An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to www.epa.gov. This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Regulations for Emissions from Vehicles and Engines

Proposed Rule and Related Materials for Control of Emissions From New Marine Compression-Ignition Engines at or Above 2.5 Liters Per Cylinder

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.

Referenced Tier Level

  • Tier 1

Following is information for the proposed rule for Control of Emissions From New Marine Compression-Ignition Engines at or Above 2.5 Liters Per Cylinder.

Related Materials

Fact Sheets

Draft Regulatory Support Document

Regulations for Emissions from Vehicles and Engines Home