Col. William Knight, 11th Wing commander, holds a battery-charging device for a plug-in electric vehicle at Joint Base Andrews, Md. Air Force officials selected Joint Bases Andrews and McGuire-Dix-Lakehurst, N.J., and Los Angeles Air Force Base, Calif., to become the initial federal enclave to replace their entire passenger vehicle fleet with electric models. JBA’s battery-charged versions will consist of cargo/utility-type vehicles such as pickup and flatbed trucks, as well as panel vans. (U.S. Air Force photo/Master Sgt. Jeffrey Allen)