What is an "auto emissions warranty"?

What is an "auto emissions warranty"?

James Bell (Publisher, Auto Reviewer) gives expert video advice on: Does every new car come with a warranty?; What should I look for when comparing a new car warranty? and more...

When understanding car warranties, an auto emissions warranty is required by federal law, ensuring that the vehicle will pass emissions control tests within a certain time of its ownership, no matter how the vehicle is being used or maintained by the owner. This auto emissions warranty is a requirement by the federal government so that we know that the pool of vehicles out there are not contributing to any sort of big emission problems over a certain time of usage. This is often known as an implied warranty from the manufacturer, in the case that it's not something you have to add on or make sure of the vehicles' warranty because it comes on every vehicle sold in the US.