It's law: Stay in your lane on turns, then move over | Bainbridge Island Review
Q: I was taught, and the driver’s guide says, that when you’re turning left or right, you’re supposed to “turn into the lane closest to the one you came from,” and, “once you have completed your turn, you can change to another lane if you need to.” Is that just good advice, or is it the law? In my view, it is often not followed by drivers.