Regulations for Emissions from Marine Spark-Ignition Engines

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

Overview

EPA standards for exhaust and evaporative emissions reduce the environmental impact from marine spark-ignition engines and vessels. The emission standards require manufacturers to control exhaust emissions from the engines and evaporative emissions from fuel tanks and fuel lines. This page provides general information for consumers, boaters, and other users of marine vessels that use gasoline engines (or other spark-ignition engines). There are also links to the related regulations and supporting documents.

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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 marine SI engines.

List of Related Regulations

Below is a list of all regulations related to emissions from marine vessels with spark-ignition engines. 

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

*Note: Rule-related materials vary by rule.