, so the manual sets 100 feet on ordinary roads and 500 feet on a highway, where speeds are higher. Fifty feet is too late at any speed, and the road and highway numbers are not reversed. Signaling only when someone is nearby fails because the vehicle you did not see is the one that needed the warning. Signal before you brake so your intention is known first.
The manual says you can make a U-turn if your path is clear and it is safe, but not at the crest of a hill, near a curve, or anyplace where you or other drivers cannot see 500 feet away. Hills and curves hide oncoming traffic, so a driver could appear while you are turning across the road. The rule is about sight distance, not a posted speed, a distance from a crosswalk, or the time of day. You also cannot make a U-turn where a NO U-TURN sign is posted, and you may only start one from the lane closest to the center line.
Double yellow lines forbid passing in both directions, but they do not seal off the driveways and side streets on the far side of the road. The manual's rule is that you do not cross a double yellow line unless you are turning left. Passing a slow vehicle, an empty road and the type of vehicle do not change the marking. Signal early, check for oncoming traffic, and cross at a right angle rather than driving along the wrong side.
White lines are for traffic going the same way. A solid white line marks the right edge of the roadway or separates same direction lanes, including bicycle lanes, and the manual notes you can go in the same direction on both sides of it, except the shoulder, but should not cross it unless you need to avoid danger. Opposite directions are separated by yellow, railroad crossings are marked by crossbucks and warning signs rather than this line, and no line is decorative. A broken white line, by contrast, may be crossed to change lanes when it is safe.
A two-way left-turn lane is shared by both directions for one purpose: setting up left turns. Drivers from either side may enter it to turn left, so those are permitted uses. What the manual forbids is traveling along it as if it were a through lane, which puts you head on with someone entering from the other direction. Enter close to your turn, signal, and wait there for a gap.

Parking

With no curb there is nothing to catch a rolling wheel, so the goal is to send the car off the road rather than into traffic if the brake fails. Massachusetts says to turn the wheels inward, toward the edge of the road, whether you face uphill or downhill. Turning outward would aim a runaway car into the travel lane, straight wheels give it a free path, and the parking brake is a backup rather than a substitute for wheel position. Set the brake, shift to park or leave a manual in gear, then turn the wheels.
Uphill against a curb is the one case where the wheels turn outward. If the brake fails the car rolls backward, the back of the front tire meets the curb, and the curb stops it. Turning inward would let the car roll back into the street, straight wheels give no protection, and the sidewalk is the wrong direction for a backward roll. Downhill against a curb reverses the answer, with the wheels turned inward toward the curb, and with no curb the wheels always turn toward the road edge.
Facing downhill, a rolling car moves forward, so the front wheels are turned inward toward the curb; if the brake lets go, the front tire rolls into the curb and stops. Outward is the uphill against a curb answer and would steer the car into the lane, straight wheels provide no backstop, and the grade is exactly why wheel position matters. The manual pairs this with setting the parking brake and shifting into park, or leaving a manual transmission in gear.
Massachusetts prohibits parking within ten feet of a fire hydrant or fire lane. Fifteen feet is a tempting guess, but it is not the Massachusetts hydrant distance. Twenty feet is the Massachusetts distance from an intersection, and five feet is too close. The same list bars parking in a crosswalk, in front of a driveway, and facing the wrong way.
Massachusetts bans parking within 20 feet of an intersection. Ten feet is the hydrant and fire lane distance, and thirty and fifty feet are not part of this Massachusetts rule. The same list of places you may not park includes a crosswalk, the space in front of a driveway or a handicap access ramp, a posted loading zone, a bus stop and a bicycle lane. Fines for most of these violations are set by city or town ordinance, and unpaid parking tickets can stop you from renewing your license or registration.
Parking in a zone posted for HP-DV parking without the right plates or placard brings a $300 fine for a first offense. Wrongful use of a disabled person or veteran plate or placard costs at least $500. Twenty-five and one hundred dollars are far below the fine, and $1,000 is not the stated amount. Parking in the striped crosshatch area next to the space is also illegal, even with a placard.
A bus stop is on the Massachusetts list of places where you may not park, and it is one of the few entries on that list where the manual names the penalty itself: $100 for parking in a posted bus stop. Most other parking fines are set by city or town ordinance and vary. Three hundred dollars is the first offense fine for a disabled parking zone, and fifteen dollars is the bottom of the Turnpike range, so neither is the bus stop amount. Twenty five dollars is far too low.
Parking on a hill asks two things of you. With an automatic transmission, set your parking brake and shift into park; with a manual transmission, set the parking brake and leave the vehicle in gear. Then turn the front wheels in the proper direction so the car will not roll into traffic if the brake fails. Neutral with no brake lets the car roll, leaving it in drive with the engine running is unsafe, and park alone skips the parking brake that the manual requires for both types.

Safe driving

The passenger restriction is the heart of the Junior Operator law. For six months a new JOL holder may not carry any passenger under 18 who is not immediate family, unless a qualifying adult is in the seat beside the driver: at least 21 years old, licensed in Massachusetts or another state, with at least one year of driving experience. There is no one passenger allowance and no daylight exception, but the rule is not absolute, because the supervising adult lifts it. The clock stops during any suspension and resumes afterward.
A lane change goes wrong in the blind spot, so the manual's advice is short: signal early, then check twice, once in the mirrors and once over your shoulder, before you move. Signaling after the move defeats the purpose, the horn is not a lane change tool, and braking hard before moving invites a rear end collision. On highways the manual asks for extra attention during lane changes and merges because closing speeds are higher.
Water changes what the tires can do. The manual says rain and wet roads make it harder to start, stop and turn, which is a traction problem, not just a visibility one, though hard rain, fog and mist also make it harder to see. Wet pavement never shortens stopping distance, and the effect does not disappear at low speed; the first minutes of rain on an oily road are slippery at any pace. Slow down, leave more room, and avoid sudden inputs.
Curves and blind spots share the same rule: slow down before you get there. A vehicle is more likely to leave the road at a curve, and anything hidden beyond a crest or bend leaves you no time if you arrive fast. Holding speed for momentum is a racing idea, not a driving manual one. Moving toward the center puts you in the path of oncoming traffic, and flashing high beams does not reveal the road ahead. Keep to the right and ease off before the curve, not in it.
The manual's checklist for passing a bicycle or moped begins with lowering your speed. A slower pass gives you time to judge the space, gives the rider less wind blast, and lets you stop if the bike swerves around a pothole. Repeated horn use startles riders, passing close is the crash the rule prevents, and speeding up removes your margin. After lowering speed, give the rider room and do not cut back to the right until you are safely past.
Passing is not a right you exercise whenever someone ahead is slower; the manual limits it to when it is necessary and safe. A vehicle under the limit is not by itself a reason, a fixed sight distance is not the test, and passing is not restricted to multi-lane roads. The judgment covers oncoming traffic, sight distance, road markings and the room you can give the person you are overtaking. When the pass is not clearly needed and clearly safe, stay behind.
The manual calls the mistake cutting off the bicycle. When you pass a bike that is on your right and traveling your way, you may not move back to the right until you have safely cleared it, which means the whole bicycle is behind you with room to spare. Being bumper ahead is not clear, a signal does not create space, and a fixed footage is not the standard. A right turn just after passing a cyclist is the same hazard and needs the same patience.
