Get answers to your technical questions about alternative fuels, advanced vehicles and fuel efficiency from the Clean Cities Technical Response Service.

Seasoned technical experts are available five days a week to help you locate up-to-date information, decipher laws and incentives, and connect you with other organizations that have successfully tackled challenges similar to yours.

The Technical Response Service is a resource provided by the U.S. Department of Energy’s Clean Cities program. Contact the service at or (800) 254-6735.