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EPA Proposes Amendments to Aircraft Engine Emission Standards

Release Date: 09/17/2003
Contact Information:

John Millett 202-564-7842 /

(09/17/03) EPA is proposing to amend the existing emission standards for oxides of nitrogen (NOx) for new commercial aircraft engines. These new standards are equivalent to the latest NOx emission standards of the United Nations International Civil Aviation Organization, and thereby would bring the United States aircraft standards into alignment with the international standards. These standards would go into effect in 2004 and would apply to new aircraft engines utilized on commercial aircraft that include small regional jets, single-aisle aircraft, twin-aisle aircraft, and 747s and larger aircraft. General aviation and military aircraft using commercial aircraft engines subject to this proposal will also contribute to NOx emission reductions. The proposal and related documents are available at: . Comments can be submitted by sending an email to: A public hearing will be held at the Environmental Protection Agency, EPA East, 1201 Constitution Ave., N.W., Room Number 1153, Washington, D.C. 20004. Detailed information about the date and time of the hearings will be published in the Federal Register and at: .