Regulations for Emissions from Vehicles and Engines

Regulations for Emissions from Heavy Equipment

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Overview

This page provides regulations for nonroad spark-ignition (SI) engines over 19 kW (25 horsepower), including many kinds of equipment, such as forklifts, generators, and many other farm, industrial and construction applications. These engines may operate on propane, gasoline, or natural gas.

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List of Related Regulations

Below is a list of all regulations related to emissions from heavy equipment.

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Click the regulation titles for additional information, including:
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*Note: Rule-related materials vary by rule.

Regulation Title Regulation Date
(Year/Month)
Final Rule for Control of Emissions From Nonroad Large Spark-Ignition Engines, and Recreational Engines (Marine and Land-Based) 2002/11
Partial Withdrawal and Final Rule for the Nonroad Diesel Technical Amendments and Tier 3 Technical Relief Provision 2007/12
Direct Final Rule for Control of Air Pollution From New Motor Vehicles; Revisions to Motor Vehicle Diesel Fuel Sulfur Transition Provisions; and Technical Amendments to the Highway Diesel, Nonroad Diesel, and Tier 2 Gasoline Programs 2005/11
Final Rule for Test Procedures for Testing Highway and Nonroad Engines and Omnibus Technical Amendments 2005/07
Final Rule for Control of Emissions of Air Pollution From Nonroad Diesel Engines 1998/10
Final Rule for Nonroad Technical Amendments 2014/02
Direct Final Rule: Amendments to Emission Requirements Applicable to New Nonroad CI Engines at or Above 37 Kilowatts: Provisions for Replacement CI Engines and the Use of On-Highway CI Engines in Nonroad Vehicles 1996/11
Final Rule for Determination of Significance for Nonroad Sources and Emission Standards for New Nonroad Compression-Ignition Engine At or Above 37 Kilowatts 1994/06
Direct Final Rule: Nonroad Diesel Technical Amendments and Tier 3 Technical Relief Provision 2007/09

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