Massachusetts Class D Learner's Permit Exam
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A white diamond is painted in a travel lane. What should you check before using that lane?
An elongated white outline diamond is painted in the left lane of an eastbound freeway. A white striped buffer separates it from the ordinary right lane, where blue A remains. Lane-designation signs are outside the view.
Correct answer: The posted restriction and whether your vehicle meets it.
Why
A white diamond indicates a special lane restriction. Read the signs for the permitted vehicle type, occupancy, times or other conditions. Do not assume every diamond has the same HOV requirement or that an empty lane is open to everyone.
Verified against Massachusetts Driver’s Manual · A diamond painted in a lane · p. 99
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