EPA Finalizes Rules for Category 3 Marine Engines - Green Car Congress

Posted - 23 December 2009 - Green Car Congress

The US Environmental Protection Agency (EPA) has finalized its new rule for Category 3 marine engines—engines with per-cylinder displacement at or above 30 liters. (Earlier post.) The regulation harmonizes with international standards (the amendments to Annex VI to the International Convention for the Prevention of Pollution from Ships, MARPOL) and will lead to significant air quality improvements throughout the country.

Air pollution from large ships, such as oil tankers and cargo ships, is expected to grow rapidly as port traffic increases. By 2030, the domestic and international strategy is expected to reduce annual emissions of nitrogen oxides (NOx) from large marine diesel engines by about 1.2 million tons and particulate matter (PM) emissions by about 143,000 tons. When fully implemented, this coordinated effort will reduce NOx emissions from ships by 80%, and PM emissions by 85%, compared to current emissions...

http://www.greencarcongress.com/2009/12/ogv-20091223.html