- Only split between the two left-most traffic lanes. This consistency of location helps car drivers in those lanes learn to expect motorcyclists.
- Only split when there is ample space between the lines of cars.
- Do not split lanes when traffic is at or near the speed limit. The goal of splitting lanes is to keep moving at a reasonable speed through slow or stopped traffic, not to pass cars that are already moving at reasonable speeds.
- Do not ride substantially faster than the adjacent lines of cars, and never exceed the speed limit. To minimize risk, the speed differential between the motorcyclist and surrounding traffic should be kept to a reasonable level.
- Use the carpool lane (if present) instead of splitting lanes, if the traffic in the carpool lane is flowing freely. The limited-access nature of carpool lanes generally makes this a safer choice for motorcyclists. It is legal throughout the U.S. for a solo motorcyclist to use carpool lanes.
- You can share the carpool lane (if present) with other vehicles, but be alert for cars crossing your path at entry and exit points.
- Avoid riding on the double yellow line and never cross the double yellow line that separates the carpool lane from regular traffic lanes.