Regulations for Emissions from Small Equipment & Tools

• Overview
• List of related e-CFR links
• List of related regulations

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 e-CFR Links

See the Electronic Code of Federal Regulations (e-CFR) for the full text of current regulations that apply to small spark-ignition (SI) engines and equipment.

List of Related Regulations

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

• Rule summaries;
• Regulatory impact analyses;
• Comment summaries;
• Rule histories (including proposed rules); and 
• Fact sheets.*

*Note: Rule-related materials vary by rule.