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Nonroad Engines, Equipment, and Vehicles

Engine Categories




NOTE: You will need Adobe Acrobat Reader, available as a free download, to view some of the files on this page. See EPA's PDF page to learn more about PDF, and for a link to the free Acrobat Reader.

Nonroad engines are used in an extremely wide range of applications, each involving great differences in operating characteristics, engine technology, and market dynamics. EPA has adopted emission standards for all types of nonroad engines, equipment, and vehicles. These standards apply separately for each of the categories shown. Additional requirements apply for in-use gasoline and diesel fuel.

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