Massachusetts measures following distance in time. Pick an object ahead, like a sign post or a tree, and when the vehicle in front reaches it count one one thousand, two one thousand, three one thousand; if you reach the object before you finish, you are too close. The manual calls three seconds a minimum for good road conditions and moderate traffic, asks you to count more for added safety, and wants at least four seconds behind a motorcycle and ten behind heavy equipment. Car lengths, a fixed footage and a single second are not the rule the manual gives.
Not every school vehicle is a big yellow bus. The manual says school pupil transport vehicles, like vans, station wagons, or family sedans, have flashing red lights and SCHOOL BUS signs on top, and drivers use these warning signals when letting pupils on and off. If such a vehicle has its lights flashing and a stop sign extended, you must stop just as you would for a yellow bus. Orange warning signs on the back mark slow moving vehicles, and blue lights are not part of the description. When in doubt, stop.
Arrival order settles most four-way stops: the first vehicle to reach the intersection has the right of way once it has stopped, and the others follow in turn. The vehicle on the left yields to the right only when two vehicles arrive at the same moment, size never confers priority, and going straight does not override an earlier arrival. Make eye contact, take your turn deliberately, and do not wave others through out of turn.
Children appear where children gather. Under the heading Be Extra Careful of Children, the manual says children are unpredictable and hard to see, and it names school zones, parks, bus stops and playgrounds as the places to be careful. Highways, tunnels and toll plazas have their own hazards, but the manual does not single them out for children. Slow down in these areas, scan the sidewalks and the spaces between parked cars, and be ready to stop, because a child may move into the road with little warning.
Massachusetts doubles the speeding fine in a posted work zone. The manual states the rule without exceptions, so it gives no waiver when no workers happen to be visible, the temporary nature of a work zone limit does not soften the fine, and the fine is not the ordinary amount. The manual explains elsewhere that orange warning signs and work equipment usually mean people are on foot nearby. When approaching a work zone, reduce your speed, watch for sudden changes in road direction or condition, and be prepared to stop.
The White Cane Law gives blind pedestrians a stronger protection than ordinary yielding: when a person with a white cane or a guide dog is crossing a street, you must stop completely. The manual adds that you should remain stopped until the person has safely crossed, should not honk or wave the person on, and should never pass another stopped vehicle. The rule is about the street crossing, not only a marked crosswalk. The white cane and the guide dog are the signals to look for, and once you see them, stop and wait.
In 2023 distracted driving resulted in 3,275 deaths. Massachusetts prohibits hand held mobile electronic device use while driving under Chapter 90, Section 13B, and drivers under 18 cannot use any mobile electronic device for any reason while driving. Adults may use hands free mode only, and fines and other penalties apply to violators of the hands free law, with escalating fines for repeat offenses.
Massachusetts ties lights to wipers: if the weather makes you run the wipers, the law requires headlights and taillights as well. That covers rain, mist, sleet and snow, not snow alone, and it applies in daylight, not only after sunset. There is no visibility measurement to make; the wiper switch is the trigger. Lights in the rain are less about seeing than about being seen by drivers looking through a wet windshield.
Hydroplaning happens when your tires are riding on water and have no contact with the road, and the manual's blunt diagnosis is that it means you are driving too fast. It is caused by road conditions, water and speed. If it starts, slowly step off the gas pedal and never hit the brakes or turn suddenly, because you may lose control and skid. Braking does not help when the tires have no contact with the road, accelerating adds the speed that caused the problem, and the manual sets no speed below which it cannot happen. Slow down as soon as the rain starts.
Massachusetts enforces the safety belt law as a secondary offense: the $25 fine is issued only when the vehicle has been stopped for some other traffic violation. The fine is not $100 or $500 and it does not depend on a crash. The manual's larger point is that belts cut the chance of death or serious injury in a crash by about half, so the fine is the least of the reasons to buckle up. The driver can also be fined for each unbelted passenger age 12 to 15.
The manual asks for more space behind a motorcycle than behind another vehicle: at least four seconds instead of the usual three second minimum. It also notes that motorcyclists need to move within a lane to avoid road debris, potholes, or surface oil, and that you must never move into the same lane space as a motorcycle. Two seconds or one second is below even the three second minimum for a car, and the same three seconds ignores the extra space the manual asks for. Watch for motorcycles in your blind spots and signal early before changing lanes.
If your brakes and tires are working and the road is dry and level, at 60 mph it takes about 292 feet to react to a hazard, step on the brake and safely stop, almost a whole football field. At 50 mph the total is about 215 feet, 55 feet of reaction distance plus 160 feet of braking, and at just 30 mph it is about 104 feet. The manual adds that these numbers are for education only and that actual distances grow on wet, slippery or uneven pavement, going downhill, or in bigger, heavier vehicles.
According to the National Highway Traffic Safety Administration, 633 people died in 2020 from drowsy driving related crashes. The manual says these crashes most often happen between midnight and 6 a.m. or in the late afternoon, involve a single driver with no passengers, and occur on rural roads and highways. The only true protection is to get enough sleep and not drive when you feel tired; coffee or a nap in a safe place helps only for a short time. Alcohol can also increase drowsiness.
Right of way is something you give, not something you take, and the manual lists situations where you must yield even when you might expect priority. One example is any animal that someone is leading, riding or driving: you always give it the right of way. Posted limits, vehicle size and going straight do not confer priority. Slow near horses and livestock, do not honk, and pass only when the animal is calm and the road is clear.
The manual pairs traction and vision when it talks about bad weather: rain and wet roads make it harder to start, stop and turn, and hard rain, fog and mist make it harder to see. Headlights help others see you but do not restore your view, fog scatters light and worsens contrast, and snow is only one of several conditions that blind you. Slow to a speed that lets you stop within what you can see, and use low beams in fog.
A junior operator's first conviction for using a mobile electronic device brings a $100 fine and a 60-day suspension of the license or permit, and the license is not reinstated until the driver completes a program that encourages attitudinal changes in young drivers. The $250 fine with a 180-day suspension is the penalty for a second offense, so picking it confuses the tiers. There is no warning-only first offense. Remember the ladder: 100 dollars and 60 days first, then it climbs.
The safest response to a tailgater is to get out of the way: change lanes or pull over and let them pass. Brake checking invites the rear end crash you are trying to avoid, speeding up only moves the problem faster, and stopping in a travel lane is dangerous. If you cannot move over, keep your own following distance long so you never have to brake suddenly with someone on your bumper.
The three second rule is the minimum for good road conditions and moderate traffic, and the manual lists situations that call for more: bad drivers, rain, snow, ice or other poor weather or road conditions, blind or obstructed driveways and roads, drivers backing out of parking spaces or driveways, and children playing in yards or near the road. It also asks for at least four seconds behind a motorcycle and ten behind heavy equipment. Sunny days are the baseline, being late is a reason to leave earlier, and one way streets are not on the list. When traction drops, the extra space is what lets you stop safely.
The advice is to defuse, not compete: get out of the way, do not challenge the driver, avoid eye contact, ignore rude gestures and keep your safety belt on. Staring, gesturing or blocking escalates a confrontation with someone who has already shown poor judgment, and following them puts you in a chase. If it becomes an emergency, call the State Police at 911 and let them handle it. Control your own anger so the situation does not get worse.
