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Results
Successful pollution solutions involve a variety of approaches. From better engine design to better transit options, programs to reduce mobile source pollution must address not only vehicles, engines, and equipment, but also the fuels they use and the people who operate them. The road to clean air also depends on extensive collaboration between EPA; vehicle, engine, and fuel manufacturers; state and local governments; transportation planners; and individual citizens.
This integrated approach to mobile source emission control is responsible for greatly reducing mobile source air pollution during the last 30 years. Technological advances in vehicle and engine design, together with cleaner, higher-quality fuels, have reduced emissions so much that EPA expects the progress to continue, even as people drive more miles and use more power equipment every year.
Of course growth in use of vehicles, engines, and equipment works against the improvements gained by making individual vehicles or engines cleaner. If our reliance on mobile sources keeps growing without further action, overall mobile source pollution will eventually start to increase again. EPA, therefore, continues to promote even cleaner technology as well as voluntary programs to reduce vehicle, engine, and equipment activity.
Learn more about how programs focusing on vehicles, engines, and equipment; fuels; and people are reducing mobile source emissions.