Regulations for Emissions from Vehicles and Engines

Regulations for Emissions from Small Equipment & Tools

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Overview

EPA has adopted emission standards to control both exhaust and evaporative emissions from small spark-ignition engines. Phase 3 exhaust emissions standards took effect in 2011 or 2012, depending on the size of the engine. Evaporative emission standards address fuel permeation through fuel-system components in addition to fuel venting during engine operation.

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List of Related Regulations

Below is a list of all regulations related to emissions from small equipment and tools. 

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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 Hazardous Air Pollutants From Mobile Sources - 40 CFR Parts 59, 80, 85, and 86 2007/02
Final Rule for Control of Emissions of Hazardous Air Pollutants From Mobile Sources: Default Baseline Revision 2005/10
Final Rule for Control of Emissions of Hazardous Air Pollutants From Mobile Sources - 40 CFR Parts 80 and 86 2001/03
Final Rule for Control of Emissions From Nonroad Spark-Ignition Engines and Equipment 2008/10
Direct Final Rule for Amendments to the Phase 2 Requirements for Spark-Ignition Nonroad Engines at or Below 19 Kilowatts 2004/01
Final Rule for Phase 2 Emission Standards for New Nonroad Spark-Ignition Handheld Engines At or Below 19 Kilowatts and Minor Amendments to Emission Requirements Applicable to Small Spark-Ignition Engines and Marine Spark-Ignition Engines 2000/04
Final Rule for Phase 2 Emission Standards for New Nonroad Spark-Ignition Nonhandheld Engines At or Below 19 Kilowatts 1999/03
Final Rule for Revised Carbon Monoxide (CO) Standard for Class I and II Nonhandheld New Nonroad Phase 1 Small Spark-Ignition Engines 1996/11
Final Rule for Control of Air Pollution; Emission Standards for New Nonroad Spark-Ignition Engines At or Below 19 Kilowatts 1995/07
Final Rule for Control of Emissions of Air Pollution From Nonroad Diesel Engines and Fuel 2004/06

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