vehicle registration; fees; alternative fuel

HB 2012 amends Arizona's vehicle registration fees to adjust charges for alternative fuel vehicles. It sets fees for vehicles running *exclusively* on alternative fuel (not motor vehicle fuel) at $85 multiplied by the ratio of motor fuel tax to $0.18, and for hybrid vehicles using both at $40 multiplied by the same ratio. This directly affects owners of alternative fuel vehicles (like electric or hydrogen-powered cars) by changing their annual registration fee calculation. The bill does not alter fees for conventional gasoline/diesel vehicles (still $8 annually) or other vehicle types. It is a technical adjustment to align registration fees with fuel tax rates, not a policy change on alternative fuels.