As part of the U.S. Environmental Protection Agency's SmartWay® Transport Partnership, Mack now offers a select set of components for Pinnacle Axle Back Sleepers that are proven to reduce fuel consumption and lower emissions of greenhouse gases. Pinnacle tractors built with these components meet the EPA's environmental standards for excellence and can be designated as certified SmartWay tractors. Customers can now order the Pinnacle Axle Back with the comprehensive set of fuel saving aerodynamic enhancements and other components to meet the requirements of the U.S. EPA's SmartWay program.