A window sticker is required to be displayed on all new cars sold in the U.S. It contains key details about the vehicle, its manufacturer, features, optional equipment, and packages. This label is typically attached to the side window or windshield, usually on the driver’s side.

The requirement comes from the Automobile Information Disclosure Act of 1958, introduced by Oklahoma senator Mike Monroney. In May 2011, the NHTSA and EPA updated the regulation, mandating that 2013 models and newer include estimates of fuel or electricity use per 100 miles. This offers insight into energy consumption for electric, plug-in hybrid, hydrogen fuel cell, flexible-fuel, and natural gas vehicles produced in the U.S.