...car pool lane in California?
This is what I saw. Our car was in the carpool lane (diamond lane) on a California freeway. The carpool lane has a double solid yellow line between it and regular traffic. There are periodic breaks in the double yellow line where it becomes a single white dash line. The motorcycle crossed the double line right in front of us, and then crossed it again to leave the lane.
I know it is legal for a single person on a motorcycle to be in a carpool lane, but is it legal for them to cross a solid double yellow line to get in it?

