The Monroney sticker or window sticker is a label required in the United States to be displayed in all new automobiles and includes the listing of certain official information about the car. The window sticker was named after Almer Stillwell "Mike" Monroney, United States Senator from Oklahoma. Monroney sponsored the Automobile Information Disclosure Act of 1958, which mandated the disclosure of equipment and pricing information on new automobiles. Since the mid-1970s the United States Environmental Protection Agency provides fuel economy metrics in the label to help consumers choose more fuel-efficient vehicles. New requirements for the Monroney label were issued for 2008 cars and light-duty trucks sold in the US. The 2007 Energy Independence and Security Act (EISA) mandated inclusion of additional information about fuel efficiency as well as ratings on each vehicle's greenhouse gas emissions and other air pollutants. A more comprehensive fuel economy and environment label was mandatory beginning in model year 2013, though some carmakers adopted it voluntarily for the model year 2012. The new window sticker includes specific 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 new label introduces the comparison of alternative fuel and advanced technology vehicles with conventional internal combustion engine vehicles using miles per gallon of gasoline equivalent (MPGe) as a metric. Other information provided for the first time includes greenhouse gas and smog emissions ratings, estimates of fuel cost over the next five years, and a QR Code that can be scanned by a smartphone to allow users access to additional online information. Label contents The Monroney sticker is required to be affixed to the side window or windshield of every new car sold in the United States and can only be removed by the consumer (Chapter 28, Sections 1231–1233, Title 15 of the United States Code). A fine of up to per vehicle for each offense is authorized if the sticker is missing, and other fees and penalties are authorized if the sticker is altered illegally (including imprisonment). The act does not apply to vehicles with a gross vehicle weight rating (GVWR) of more than . The sticker must include the following information: The manufacturer's suggested retail price (MSRP) Engine and transmission specifications Standard equipment and warranty details Optional equipment and pricing City and highway fuel economy ratings, as determined