Night driving and high beams — Massachusetts Permit Test
Night driving and high beams on the Massachusetts permit test — 7 rules, each with the reason behind it and a question on it while it is fresh.
The rules
You must lower your high beams to low beam within 500 feet of an oncoming vehicle or within 200 feet of a vehicle ahead of you.
The two distances are different because the mirror throws the light straight back into the other driver's eyes from closer in.
You must lower your high beam headlights to low beam when you are within 500 feet of an oncoming vehicle or within 200 feet of a vehicle traveling ahead of you.
High beam headlights normally let you see about 350 feet ahead, and low beams about 100 feet.
Low beams show less road than a car needs to stop from highway speed. That is why speed has to come down at night.
High beam headlights normally let you see about 350 feet ahead.
Only use high beams in dark areas where you cannot see the road surface ahead.
On a lit road the high beams add glare and nothing else. They are for the places the low beams run out.
Only use high beams in dark areas where you cannot see the road surface ahead.
Do not look straight at oncoming headlights; look to the lower right side of your lane.
Looking at the light leaves an afterimage that blanks out the road for seconds. The lane edge on the right is something to steer by instead.
Do not look straight at headlights. Look to the lower right side of your lane.
Put your inside rearview mirror in the night position to reduce glare from headlights behind you, and keep inside lights off.
The mirror has a second setting exactly for this. An interior light turns the windshield into a mirror of the cabin.
Put your inside rearview mirror in the “night” position.
If another driver flashes headlights at you, your headlights may be off or your high beams may be on.
The flash is a message rather than an insult. Checking the switch takes a second and fixes what they are telling you about.
If another driver flashes headlights at you, your headlights may be off or your high beams may be on.
Drive more slowly at night, keeping a speed that lets you react and stop safely within the distance you can see ahead.
The rule is the same one the low-beam figure sets up: the car must be able to stop inside the lit road, not beyond it.
Keep a speed that will let you react and stop safely within the distance you can see ahead.
On the test
Within what distance of an oncoming vehicle must high beams be lowered?
500 feet. The two distances are different because the mirror throws the light straight back into the other driver's eyes from closer in. Massachusetts Driver's Manual, p.46: “You must lower your high beam headlights to low beam when you are within 500 feet of an oncoming vehicle or within 200 feet of a vehicle traveling ahead of you.”
How this works
Most practice tests hand you a bank of questions and leave the manual somewhere else. This one puts them together.
You read one law and the reason behind it, then answer a question on that law while it is still fresh. Get it right and you move on; get it wrong and you have found the gap while it is cheap to fix, not on the morning of the exam.
Learning one rule at a time, and proving it immediately, is what turns a manual you skimmed into something you actually know — and it makes studying feel like getting somewhere rather than like waiting to find out.
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Where these come from
Every rule here is checked against Massachusetts Driver's Manual, published by the Massachusetts Registry of Motor Vehicles, and against the state code itself. Last checked 2026-09-16.
- src/assets/drivers-manuals/MA.pdf (Massachusetts Driver's Manual, Revised April 2026, Massachusetts Registry of Motor Vehicles, retrieved 2026-09-14 from mass.gov)
- src/assets/drivers-manuals/MA.pages.txt (pdftotext -layout over that PDF; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/SOURCES.json (sha256, folio offset 8, folioMarker, nonLawPages, signGalleryPages and the extraction flag, each with its measured basis)