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Regulations for Emissions from Vehicles and Engines

Proposed Rule and Related Materials for Control of Emissions From Nonroad Large Spark-Ignition Engines and Recreational Engines (Marine and Land-Based)

In this action, EPA proposed emission standards for several groups of nonroad engines that cause or contribute to air pollution but that had yet to be regulated by EPA. These engines include large spark-ignition engines such as those used in forklifts and airport tugs; recreational vehicles using spark-ignition engines such as off-highway motorcycles, all-terrain vehicles, and snowmobiles; and recreational marine diesel engines. Nationwide, engines and vehicles in these various categories contribute to ozone, CO, and PM nonattainment.

Rule History

Related Materials

Fact Sheet

Draft Regulatory Support Document

Technical Support Document

Contractor Reports

Frequently Asked Questions

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