Vehicle Motorcycles: Lane Splitting (AB 51, Quirk) Current law does not change; lane splitting by a motorcyclist remains legal if done safely. This bill defines lane splitting as driving a motorcycle, which has two wheels in contact with the ground, between rows of stopped or moving vehicles in the same lane. The bill permits the CHP to develop lane splitting educational safety guidelines in consultation with other state traffic safety agencies and at least one organization focused on motorcycle safety. http://www.ksby.com/story/34144519/new-2017-law-aims-to-clarify-motorcycle-lane-splitting-rules