Before changing lanes to pass another vehicle in Oklahoma, how long must you signal?
Correct answer: D. – For at least the last 100 feet before the lane change
Before moving from a marked lane, the driver must first determine that the movement can be made safely and signal for at least the last 100 feet traveled. Check mirrors, blind spots, and traffic before entering the passing lane. Signal again and verify that it is safe before returning to the original lane.
Source: 47 O.S. § 11-309(2) – Driving on roadways laned for traffic, Oklahoma Driver Manual — Ch. 6, “Passing”



