Alternative Fuel Use and Vehicle Acquisition Requirements
State agency fleets with more than 15 vehicles, excluding emergency and law enforcement vehicles, may not purchase or lease a motor vehicle unless the vehicle uses natural gas, propane, ethanol or fuel blends of at least 85% ethanol (E85), methanol or fuel blends of at least 85% methanol (M85), biodiesel or fuel blends of at least 20% biodiesel (B20), or electricity (including plug-in hybrid electric vehicles). Waivers may be granted for fleets if the fleet will operate primarily in areas where neither the state agency or a supplier can reasonably be expected to establish adequate fueling infrastructure for these fuels or the agency is unable to obtain equipment or fueling facilities necessary to operate alternative fuel vehicles at a cost that is no greater than the net costs of using conventional fuels.
Covered state agency fleets must consist of at least 50% of vehicles that are able to operate on alternative fuels and use these fuels at least 80% of the time the vehicles are driven. Covered state agencies may meet these requirements through the purchase of new vehicles or the conversion of existing vehicles. State agencies that purchase passenger vehicles or other ground transportation vehicles for general use must ensure that at least 25% of the vehicles purchased during any state fiscal biennium, other than exempted vehicles, meet or exceed federal Tier II, Bin 3 emissions standards.
(Reference Texas Statutes, Government Code 2158.004-2158.009)