The last option to make BLs as optional as possible for cyclists.
In AZ you are never required to use BL, but if a vehicle passes you closer than 3ft and injures/kills you the driver is fined $1000. However if a BL is present in this same situation and you are not in it and they pass and hit you they are not fined. So clearly this law support the concept that its OK to hit a cyclist if they are not in the BL.
Al