Final Rule for Control of Emissions From New Marine Compression-Ignition Engines at or Above 30 Liters per Cylinder
Rule Summary
EPA is finalizing emission standards for new marine diesel engines with per-cylinder displacement at or above 30 liters (called Category 3 marine diesel engines) installed on U.S. vessels. We are also finalizing a change to our diesel fuel program that will allow for the production and sale of 1,000 parts per million (ppm) sulfur fuel for use in Category 3 marine vessels. In addition, the new fuel requirements will generally forbid the production and sale of other fuels above 1,000 ppm sulfur for use in most U.S. waters, unless alternative devices, procedures, or compliance methods are used to achieve equivalent emissions reductions.
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- Final Rule (PDF)(171 pp, 3.59 MB, published April 30, 2010)
- Regulatory Impact Analysis (PDF)(527 pp, 9.48 MB, EPA-420-R-09-019, December 2009)
- Summary and Analysis of Comments (PDF)(205 pp, 1.2 MB, EPA-420-R-09-015, December 2009)
Rule History
Additional Resources
Fact Sheet
- EPA Finalizes More Stringent Standards for Control of Emissions from New Marine Compression-Ignition Engines at or Above 30 Liters per Cylinder (PDF)(6 pp, 144 K, EPA-420-F-09-068, December 2009)
- Program Update: Designation of Emission Control Area to Reduce Emissions from Ships in the U.S. Caribbean (PDF)(5 pp, 192 K, EPA-420-F-11-024, July 2011)
Technical Support Document
- Facts & Figures: Category 3 Marine Diesel Rule (PDF)(1 p, 126 K, EPA-420-F-09-075, December 2009)