Declares that no person shall operate a motorcycle between lanes of traffic or between adjacent lines or rows of vehicles, unless: (1) The average speed of traffic at any time is substantially slower than the posted speed limit for the roadway;

(2) There are two or more lanes of traffic for vehicles proceeding in the same direction at that time; and

(3) A reasonable and prudent operator of a motorcycle would consider it safe to operate a motorcycle no more than ten miles per hour over the average speed of traffic at that time between the lanes of traffic.

Provides that "substantially slower" means a speed that is half or less than half of the posted speed limit.

Does not apply to police officers in the performance of their official duties.