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1.Only pass or change lanes when necessary.
2.Only pass or change lanes if it can be completed without speeding.
3.Keep a safe following distance; do not tailgate.
4.Check traffic ahead and behind.
5.Signal every lane change.
6.Signal your return to the right lane.
7.Return to the right lane when well ahead of the vehicle that was passed.
8.Cancel the turn signal.
Name 4 out of 8 things you should do before passing a vehicle or changing lanes.