Fuel Economy | US EPA Skip to main content An official website of the United States government Here’s how you know Here’s how you know Official websites use .gov A .gov website belongs to an official government organization in the United States. Secure .gov websites use HTTPS A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites. Menu Search Search Environmental Topics Environmental Topics Air Bed Bugs Chemicals, Toxics, and Pesticide Emergency Response Environmental Information by Location Health Land, Waste, and Cleanup Lead Mold Radon Research Science Topics Water Topics A-Z Topic Index Laws & Regulations Laws & Regulations By Business Sector By Topic Compliance Enforcement Guidance Laws and Executive Orders Regulations Report a Violation Report a Violation Environmental Violations Fraud, Waste or Abuse About EPA About EPA Our Mission and What We Do Headquarters Offices Regional Offices Labs and Research Centers Planning, Budget, and Results Organization Chart EPA History Fuel Economy Fuel Economy Explore the details of vehicle fuel economy, from current emissions regulations and automotive trends to the information on your new car’s window sticker. 1 The Label Basic information Label History Label examples Label updates Gas guzzler tax The Trends Report Explore the Trends Download the Report Testing and Data National Vehicle and Fuel Emissions Laboratory Test data Regulations Revisions to motor vehicle fuel economy label Greenhouse gas emissions from passenger cars and trucks Revisions to calculation of fuel economy estimates Related Topics Green Vehicle Guide Federal Trade Commission Corporate Average Fuel Economy Standards fueleconomy.gov Find and compare cars How vehicles are tested Gas mileage tips Best and worst fuel economy vehicles of the year What are you looking for? If you are looking to find and compare cars, go to fueleconomy.gov. To find the cleanest, most fuel-efficient vehicle, go to search for SmartWay Vehicles. Contact Us About Fuel Economy to ask a question, provide feedback, or report a problem. Last updated on June 8, 2026 Assistance Spanish Arabic Chinese (simplified) Chinese (traditional) French Haitian Creole Korean Portuguese Russian Tagalog Vietnamese Discover. Accessibility Statement Budget & Performance Contracting EPA www Web Snapshot Grants No FEAR Act Data Plain Writing Privacy and Security Notice Connect. Data Inspector General Jobs Newsroom Regulations.gov Subscribe USA.gov White House Ask. Contact EPA EPA Disclaimers Hotlines FOIA Requests Frequent Questions Site Feedback Follow.