(a) This subpart implements provisions of the Energy Conservation Reauthorization Act of 1998 (Pub. L. 105-388) that require, subject to some limitations, the allocation of credit to a fleet or covered person under Titles III and V of the Energy Policy Act of 1992 for the purchase of a qualifying volume of the biodiesel component of a fuel containing at least 20 percent biodiesel by volume.

(b) Fleets and covered persons may use these credits to meet, in part, their mandated alternative fueled vehicle acquisition requirements.