The definitions in this section apply throughout this chapter unless the context clearly requires otherwise.

(1) "Biofuel" means a liquid or gaseous fuel derived from organic matter intended for use as a transportation fuel, including, but not limited to, biodiesel, renewable diesel, ethanol, renewable natural gas, and renewable propane.

(2) "Department" means the department of commerce.

(3) "Electric vehicle" means a vehicle with motive energy supplied solely by an electric motor.

(4) "Hybrid electric vehicle" means a vehicle with motive energy supplied by both an internal combustion engine and an electric motor powered primarily by externally supplied sources of energy. Vehicles that utilize externally supplied energy for electric power take-off functionality are also considered hybrid electric vehicles.

(5) "Lifecycle cost" means the total cost of ownership over the life of an asset, including, but not limited to, purchase or lease cost, financing costs, taxes, incentives, operation, maintenance, depreciation, resale or surplus value, engine conversion, and the incremental cost of associated refueling infrastructure.

(6) "Local government" means any unit of local government including, but not limited to, counties, cities, towns, municipal corporations, quasi-municipal corporations, special purpose districts, and school districts.

(7) "Practicable" or "practicability" means the extent to which alternative fuels and vehicle technologies can be used to displace gasoline and diesel fuel in vehicles, as determined by multiple dynamic factors including cost and availability of fuels and vehicles, changes in fueling infrastructure, operations, maintenance, technical feasibility, implementation costs, and other factors.

(8) "Procure" means to purchase or lease.

(9) "Renewable diesel" means diesel fuel derived from organic matter that has been purified to meet requirements for use as a transportation fuel.

(10) "Renewable natural gas" means a methane-rich biogas derived from landfills, wastewater treatment facilities, anaerobic digesters, and other sources of organic decomposition that has been purified to meet requirements for use as a transportation fuel.

(11) "Renewable propane" means propane derived from organic matter that has been purified to meet requirements for use as a transportation fuel.

(12) "Revenue fleet" means all vehicles used to provide transportation services where a local government is directly or indirectly compensated for the services provided to passengers.

(13) "Vehicle" means a motorized vehicle, vessel or construction equipment. It does not mean an aircraft, railed vehicle, or stationary electrical generating equipment.