On Aug. 16, 2016, the Environmental Protection Agency and the National Highway Traffic Safety Administration finalized new rules that will make medium- and heavy-duty vehicles cleaner and more efficient. The rule will increase the fuel efficiency and reduce tailpipe emissions of tractor-trailers, package delivery vans, transit buses, and other large trucks sold between 2021 and 2027 in an effort to decrease greenhouse gases and improve fuel economy.
For more information on fuel efficiency for medium- and heavy-duty trucks: