The U.S. Environmental Protection Agency has finalized a rule setting tough engine and fuel standards for large U.S.- flagged ships, a major milestone in the agency’s coordinated strategy to slash harmful marine diesel emissions. The regulation harmonizes with international standards and will lead to significant air quality improvements throughout the country.
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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 percent, and PM emissions by 85 percent, compared to current emissions.
The emission reductions from the strategy will yield significant health and welfare benefits that span beyond U.S. ports and along our coasts, reaching inland areas. EPA estimates that in 2030, this effort will prevent between 12,000 and 31,000 premature deaths and 1.4 million work days lost. The estimated annual health benefits in 2030 as a result of reduced air pollution are valued between $110 and $270 billion, which is up to nearly 90 times the projected cost of $3.1 billion to achieve those results.
This rule, under the Clean Air Act, complements a key piece of EPA’s strategy to designate an emissions control area (ECA) for thousands of miles of U.S. and Canadian coasts. The International Maritime Organization (IMO), a United Nations agency, is set to vote in March 2010 on the adoption of the joint U.S.-Canada ECA, which would result in stringent standards for large foreign-flagged and domestic ships operating within the designated area.
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