Clean Cities Now, Vol. 18, No. 2, Winter 2014/2015: Past, Present, Future: Propane Proves Dependable Over the Long Term (Newsletter)

This is version 18.2 of Clean Cities Now, the official biannual newsletter of the Clean Cities program. Clean Cities is an initiative designed to reduce petroleum consumption in the transportation sector by advancing the use of alternative and renewable fuels, fuel economy improvements, idle-reduction measures, and new technologies, as they emerge.