Animals are easily scared by motor vehicles, so the manual tells you to always give the right of way to an animal that someone is leading, riding or driving, and to be careful and slow down near it. Stop if the animal is coming toward you or crossing your path, allow plenty of room when passing one traveling your way, and do not honk your horn or make a loud noise. If the animal you are passing looks scared, you must pull to the side and stop. Passing close, speeding up and honking are the opposite of these steps. Proceed only when it is safe.
Steer into the skid. If the rear is sliding left, turn the wheel left so the front tires point where the car is actually going, which lets them regain grip and straighten the car. Steering away sends the rear the other way in a fishtail, holding straight does nothing, and braking makes the skid worse. Ease off the gas, shift to neutral if you can, and make small corrections as the tires catch.
At a speed of 20 mph, 13 percent of pedestrians hit are seriously injured or killed, and the manual shows how fast that share climbs: 40 percent at 30 mph and 73 percent at 40 mph. It calls the speed of vehicles the leading threat to pedestrian safety. About one third of all motor vehicle fatalities involve speeding, and drivers must yield to pedestrians entering or using a crosswalk in their travel path. Slow down wherever people walk, and stop for anyone in a crosswalk.
Highway speed limits are usually between 45 and 65 mph on expressways and freeways such as Routes 90, 495 and 128, which are entered and exited at interchanges. Yield to drivers already on the highway when merging, use the right lane for driving unless passing, and take extra care exiting where breakdown lanes serve as travel lanes during posted hours.
Massachusetts requires a safe passing distance of at least four feet between your vehicle and a vulnerable road user. Three feet is a tempting wrong answer, but Massachusetts sets four. Two feet is far too close, and six feet is more than the law requires. If it is safe, you may use part of the next lane or cross the center line to give that room, but you must still obey the speed limit.
The Massachusetts definition lists pedestrians, roadside workers, bicyclists, people riding horses or horse drawn carriages, and people using wheelchairs, personal mobility devices, motorized bicycles, scooters, skateboards and roller skates. A roadside worker is on the list. A pickup driver and a bus passenger are inside motor vehicles, and motorcyclists are not named in the definition. Every listed user gets the four foot passing distance.
State law says you must not drive closer than eight feet to a trolley passenger step when the trolley is letting passengers on or off. Two feet would put people stepping off the trolley in danger. Fifteen feet is the distance for stopping at a railroad signal or gate, and 25 feet is not a Massachusetts trolley figure. Drivers should also look for oncoming trolleys before crossing tracks.
When the lights begin to flash, you must stop at least 15 feet before the light post or gate and stay stopped until the gate rises and the lights stop. Stopping right at the gate or five feet from the tracks leaves too little room. Fifty feet is not the stated rule. Failure to stop is a violation with a heavy fine, and drivers must never go around a lowered gate even if no train is visible.
Pedestrians must use a sidewalk when one is available. When there is none, the manual says to walk on the shoulder facing traffic, so the walker can see approaching vehicles and step aside. Walking with traffic at your back hides the danger, the travel lane is not a walking space, and pedestrians must never walk along or across expressways, interstate highways, or turnpikes. Drivers should expect walkers on shoulders of roads without sidewalks, especially at night, when the manual urges bright or reflective clothing.
Massachusetts law lets bicyclists use the full lane anywhere, anytime, and on any street, even if there is a bike lane. The only exception is limited access or express state highways posted with signs prohibiting bicycles. Drivers should not expect a rider to move into the bike lane to clear the way, and should pass only when it is safe, leaving at least four feet. No weekend rule or minimum riding speed limits the right, and a bicyclist on a public way must obey the same basic traffic laws as drivers.

Road signs

A stop sign never softens into a yield. The manual says it always means come to a complete halt, and the duty applies to each vehicle that reaches the sign, so the second and third cars in line stop at the sign in turn rather than following the leader through. Stopping only when cross traffic is visible misses the pedestrians and the cars hidden by parked vehicles. Stop before the line or crosswalk, look both ways, and go only when the way is clear.
Yellow, including the bright fluorescent yellow green version, is the warning color. These signs announce a hazard or a change in conditions ahead: the road layout may be changing, a school zone may be coming, or there may be a special situation ahead, and the manual says to slow down and obey the sign. Regulatory signs, which state laws, have a red or white background, and green guide signs give highway directions, distances and destinations. Nothing about a yellow warning sign means the road is closed. Read yellow as a prompt to slow and look.
The yield sign asks for judgment rather than an automatic stop. Slow down and be prepared to stop, let vehicles, bicyclists and pedestrians go before you proceed, and come to a complete stop if traffic conditions require it. A full stop every time is the stop sign rule, speeding up to beat traffic is the crash the sign exists to prevent, and police presence has nothing to do with it. The yield sign hands you the decision, so look well ahead as you approach and give yourself room to stop if someone has the right of way.
The round yellow sign with the crossed X and the letters RR is the advance warning for a railroad crossing. It is posted before the tracks so you can slow, look and listen; the crossing itself is marked with the white crossbuck, and a small sign under the crossbuck gives the number of tracks when there is more than one. Rotaries and hospitals use different shapes and colors, and sharp curves are shown with an arrow. Treat the round sign as the cue to be ready to stop.
A painted stop line tells you exactly where the stop belongs: before the line, not on it or past it. The manual says that when approaching a STOP sign you must stop before any crosswalk or stop line painted on the pavement, come to a complete stop, yield to pedestrians or other vehicles, and go carefully. Just slowing down is not enough. Pulling the front bumper over the line is not a stopping point, there is no 20 foot zone, and the stop is required whether or not traffic is visible, because the sign applies to each vehicle that comes to it.
Yield lines and crosswalk lines are stop points when a pedestrian is using the crossing. The manual requires you to stop behind the stop lines, yield lines and crosswalk lines whenever a stop or yield sign, a traffic signal or a pedestrian in the crosswalk calls for it. Stopping inside the crosswalk blocks the very space the pedestrian needs, and stopping beyond it means you drove through the crossing. A yield sign does require a stop whenever a stop is needed to yield.
Facing the wrong way is not only a driving error; the Massachusetts list of places where you may not park includes leaving a vehicle facing the wrong way against traffic, alongside parking on a sidewalk, in a crosswalk, double parked, or during a weather or roadway emergency. The list gives no residential street exception, hazard lights do not legalize it, and there is no short duration allowance. The manual adds that fines for most of these violations are set by city or town ordinance, and unpaid parking tickets can stop you from renewing your license or registration.
On a one-way street there is no opposing traffic, so a center yellow line would make no sense. Massachusetts instead uses a single yellow line to mark the left edge of the pavement on one-way streets and divided highways, telling you where the road ends on the side that would normally face oncoming cars. Bicycle lanes and parking areas are marked in white. The rule pairs with the ONE WAY sign: yellow on the far left edge confirms you are traveling with the flow.
The sign is absolute where it is posted: you cannot make a U-turn there, for any vehicle, regardless of a stop or an empty road. The manual notes that NO U-TURN is one of the regulatory signs that uses only an image. Where no sign forbids it, a U-turn is allowed only if your path is clear and it is safe, and only from the lane closest to the center line. Even without a sign, never make a U-turn at the crest of a hill, near a curve, or anyplace where you or other drivers cannot see 500 feet away.
Massachusetts reads the red circle with a diagonal slash as a universal prohibition: whatever is drawn inside is not allowed. Over a left arrow it forbids the left turn at that location, with no stop and go exception and no vehicle class exemption. It does not close a lane; it forbids a movement. The same symbol over a U shaped arrow bans U-turns and over a right arrow bans right turns, so read the arrow inside the circle before you commit to the lane.
