Arizona - New Lane Splitting Law took effect 1/1/2011.

OFF THE WIRE
http://bikeweek.com/phoenix/bikeweek.cfm
New Lane Splitting Law took effect 1/1/2011.
Motorcycles have a great advantage over regular sized vehicles and can reduce the amount of highway traffic when practicing lane splitting, however in every state except California, lane splitting is illegal. Arizona has just introduced a new bill to allow lane splitting that will go into effect Jan. 1st, 2011.