May 26, 2010: Flanked by truck manufacturers and trucking industry executives, President Obama signed a first-of-its-kind order Friday clearing the way for medium- and heavy-duty trucks to meet more stringent fuel-economy targets.

Under the order, the Department of Transportation and Environmental Protection Agency are charged with collaborating on a rule setting limits on the fuel consumed and emissions produced by large commercial vehicles beginning with the 2014 model year.

Click here to read more at Transport Topics.