The manual says that signs using a red circle with a diagonal slash mean that something is prohibited, and the thing prohibited is the movement drawn inside the circle, here the right turn. A green light does not override the sign, the prohibition is not limited to heavy vehicles, and unless an added plaque limits it to certain hours it applies all day. These regulatory signs inform drivers of traffic laws, some using only images, so learn to read the symbol rather than wait for words. Continue straight and turn at the next legal opportunity.
Massachusetts sorts signs by how they speak. Some, like NO U-TURN, use only an image; some combine words and images; and some, like SPEED LIMIT signs, may include only words. There is no speedometer picture, the red slash is reserved for prohibitions, and yellow is the warning color rather than the regulatory white. Speed limit signs can also carry flashing yellow lights or apply only during posted hours, so read the whole sign, not just the number.
Keeping right is the default position in Massachusetts. The manual's rules for passing open with it: in general, the law requires you to drive on the right side of the road, and when passing is allowed you should pass on the left, with passing on the right allowed only in certain situations. The KEEP RIGHT sign applies that default at an obstruction by telling you which side to use. Using the left because it is empty puts you in the oncoming lane, straddling the center line leaves the right side, and a center lane may be a common left turn lane you may not travel in.
The crossbuck is mounted at the crossing itself, marking the exact point where train tracks cross the road. When more than one track crosses, the number of tracks is posted below the crossbuck, so you know how many sets of rails you must clear. Advance warning comes from the round sign posted before the crossing, not from the crossbuck. The manual also says the toll free Emergency Notification System number is located in the middle of the crossbuck or on a metal box near the crossing, for use if a vehicle is stuck on the tracks.
The pentagon means children, and near schools Massachusetts sets the limit at 20 mph. Fifteen is lower than the state uses, twenty five is a city option for thickly settled areas, and thirty is the thickly settled default that the school zone reduces. The manual tells you to look closely for signs saying you are approaching or entering a school zone, since the limit may be shown with flashing yellow lights or posted for certain hours, and to watch for children crossing the street or riding bicycles.
The sign gives advance notice; the law behind it is simple. A driver must yield to any pedestrian entering or using a crosswalk in the travel path, must never let the vehicle block a crosswalk, and must never pass a vehicle that is stopped or slowing for a pedestrian. The horn does not transfer the right of way. The manual also singles out blind pedestrians with a white cane or guide dog, for whom you must stop completely. Slow when you see the sign and scan both curbs.
The advance sign tells you a signal is coming; the steady yellow circle tells you it is about to turn red. Yellow is not a malfunction and it is not an invitation to accelerate; it is the moment to stop if you can do so safely, and to clear the intersection only if you are already too close to stop. Turns are governed by arrows and posted signs, not by the yellow phase. Seeing the SIGNAL AHEAD sign, ease off so a yellow does not catch you at full speed.
The warning sign buys you braking distance; the stop sign itself still demands a complete halt before you go on. The manual says to stop before any crosswalk or stop line, come to a complete stop, yield to pedestrians or other vehicles, and go carefully, and it adds that just slowing down is not enough. Seeing no traffic does not excuse the stop, since the sign applies to each vehicle that comes to it. Flashing headlights is not a substitute for stopping. Begin slowing at the STOP AHEAD sign so the stop is smooth.
Merging works when everyone moves early and predictably. In a work zone the cones, barrels and arrow panels are placed before the closure so you have notice to merge into the adjacent open lane while there is still room. Stopping in a live lane invites a rear end crash, threading between the devices puts you in the closed lane, and racing ahead of the merge forces a late, dangerous squeeze. Signal, check your mirror and shoulder, and blend in.
The manual says portable arrow boards on multiple lane roadways show that the shoulder or a lane is closed and which lane is open for travel. They sit before the work area, inside the closed lane, so drivers in that lane get notice to merge while it is still safe. They are not a parking zone, they do not restore the speed limit, and they do not create a bicycle lane. Drums, cones and tubular markers lined up at an angle do a similar job, and when you see them you should carefully merge into the adjacent travel lane.
Yellow is the color that says oncoming. On a two-way road the center is marked in yellow, and a double line with one solid and one broken side tells each direction whether passing is allowed. Broken white lines separate lanes going the same way, a double solid white line separates same direction lanes you may not cross, and the white diamond marks an HOV restriction. When the TWO-WAY TRAFFIC sign appears after a one-way stretch, look for the yellow center line and keep right of it.
A divided highway is defined by its layout, not its speed or lane count: separate roadways for each direction, split by a median or barrier. A four-lane road with only a painted center line is not divided, a center turn lane is a shared lane rather than a division, and the speed limit has nothing to do with the definition. The sign matters because on a divided highway you keep to the right roadway, and the yellow line will be on your left edge.
The sign is posted where water, ice or oil makes the surface treacherous. The manual's warning is that a slippery road lets the tires lose traction, and on water the car can hydroplane, riding on a film with almost no grip. Brakes and steering do not improve; they lose effect. Speed is not a safe harbor, since roads are often most slippery when rain first mixes with oil. Slow before the marked stretch, avoid sudden inputs, and leave extra room.
A blind curve hides whatever is beyond it, so the manual's instruction is to keep to the right and slow down before you enter. Moving toward the center puts you in the oncoming lane at the worst possible moment, holding speed leaves no margin if something is stopped ahead, and high beams do not see around a bend. Brake before the curve, steer smoothly through it, and accelerate gently once you can see the exit.
The manual states the risk plainly: your vehicle is more likely to leave the road at a curve. It pairs that warning with the rule to always slow down near a curve or an area where you cannot see clearly ahead, and with the braking tip to brake early and gently when preparing to stop or turn. Straight highways, parking lots and railroad crossings each have their own hazards, but the manual names curves as the place a vehicle tends to run off. The right angle arrow is your cue that the turn ahead is tight. Slow first, then steer.
Massachusetts gives the bigger road the priority at this kind of crossing. A driver on a single or two-lane road who reaches a divided highway or a roadway with three or more lanes must yield to the traffic on the larger road. The driver on the larger road does not yield, arrival order is the rule for equal roads or four-way stops, and the larger road often has no stop sign at all. The crossroad sign is your prompt to slow and prepare to yield.
A NO PASSING ZONE sign and a double solid yellow line on the pavement say the same thing: do not cross to pass. The manual says two solid yellow lines prohibit vehicles from crossing them to pass another vehicle, and you may cross them only to turn left when it is safe. A broken yellow line allows a pass when it is safe, broken white lines separate lanes going the same direction, and a single solid white line marks the right edge of the roadway. With one solid and one broken yellow line, only the driver beside the broken line may pass.
Near schools the speed limit is 20 mph, and it can be posted in various ways: speed limit signs may have flashing yellow lights or be posted for certain hours of the day. The manual therefore tells drivers to look closely for signs announcing that they are approaching or entering a school zone. There are no vacation speed increases posted, truck route signs are unrelated, and the school's own hours are not what the manual tells you to look for. Slow at the first sign and watch for children, school safety patrols and crossing guards.
In Massachusetts there is usually a round warning sign before a railroad crossing. When you see it, slow down and prepare to stop, and if you see or hear a train coming, do not speed up and try to beat the train to the crossing. The point where the tracks cross the road is marked with a white crossbuck sign, and if more than one track crosses, the number of tracks is posted below the crossbuck. A crossing may also have red flashing lights and a bell. Octagonal, pentagonal, and rectangular are not the shape the manual gives for this advance warning sign.
