Monroney sticker

The window sticker was named after Almer Stillwell "Mike" Monroney, a United States Senator from Oklahoma who sponsored the bill that resulted in the mandate of the label.

[1] There were also hidden fees and nonessential costs that were added by some dealers and consumers lacked price information, listing of options, and destination charges as they were shopping for new cars.

[3] Since the mid-1970s, the United States Environmental Protection Agency has provided fuel economy metrics in the label to help consumers choose more fuel-efficient vehicles.

This was included in the 2007 Energy Independence and Security Act (EISA) that mandated the inclusion of additional information about fuel efficiency as well as ratings on each vehicle's greenhouse gas emissions and other air pollutants.

[9] The proposed design and final content for two options of the new sticker label that will be introduced in 2013 model year cars and trucks were consulted for 60 days with the public in 2010, and both included miles per gallon equivalent and kW-hrs per 100 miles as the fuel economy metrics for plug-in cars, but in one option MPGe and annual electricity cost are the two most prominent metrics.

One of the design options had a letter grading system from A to D and the rating would have compared a given vehicle's fuel economy and air pollution to those of the entire fleet of new cars.

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.