A bill for an act relating to the compatibility of passenger vehicles rented or leased by the state with biodiesel blended fuel classified as B-20 or higher, and including applicability provisions.

This bill requires the state of Iowa to only rent or lease passenger vehicles with diesel engines that manufacturers explicitly confirm can run on biodiesel fuel blended at 20% or higher (B-20). It directly affects state agencies (specifically the Department of Administrative Services) and private companies bidding on state vehicle rental contracts. The requirement applies to all new or renewed contracts issued on or after July 1, 2026, extending an existing standard currently used for state vehicle purchases.