A broken yellow line separates lanes of traffic moving in opposite directions, so your lane is to the right of it. The manual says to stay to the right of the line unless you are passing a vehicle in front of you, and to cross it only temporarily when it is safe. Driving on either side freely or staying left puts you in the oncoming lane, and the line has nothing to do with parking. When you do pass, you must be able to see clearly at least 400 feet ahead and return to the right lane before any oncoming vehicle comes within 200 feet.
The color code lets you sort a sign before you can read it. In the manual's list, yellow is general warning, green is direction, blue is motorist services such as gas, food and hotels, and brown is a recreational, historic or scenic site. A yellow sign means a hazard or change ahead, so ease off and look for the specific condition it names. Fluorescent yellow green is used for school zone, bicycle, pedestrian and curve warnings, and orange for construction or maintenance warnings.
Regulatory signs carry the rules: speed limits, turn restrictions, one-way streets, parking limits. They have a red or white background, and some use only words while others use only symbols. Hazards are the job of yellow warning signs, distances belong to green guide signs, and attractions are shown in brown. When a regulatory sign appears, treat it as a law you can be cited for breaking rather than a suggestion.
In the manual's sign color code, orange means construction or maintenance warning. The manual adds that orange warning signs and work equipment usually mean people are on foot nearby, that you should follow road work signs and obey any police officer or civil flagger, and that speeding fines are doubled in posted work zones. Red is stop or prohibition, green is direction, and blue is motorist services. When orange appears, reduce your speed, stay alert for sudden changes in road direction or condition, and be prepared to stop.
Blue guide signs list motorist services: gas, food, lodging and evacuation routes. Highway directions and interchange guidance are on green, public recreation areas, parks and scenic sites on brown, and regulations on white or red. Blue signs help you plan a stop without pulling off to search, which keeps you from making sudden exit decisions on the highway. The manual groups them with green direction signs and brown recreation signs under the guide sign category.
Green is the direction color: route markers, distance and destination signs, and the overhead signs that guide you through interchanges. Hazards are yellow, motorist services are blue, and work zones are orange. Reading green signs early lets you choose your lane well before the exit, which is safer than a last second change across traffic. In Massachusetts, numbered state highway routes are posted on white rectangular signs with black letters and borders, while interstate highway signs are blue, red and white shields.
The red circle with a slash is the universal prohibition symbol, used on regulatory signs like no U-turn, no left turn and no trucks. It never means something is required, hazards are warned on yellow, and services appear on blue. When you see the slash, whatever is pictured inside the circle is not allowed at that location, so plan a different route or maneuver.
The manual gives each sign color a job so you can sort a sign before you can read it. Brown marks a recreational, historic, or scenic site such as a park or landmark. Construction and maintenance warnings are orange, motorist services like gas, food, and hotels are blue, and school zone, bicycle, pedestrian, and curve warnings use fluorescent yellow green. Knowing that brown is a destination sign, not a warning, tells you there is nothing ahead that requires you to slow or stop.
The manual's color list gives fluorescent pink a single job: incident management signs. When you see that color, the sign is about managing an incident on the road rather than a permanent rule or a service. Purple is the color for electronic toll collection signs, school zone, bicycle, pedestrian, and curve warnings use fluorescent yellow green, and recreational, historic, or scenic sites are brown. Learning the full color list lets you sort a sign by color long before you can read its words.
Purple has one narrow use in the manual's color list: electronic toll collection signs. Evacuation routes share blue with motorist services such as gas, food, and hotels, incident management signs are fluorescent pink, and regulations such as speed limits are black and white. Because the shapes and colors of traffic signs carry meaning, spotting purple from a distance tells you the sign concerns tolling, which gives you more time to read it and choose your lane calmly.

Laws and paperwork

The Junior Operator Law draws a bright line by age: any car driver or motorcyclist from 16 and a half up to 18 is a Junior Operator, and the passenger, night and phone restrictions attach automatically. Permit holders over 18 are not covered, and a 20 year old with a new license is an adult under this law even though other rules still treat under 21 drivers specially. The law is not limited to motorcyclists. The RMV also adds the Junior Operator restriction, code letter I, to the license of every operator under age 18.
The JOL restrictions come with an escalating ladder of suspensions. A first violation of either the passenger rule or the night driving rule brings a 60 day suspension, a second brings 180 days, and any further violation costs a full year. Fourteen days is the wait after a failed road test, not a suspension. The manual also notes that the six month passenger restriction clock stops during any suspension, so a teen who loses the license early ends up restricted for longer overall.
The law is written around the device, not the conversation. An adult driver may use a phone or other electronic device only in hands-free mode; holding it to text, dial or watch is prohibited regardless of speed or the length of the call. The low speed and short call answers describe habits the law was written to end, and the answer allowing use whenever the phone is not held to the ear misstates the rule, since holding the device at all is the violation. Teen drivers face a stricter rule and may not use devices even hands-free.
Massachusetts prohibits routine electronic-device use by drivers under 18, including hands-free calls. The statute provides an emergency defense for reporting a disabled vehicle, needed medical assistance, a safety emergency requiring responders, or an accident. Navigation is not carved out, and a parent in the passenger seat does not change the rule. The reasoning is that a new driver has little spare attention to give a conversation or a screen. Set the route before moving, and let calls wait until the car is parked.
Speeding is treated harshly for Junior Operators. The first citation costs a 90 day suspension and any later one costs a full year, and the manual's suspension chart adds that every such offense requires a new learner's permit exam. Adults, by contrast, face a 30 day suspension only after three speeding violations in a year. There is no free first or second offense for a JOL holder, and the first citation does not jump straight to a year. Losing the license also pauses the JOL passenger restriction clock, which then resumes after reinstatement.
Three speeding violations within a 12 month period trigger an automatic 30 day license suspension for a Massachusetts driver who does not hold a Junior Operator license, and the 12 month period starts when the driver either pays or is found guilty for the first citation. A warning is not part of the system at that point, a one year suspension is what a Junior Operator faces for a later speeding citation, and retaking the road test is not the penalty. Speeding violations are also surchargeable events, and three such events within two years bring a required driver retraining course.
The exception is narrow and physical. When a divided highway has a barrier between the two directions, traffic on the opposite side does not stop for a bus loading on the far roadway, because children cannot cross the barrier to reach it. A high posted speed, the kind of vehicle you drive, and whether you happen to see children change nothing. A grass median without a barrier is not enough for the exception. If you are unsure whether a barrier exists, stop.
The Massachusetts ladder starts at 16 with the learner's permit for a car or motorcycle. Fifteen is too young, sixteen and a half is the earliest age for the Junior Operator license itself, and seventeen is not the permit age. The permit lets the holder practice with a licensed operator who is at least 21 in the passenger seat, and it is valid for up to two years. Applicants under 18 must also hold the permit for six months and complete driver education before the road test.
The permit exam has a clock as well as a score. Massachusetts requires 18 correct answers within 25 minutes, and the audio version of the exam carries the same 25 minute limit. The other combinations either overstate the number needed or invent a longer time window. Cheating carries a separate penalty: anyone found responsible cannot hold any license or permit for 60 days. Using a driver's manual, other reference material or an electronic device during the exam counts as cheating.
