If the requirement includes the need for the vendor to provide operational maintenance such as fueling, lubrication, or other fluid changes or replenishment, the contracting officer shall include in the contract:
(1) A requirement for the use of fluids and lubricants containing the maximum available amounts of recovered materials, and alternative fuels whenever available; and
(2) A preference for retreaded tires meeting the Federal retread specifications, tires with the maximum recovered material content, or retreading services for the tires on the vehicle.
[70 FR 45, Jan. 3, 2005]