Monroney sticker also referred to as a "Window sticker." A sticker, required by law for all new vehicles sold in the United States, that is affixed to the side window or windshield and that must include the following information: MSRP, engine and transmission specs, standard equipment and warranty details, optional equipment and pricing, city and highway mileage ratings as determined by the Environment Protection Agency, and crash test ratings from the National Highway Traffic Safety Administration.