Driver education alone does not qualify a teen for a Massachusetts license. On top of the classroom and in car training, the applicant must log at least 40 hours of supervised driving, and a parent or guardian certifies those hours in a signed statement. Twelve hours is the in car training figure from the driver education program and six hours is the observation requirement, so both are easy to confuse with the practice total. One hundred hours is more than the state requires. The RMV accepts 30 supervised hours instead when the teen completes a driver skills development program.
The Junior Operator night restriction runs from 12:30 a.m. to 5:00 a.m. During those hours a JOL holder may drive only with a parent or legal guardian in the car, and a holder found driving in violation may be charged with operating without being licensed, which is a criminal violation. Ten p.m., midnight and sunset are not the starting points the manual gives. It adds that in the half hours at each end of the window, police enforce the restriction only after a lawful stop for another reason, but the restriction itself still applies.
Junior Operators carry an extra layer of consequences. For offenses such as operating under the influence, operating to endanger, leaving the scene of a crash, reckless or negligent operation, loaning a license or permit, or motor vehicle homicide, the RMV adds a 180 day suspension for a first offense and a full year for any later one, in addition to any other suspension required by law. Thirty days is too short to match the rule, and the idea of no extra suspension is exactly what the JOL law rejects. The add on does not apply when the teen already received an additional suspension for failing or refusing a breath test.
Chapter 90, Section 10 allows certain validly licensed drivers from other countries to operate validly registered vehicles in Massachusetts, but driving outside those terms is a criminal violation and a first offense carries a fine of $500. A visitor must carry the valid foreign license while driving, along with an English translation when the license lacks one. Anyone who becomes a Massachusetts resident must obtain a Massachusetts license to keep driving, and there is no grace period.
The program has three parts: 30 classroom hours, 12 hours of in car training behind the wheel, and six hours in the car observing other students drive. The 40 hour figure that people mix in here is the separate supervised practice a parent certifies, not part of the course. There is no eight hour shortcut and no classroom only version. Completing the program is one of the conditions for the Junior Operator License, along with holding the permit for six months and passing the road test.
Each learner's permit exam contains 25 multiple choice questions covering alcohol misuse, suspensions, JOL violations, rules of the road and road signs. Eighteen is the number you must get right, not the number asked, and fifty or forty questions overstate the exam. The test allows about a minute per question, for a 25 minute limit, and is offered on automated testing kiosks and online in several languages for Class D and M permits.
If your corrected vision is between 20/50 and 20/70 in the better eye, you may be eligible for a daylight only license, while 20/40 is the standard for unrestricted driving. Medical Affairs handles other vision and physical qualifications and the voluntary reporting procedure for medical conditions. Have your eyesight checked every year or two, since vision loss is gradual and easy to miss.
Vertical licenses and identification cards printed with the words Under 21 are issued to anyone who obtains or renews a license or ID while under 21, and the card remains valid to its expiration date even after the holder turns 21. A horizontal license may be obtained after the 21st birthday, while a driver who renews before turning 21 receives another vertical card. A license or ID can be renewed up to one year before its expiration date.
Massachusetts regulation 540 CMR 4.04(4) requires that parking brakes be tested by accelerating the motor to 1,200 to 1,300 RPMs with the vehicle in the lowest gear, and the examiner tests the brake before the road test. The examiner will not let the test proceed if the parking brake does not work as the law requires. The brake must also be accessible so the examiner can make an emergency stop, which is why the manual recommends a centrally located parking brake, and a vehicle registered out of state must show insurance equal to the Massachusetts minimum limits.
Massachusetts minimum limits are $25,000 per person and $50,000 per crash for bodily injury and $30,000 for property damage, and a road test vehicle registered out of state must show the examiner proof of coverage equal to those limits. A policy or a certificate that lists the coverage limits serves as that proof. If the road test vehicle is rented, the driver must also show the rental agreement and a letter from the rental company authorizing its use for the test.
The learner's permit exam fee is $30, covering application processing and the exam, and it is charged again if you fail or the permit expires. The road test fee is $35, a flat fee for any license application, and the Class D or Class M license issue or renewal fee is $50. A duplicate or amended license costs $25, and all fees are subject to change.
Out of state conversion fees are $140 for Class A, B or C and $115 for Class D or Class M only, with an additional $3 per year to add Class M motorcycle privileges to another class; converting a Class D or M permit costs $30. All fees are subject to change. A regular Class D license issue or renewal is $50.
Massachusetts requires every person in a passenger vehicle, including vans and trucks under 18,000 pounds, to wear a safety belt or ride in a child restraint. A driver not wearing a belt can be fined $25, and the driver can also be fined $25 for each passenger age 12, 13, 14 or 15 who is unbelted. In 2023 nearly 11,000 unbelted people died in U.S. crashes.
The fine for tailgating can be as high as $100, and the manual calls tailgating illegal and the main cause of rear end crashes. The reason is stopping distance: at 50 mph you travel about 55 feet while reacting, and once you hit the brakes you may go another 160 feet or more, for a total of about 215 feet on dry, level pavement. Keep at least a three second following distance, and if a tailgater is behind you, move to another lane or pull to the side of the road to let the tailgater pass.
A Low Speed Vehicle has four wheels, can only travel between 20 and 25 mph, and must have a gross weight rating lower than 3,000 pounds. Driving one requires a valid Class D license or learner's permit, and it may not be driven on a limited access or express state highway or on any road with a speed limit faster than 30 mph. Drivers around LSVs should expect them to move slowly and give them room, since they cannot keep pace with faster traffic.
Every fine for a civil motor vehicle infraction that comes from Chapter 89 or 90 of the General Laws carries an added $5 public safety surcharge. The RMV records all moving violations on your driving record, and an attested copy of that record costs $20. Criminal motor vehicle offenses such as OUI and leaving the scene are handled separately in criminal court and can bring license suspension and jail.
You must pay a fee to reinstate a suspended or revoked license. Most fees are $100, but fees for suspensions caused by serious offenses may be as high as $1,200. For license suspensions of two years or more, you must also pass a learner's permit exam and road test to reinstate. A junior operator suspended for violating the passenger or night restriction pays $100 to reinstate, while a junior operator convicted of drag racing pays $500 for a first offense and $1,000 for a later one, along with a new permit exam and a Driver Attitudinal Retraining course. All fees are subject to change.
The hand-held device penalties climb with each offense. The first is a $100 fine. The second is a $250 fine plus mandatory completion of a distracted driving educational program. The third and later offenses bring a $500 fine, an insurance surcharge and the program. So $100 is the first step and $500 with a surcharge is the third. A warning letter is not part of the schedule.
Third and later offenses bring a $500 fine plus an insurance surcharge and mandatory completion of a distracted driving program. The $250 fine belongs to the second offense, and $100 to the first. Jail and a $1,000 fine are not part of the hand-held device schedule. A crash that injures someone because of phone use can bring separate criminal charges for negligent operation.
Three surchargeable events, meaning moving violations and at-fault crashes, within a two-year period lead the RMV to order a Driver Retraining course. It must be completed within 90 days or the license is suspended until it is done. The automatic 60-day suspension is for seven events in three years. No new road test is required, and waiting for seven events ignores the earlier threshold.
Seven surchargeable events within a three-year period bring an automatic 60-day suspension. Three events within two years trigger the Driver Retraining course instead. Five is not a threshold. Twelve major or minor violations within five years is the habitual traffic offender level, a far more serious status. Surchargeable events also raise insurance premiums under the Safe Driver Insurance Plan, run by the Merit Rating Board.
