Plug-in electric vehicles (EVs) have the potential to provide wide-ranging benefits to the New England and New York region, complementing and enhancing existing state policies and programs. With the region's comparatively clean electric grid in relation to many parts of the country, electrifying transportation already produces significant climate and environmental gains. Presently, EVs in most of New England and New York achieve mile per gallon equivalencies of between 79 to 135 MPG. As Northeast states continue to reduce the carbon-intensity of electric generation in the region through programs like the Regional Greenhouse Gas Initiative (RGGI) and through increases to and extensions of renewable portfolio standards, the magnitude of these gains will only grow.