The Clean Cities Blog helps Clean Cities coordinators and stakeholders access information about alternative transportation topics that affect their coalitions around the United States.
This blog supports the U.S. Department of Energy's Clean Cities program.
Learn about the blog policy.
How are vehicle fuel economy ratings determined? What factors impact fuel economy?
December 1, 2012
Contacts | Web Site Policies | U.S. Department of Energy | USA.gov
v220.127.116.11 Sign in