A driver is treated as more than 50 percent at fault when the insurance company finds fault under one of the standards of fault and has paid more than $1000 for collision, property damage, or bodily injury. Rear-end and wrong side of the road crashes are examples of those standards. Any payment, or $100, sets the bar too low, and $5,000 sets it too high. At-fault crashes count toward suspension like violations do.
A first drag racing citation suspends a Junior Operator license for one year, and a later one brings a three year suspension. Ninety days is the first speeding penalty for a Junior Operator, and 60 days is the first passenger or night restriction penalty. Three years is the repeat drag racing term, not the first. The manual's chart of mandatory license suspensions for Junior Operators adds that every drag racing offense requires a new learner's permit exam, a Driver Attitudinal Retraining course, and a new road test, with a reinstatement fee of $500 for a first offense.
For suspensions of two years or more, the driver must pass a learner's permit exam and a road test to get the license back, and bring identification documents for those tests. Online renewal or a vision test alone is not enough, and doing nothing else is wrong. Most reinstatement fees are $100, but suspensions for serious offenses can cost as much as $1,200.
A Junior Operator applicant must hold a valid learner's permit for at least six consecutive months and keep a clean driving record for at least six consecutive months before the road test. Any suspension invalidates the permit, and the six months restart when it is lifted. Thirty days, three months and one year are not the stated periods. Driver education and 40 supervised hours are also required.
An applicant needs a valid learner's permit for six consecutive months before the road test. Any suspension invalidates the permit, and the six months start running anew once the suspension is lifted. Time held before the suspension does not carry over, so the clock does not keep counting and is not waived or shortened. The same idea applies to the six-month passenger restriction, which pauses during a suspension.
A parent or guardian must take part in two hours of instruction on the driver education curriculum, unless they did so within the past five years. Six and twelve hours are student figures, the six hours of observing other drivers and the twelve hours behind the wheel. Thirty minutes is short of the rule. The parent also certifies the 40 hours of supervised driving.
The standard requirement is at least 40 hours of supervised driving certified by a parent or guardian. The RMV will accept 30 hours if the applicant completed a driver skills development program. Twelve hours is the behind-the-wheel training in driver education, and 20 and 50 are not Massachusetts figures for this rule. The 30 classroom hours of driver education are separate.
Junior Operators may not drive from 12:30 a.m. to 5:00 a.m. without a parent or guardian. Between 12:30 and 1:00 a.m. and between 4:00 and 5:00 a.m., police enforce the rule only after lawfully stopping the driver for some other violation. Driving then is still illegal. The law names only those two windows for secondary enforcement, so the whole period is not secondary. Midnight is not part of the restriction.
Infants and children must ride in a federally approved child restraint until they are at least eight years old or at least fifty-seven inches tall. After that they must wear safety belts correctly. Age 4 and 40 pounds, age 6 and 50 inches, and age 12 are not the Massachusetts thresholds. A violation of the child restraint law can bring a $25 fine.
Chapter 90, section 11 requires drivers to keep their license and registration handy, and failing to produce either brings a $35 fine for a first offense. Five dollars is the separate public safety surcharge on civil fines. One hundred dollars is the fine for refusing to give a name and address or giving a false one, a separate offense that can also lead to arrest. Five hundred dollars is not a figure in this rule.
Massachusetts sets both a deadline and two recipients for a crash report. Any crash with $1,000 or more of property damage, or one that injures or kills someone, must be reported within five days, and the report goes to the RMV and to the local police department. You should also notify your insurance company, but telling the insurer does not replace the report. A one day deadline and a State Police only filing are not the rule, and an officer showing up at the scene does not excuse you from filing.
Leaving the scene without stopping and identifying yourself is a crime, even when only property is damaged. For a crash that damages another vehicle or other property, the maximum penalty is up to $200 or up to two years imprisonment, or both. Penalties climb when someone is hurt: up to $1,000 and two years for an injury, and up to $5,000 with up to 2 1/2 years in jail or 10 years in state prison when the crash causes a death. A conviction can also bring insurance surcharges and a license suspension.

Emergencies

Massachusetts framed its 2008 move-over law around caution and speed. When you approach a stationary emergency vehicle with its lights flashing you must proceed carefully and slow to a speed that is reasonable and safe for the conditions, moving to a farther lane when that can be done safely. Stopping in the travel lane creates a new hazard, holding the posted limit past people working on the shoulder is what the law forbids, and the horn helps no one. Slow early, give room, and watch for responders on foot.
The manual gives a specific sequence for antilock brakes that do not respond with the pedal fully pressed: downshift to a lower gear and work down to the lowest gear if necessary, then apply the parking brake gently while holding the release in case the vehicle starts to skid. It also says plainly not to pump antilock brakes; pumping is the step for vehicles without them. Turning off the ignition is not one of the steps, and steering toward oncoming traffic trades one emergency for a worse one. If you still cannot slow down, sound the horn and flash your lights to warn others.
When a car comes at you head on in your own lane, the manual's steps are to slow down, pull to the right, and sound your horn to alert the other driver. Slowing reduces how fast the gap closes and gives you more time to react, and pulling right moves you toward the edge of the road and away from the oncoming car. Flashing lights alone does not move you out of danger, steering left into the oncoming lane is not what the manual advises, and stopping in the middle of the road leaves you in the car's path. Move right first, then use the horn.
Orange is the work zone color, and the manual's point is human rather than mechanical: orange warning signs and work equipment usually mean that people are on foot nearby. The signs do not mean the road is closed to all traffic, the speed limit still applies and a speeding fine in a work area is doubled, and lane restrictions come from separate signs. The manual says to follow road work signs carefully, stay alert, look for sudden changes in road direction or condition, and be prepared to stop.
Hitting an unattended vehicle or other property does not end when you drive away. The manual requires you to try to find the owner and report the crash, and if you cannot, to notify the local police. Leaving because the damage seems small is the definition of leaving the scene, waiting a fixed time is not a substitute for reporting, and there is no dollar threshold below which the duty disappears. Even after a small crash you must stop, and leaving the scene can bring a hit and run charge.
Smoke from under the hood is treated as a fire, and the manual's sequence is to pull off the road, turn off the ignition, and move away from the vehicle, then call the fire department or emergency services. It adds that you should not try to fight the fire unless you have an extinguisher. Opening the hood, pouring water on a running engine and driving on to a service station all keep you at or in the burning vehicle instead of getting clear of it. Get everyone out and away first, and let firefighters handle the rest.
The manual's instruction is to check your mirrors and find a safe place to pull over to the right, then stop until the emergency vehicle has passed. Stopping suddenly in the travel lane is exactly what the manual warns against, speeding up keeps you in the vehicle's path, and the manual specifically says not to pull your vehicle to the left. Use your right turn signal, and never stop in the middle of an intersection. Before pulling back out, be sure another emergency vehicle is not following the first.
A stalled car in a travel lane is a serious hazard, so the manual's instruction is to move it to the breakdown lane or shoulder and as far from the travel lane as you can. The left lane is the worst place to stop, leaving it in a travel lane invites a crash, and the manual does not name the median as a place to go. Once you are off the road, the manual says to stay in your vehicle and not to stand near the travel lane or in the breakdown lane, because many people have been killed standing near or working on a vehicle.
