The purpose of this announcement is to seek proposals to increase the efficiency of freight transport systems beyond current operations and solutions using one or more vehicles in classes 4 through 8. The objective of the project is to achieve a system-level greenhouse gas reduction of at least 75% by improving the efficiency of the vehicle(s) and the freight system while reducing total cost of operation and improving vehicle performance and reliability. Applications and/or instructions can be found with this announcement on EERE Exchange.