to those of the entire fleet of new cars. The letter grade system was opposed by carmakers and rejected after the public consultation. In November 2010, EPA introduced MPGe as comparison metric on its new sticker for fuel economy for the Nissan Leaf and the Chevrolet Volt. 2013 fuel economy and environment label In May 2011, the National Highway Traffic Safety Administration (NHTSA) and EPA issued a joint final rule establishing new requirements for a fuel economy and environment label that will be mandatory for all new passenger cars and trucks starting with model year 2013, though carmakers can adopt it voluntarily for model year 2012. The ruling include new labels for alternative fuel and alternative propulsion vehicles available in the US market, such as plug-in hybrids, electric vehicles, flexible-fuel vehicles, hydrogen fuel cell vehicle, and natural gas vehicles. The common fuel economy metric adopted to allow the comparison of alternative fuel and advanced technology vehicles with conventional internal combustion engine vehicles is miles per gallon of gasoline equivalent (MPGe). A gallon of gasoline equivalent means the number of kilowatt-hours of electricity, cubic feet of compressed natural gas (CNG), or kilograms of hydrogen that is equal to the energy in a gallon of gasoline. The new labels include for the first time an estimate of how much fuel or electricity it takes to drive , providing U.S. consumers with fuel consumption per distance traveled, the efficiency metric commonly used in many other countries. EPA's objective is to avoid the traditional miles per gallon metric that can be potentially misleading when consumers compare fuel economy improvements and this is known as the "MPG illusion." Other information provided for the first time in the redesigned labels includes: Greenhouse gas ratings of how a model compares to all others for tailpipe emissions of carbon dioxide. A footnote like note clarifies that upstream emissions from electricity generation are not included. Smog emissions ratings based on air pollutants such as nitrogen oxide and particulates. New ways to compare energy use and cost between new-technology cars that use electricity and conventional cars that are gasoline-powered. Estimates on how much more or less consumers will save or spend on fuel over the next five years compared to the average new vehicle. Information on the driving range while running in all-electric mode and charging time for plug-in hybrids and electric cars. A QR Code that can be scanned