Correct answer
when driving through underpasses or sections of road affected by the tunnel sign.
When travelling through underpasses or sections covered by the tunnel sign, including by day. In sufficiently lit ones, use dipped headlights with position lights; in insufficiently lit ones, articles 100 to 102 apply, without dazzling. The duty is not limited to poor visibility. A HOV lane alone does not require this car to use dipped headlights.
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when driving in high-occupancy vehicle (HOV) lanes.
only when there are conditions that reduce visibility.
when driving through underpasses or sections of road affected by the tunnel sign.
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