Dim high beams within 500 feet of oncoming traffic
A free practice question for the Massachusetts permit test, with the answer explained.
Independent practice site. We're not the RMV and aren't connected to any government agency.
When must you dim your high beams for a car coming toward you?
The rule
Switch from high beams to low beams whenever a vehicle coming toward you is within 500 feet.
Dim your high beams when an oncoming vehicle is within 500 feet. For a vehicle you are following, the distance is 200 feet.
From the Massachusetts Driver's Manual, page 46. This question is our own wording of that rule. The handbook and the RMV have the final word.
Often mixed up with
People confuse these rules with this one. Each has its own practice question.
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