A label that provides a Global Warming Score and Smog Score, both on a scale from 1 to 10 (10 being cleanest). The Environmental Performance Label is required on all new cars sold in California that are manufactured after January 1, 2009
California Air Resources Board ARB (California Environmental Protection Agency), glossary of air pollution terms, Sacramento, CA, USA 2013. http://www.arb.ca.gov/html/gloss.htm, (Air Pollut - Amer) {594}