Tailgating is illegal in Massachusetts and can cost up to $100, but the manual's real point is that following too closely is the main cause of rear end crashes. The $25 figure is the adult safety belt fine, and $500 is the fine for a third or later offense under the adult hands-free phone law, not for tailgating. There is certainly a fine. Use the three second rule so a sudden stop ahead leaves you room to react, keep more space at night and in rain, and leave at least four seconds behind a motorcycle.
When a signal is not working in Massachusetts it will usually flash either red or yellow lights, and you then follow the rules for flashing lights. Flashing red works as a stop sign and flashing yellow as a warning, so the intersection still has rules. A failed signal will not show all colors or give everyone green. If the signals are blacked out and not functioning, the manual says to be cautious and proceed as though there is a stop sign in all directions, going only when it is safe.
Traffic in both directions stops for a school bus unless a barrier physically separates the two roadways. A painted line, a turn lane or even a grass median without a barrier does not qualify, so on an ordinary two-way road you stop even when the bus faces the other way. Slowing to pass is the violation the law was written against, and children who have not started to cross yet are exactly the ones the stop protects.
The manual describes the equipment so you recognize it: yellow school buses have flashing red lights and stop signs that fold out from the driver's side. The rear bumper, roof and passenger door are not where the manual places the sign. When the lights flash and the sign is out, you must stop, whichever side of the road you are on, and remain stopped until the lights stop flashing or the stop sign folds back. Vans, station wagons and family sedans used as school pupil transport vehicles show flashing red lights with SCHOOL BUS signs on top instead.
For a flat tire, a blowout or a lost wheel, the manual's first step is to grip the steering wheel tightly and slowly remove your foot from the gas pedal. Then gently apply the brakes; if you begin to skid, turn the steering wheel in the direction of the skid and gently straighten the car, and do not use the brake until you have the vehicle under control. Braking as hard as you can, turning sharply toward the shoulder and shifting into park are not part of that sequence. Pull your car off the road as soon as it is safe.
The manual says to use emergency lights and signals when your vehicle breaks down so other drivers can see it, and that you can also use your emergency lights to warn drivers behind you about a traffic crash or hazard, giving them as much warning as possible. So when the vehicle ahead turns its flashers on, assume there is trouble ahead and be ready to slow or stop. Flashers are not a passing invitation, a left turn is shown with a turn signal, and the lights are not decorative. Increase your following distance.
Ignoring a citation does not make it go away. After 20 days without a response, Massachusetts treats the driver as responsible for the offense and adds a large late fee on top of the fine, and the responsibility goes on the driving record as if the driver had paid. The citation is never dismissed for silence, no hearing is scheduled without a request, and the fine grows rather than shrinks. Pay or request a hearing inside the 20 days.
The law does not name a number; it requires a speed that is reasonable and safe for the conditions as you approach a stationary emergency vehicle with flashing lights, which in practice means well below the posted limit near people on foot. The posted limit is the maximum for open road, not for a crash scene, going faster is the violation, and walking speed is not always required on a wide highway with an empty adjacent lane. Slow, move over if you can, and proceed with caution.
When a stalled vehicle cannot be moved off the tracks and no train is coming, the manual says to call the toll free Emergency Notification System number located in the middle of the crossbuck or on the metal box near the grade crossing. Give the railroad dispatcher the DOT grade crossing locator number that is also on the sign, say that a vehicle is on the tracks, and follow the dispatcher's instructions. Before that, listen for a train, try to restart the engine, and try to push the vehicle off the tracks in neutral. If a train is coming, get everyone out and away immediately.
After an emergency vehicle has passed, the manual says to use your left turn signal, make sure the lane is clear, and be sure there are no other emergency vehicles approaching before you merge back into traffic. Headlights and signal timing are not the issue, and the car behind you is responsible for itself. The manual also makes it illegal to follow closer than 300 feet behind an emergency vehicle responding to an alarm, so once you merge back, keep well back from the one that just passed.
For a stuck gas pedal, the manual's first step is to put the car in neutral and press the brake pedal to slow down. Then try to free the gas pedal with your foot, reapply the brakes if it does not release, keep your eyes on the road, and when safe pull to the side of the road and stop. Turning off the ignition, pulling the parking brake hard and jumping out are not part of that sequence. Neutral lets the brakes slow the car even while the engine is still racing.
It is illegal to follow closer than 300 feet behind an emergency vehicle responding to an alarm. Five hundred feet is not the Massachusetts figure. Eight hundred feet is the distance you must keep when driving by or parking near a fire, a different rule. One hundred feet is too close. After the vehicle passes, signal and check for more emergency vehicles before merging back.
Massachusetts makes it illegal to drive by or park within 800 feet of a fire. Three hundred feet is the rule for following an emergency vehicle responding to an alarm. One hundred and five hundred feet are not the fire distance. Drivers also may not run over an unprotected fire hose unless a firefighter or public safety official directs it.
When a crash causes property damage only, Massachusetts does not want wrecked cars sitting in live traffic. The Driver Removal Law requires that, if there are no injuries, the vehicles be moved out of the travel lanes to a safe location. After that you still exchange name, address, license, registration and insurance information with the other drivers. Waiting in the lane for police or an adjuster keeps everyone exposed to a second collision, and driving home is leaving the scene, which is against the law.
When a train strikes a stalled car, the wreckage is carried forward along the train's path. That is why the manual tells you to get everyone out immediately, move as far from the tracks as you can, and run at a 45 degree angle away from the tracks toward the direction the train is coming from, then call 911. Running along the tracks or in the train's direction of travel puts you in the path of debris, and going back to the car wastes the seconds you need to get clear.
Losing your headlights makes you hard to see as well as unable to see. The manual's first step is to turn on your parking lights, emergency flashers, or turn signal so other drivers can still spot you. Next, try the headlight switch a few times, and if the lights stay out, pull off the road as quickly as possible and leave your emergency flashers on. A dome light does not show other traffic where you are, high beams belong to the same headlights that just went dark, and driving on blind is dangerous.
A cloth on the antenna or door handle signals to passing drivers that the vehicle is disabled. Massachusetts says to use a white cloth, but to switch to a red cloth when it is snowing, because a white cloth disappears against falling snow and a snowy background. Orange and yellow are not the colors the manual names. Along with the cloth, raise the hood, turn on your hazard lights, and put on a safety vest before you get out.
On a road where traffic runs in both directions, a disabled car can be approached from the front as well as from behind. For a two lane road or an undivided highway, the manual places warning triangles or LED flares 10 feet behind the vehicle, 100 feet behind the vehicle, and 100 feet in front of it. On a divided highway, where traffic comes from only one direction, the two rear positions are enough. A roof or a spot 500 feet back is not part of the layout.
Water against a door makes it hard to open, and if you force it, water rushes in and the vehicle could flip over. The manual says to unfasten your safety belt and escape through a window, and to open power windows quickly before the water stops them from working. If the car sinks before you are out, climb into the rear seat where an air pocket may form, then take a deep breath and go out through a window once the vehicle settles. Staying buckled or waiting wastes the time you have.

Want the reasoning behind these rules? Study the handbook, chapter by chapter, in 21 short lessons quoted from the Massachusetts 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 Massachusetts DMV practice test, which explains the reasoning behind every answer, or see Massachusetts DMV facts and fees before test day.

Reviewed by Kevin Vu, CA DOI #4037122 · Last updated 2026-07-22

Massachusetts DMV cheat sheet