Dim high beams within 300 feet of a car you follow
A free practice question for the California permit test, with the answer explained.
Independent practice site. We're not the DMV and aren't connected to any government agency.
Within how many feet of a car you are following must you dim your high beams?
The rule
Use low beams whenever you are 300 feet or closer behind a vehicle going your way.
Once you are 300 feet or closer behind a vehicle going your way, switch to low beams.
From the California Driver Handbook, section 5, page 11. This question is our own wording of that rule. The handbook and the DMV 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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