There is NO lane splitting law in Arizona. There is a lane FILTERING law.
Arizona Revised Statue 28-903 lets motorcycles travel between vehicles if:
- Is divided into at least two adjacent traffic lanes in the same direction of travel.
- Has a speed limit that does not exceed forty-five miles per hour.
- Travels at a speed that does not exceed fifteen miles per hour.
So motorcycles cannot split lanes on the highway.
