Allows the operator of a motorcycle to overtake and pass in the same lane occupied by the vehicle being overtaken and to drive between lanes of traffic or between adjacent lines or rows of vehicles, but only if on a numbered state route that is a divided highway having two or more lanes of traffic in each direction separated by a physical barrier or unpaved median and the operator is traveling at a rate of speed no more than ten miles per hour over the speed of traffic flow and not more than twenty-five miles per hour.

Prohibits an operator of a motor vehicle from intentionally impeding or attempting to prevent an operator of a motorcycle from operating the motorcycle as permitted.

Requires the department of transportation, when it has opened the use of the shoulder of a limited access facility for public transportation vehicles, to allow motorcycles to use the shoulder during the same time periods and conditions.