Great Dane, as a key partner of the U.S. Environmental Protection Agency's SmartWay Transport Partnership, has helped develop performance specifications for new and existing trailers that achieve greater fuel efficiency. Now, customers committed to measuring and improving the efficiency of their freight operations can adopt a range of trailer systems and components that can help to significantly lower emissions and reduce fuel consumption. Options in the EPA-Certified SmartWay Trailer Spec are available on 53-foot or longer dry freight vans.