Information on the environmental impacts of transportation.

Climate Change: What You Can Do on the Road - The burning of fuels releases carbon dioxide (CO2) into the atmosphere and contributes to climate change, but these emissions can be reduced by improving your car’s fuel efficiency. You can steps to reduce your greenhouse gas emissions, reduce the nation's dependence on oil and save money.

Save fuel, money, and the environment by choosing SmartWay certified vehicles. Vehicles that receive the SmartWay designation are very good environmental performers relative to other vehicles; the best environmental performers receive the SmartWay Elite designation. Learn more about EPA's other SmartWay programs at epa.gov/smartway.

Consumer Information - Part of the Office of Transportation and Air Quality (formerly: Office of Mobile Sources) Web site, this section provides consumers with a variety of information for controlling air pollution from motor vehicles, farm and construction equipment, and other sources.

The Plain English Guide To The Clean Air Act: Mobile sources - The 1990 Clean Air Act takes a comprehensive approach to reducing pollution from motor vehicles. This publication explains how the Act provides for cleaning up fuels, cars, trucks, buses and other motor vehicles.

US EPA Fuel Economy Guide - This fuel economy guide lists the fuel ecomony (MPG) estimates based on results of tests by the U.S. EPA. These tests are used to certify that vehicles meet the Federal emissions and fuel economy standards.

Green Vehicle Guide - Helps consumers choose the cleanest and most efficient vehicle that meets their needs. The Guide rates cars and trucks according to their emissions and fuel economy performance and provides consumers with information on how to make environmentally-informed choices when purchasing a vehicle. Green Vehicle Guide tips to save gas and improve mileage

Drive wise to reduce air pollution - Learn how to be more environmentally friendly when you need to get somewhere.

Automobile Emissions: An Overview - Driving a private car is probably a typical citizen's most "polluting" daily activity. This publication discusses various types of automobile emissions and what is being done to control them.

Your Car and Clean Air: What YOU Can Do to Reduce Pollution - This fact sheet answers some of the most common questions about reducing emissions from private vehicles. Vehicle emissions contribute to health and environmental problems such as urban smog, air toxics, and global warming.

Reducing Waste When You Travel (PDF) (4 pp, 235K, About PDF) - This EPA publication (EPA 530-F-04-019) provides tips for reducing waste and recycling when traveling.

Tips to Save Gas and Improve Mileage (PDF) (2 pp, 20K, About PDF) - This publication answers frequently asked questions about saving gasoline, improving mileage, and what to consider when buying a car.

Automobiles and Carbon Monoxide (4 pp, 23K, About PDF) - Nationwide, two-thirds of the carbon monoxide emissions come from transportation sources, with the largest contribution coming from highway motor vehicles. This publication discusses what is being done to control carbon monoxide levels.

Automobiles and Ozone (6 pp, 63K, About PDF) - In typical urban areas, at least half of the ozone pollutants come from cars, buses, trucks, and off-highway mobile sources such as construction vehicles and boats. This publication discusses what is being done to control ozone levels.

State and Local Transportation Resources - Provides state and local air quality regulators and transportation planners with access to critical information regarding transportation programs and mobile source incentive-based programs, partnership opportunities, grant funding sources, useful contact names, and technical assistance.

Bike to Work - Bicycle riding can improve your health, save you money, and help you protect the environment. Each year Bike To Work Week is celebrated by thousands of people, and is a reminder to dust off and gear up for the riding season.

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