Washington, D.C. –(ENEWSPF)–June 19, 2015. Today the Environmental Protection Agency and the Department of Transportation proposed the second phase of efficiency and emissions standards for heavy-duty trucks. Coming on the heels of the first-ever fuel efficiency standards for heavy-duty trucks, which went into effect last year, this second phase further cuts oil use and slashes emissions while making goods cheaper to deliver. Today, tractor-trailers average roughly six miles per gallon — the same as they…






