When turning or changing lanes, drivers must:

Always signal their intentions even when there are no vehicles.
Signal only when driving at night.
Signal only when driving in traffic at night.
Signal only if there is traffic.
Explanation

Signaling while turning or changing lanes gives other drivers on the road an opportunity to react to your intended move. This makes the roads safer for all users. Signaling is not only necessary when there are other vehicles around but also when there are no other vehicles visible to the driver. It is a good habit for drivers to signal every time they change direction, including before beginning to pass another vehicle and before completing the pass.

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