Final Rule for Control of Emissions From New Marine Compression-Ignition Engines at or Above 2.5 Liters Per Cylinder

On this page:

• Rule Summary
• Rule History
• Additional Resources

Rule Summary

The Environmental Protection Agency (EPA) is adopting emission standards for new marine diesel engines that will be installed on vessels flagged or registered in the United States. The near-term, Tier 1 standards in this rule are equivalent to the internationally negotiated emission limits for oxides of nitrogen (NO_x). These standards will go into effect in 2004 and are based on readily available emission-control technology. This rule also sets Tier 1 standards for engines with per-cylinder displacement between 2.5 and 30 liters.

• Final Rule (PDF)(45 pp, 393 K, published February 28, 2003)
• Regulatory Support Document (153 pp, 648 K, EPA-420-R-03-004, January 2003)
• Summary and Analysis of Comments (PDF) (121 pp, 378 K, EPA-420-R-03-003, published January 2003)

Rule History

• Proposed Rule and Related Materials

Additional Resources

Fact Sheet

• Emission Standards Adopted for New Marine Diesel Engines (PDF)(7 pp, 427 K, EPA-420-F-03-001, January 2003)