Regulations for Emissions from Vehicles and Engines

Direct Final Rule for Control of Air Pollution From Aircraft and Aircraft Engines; Emission Standards and Test Procedures

Rule Summary

The Environmental Protection Agency (EPA) is promulgating new emission standards for oxides of nitrogen (NOx) and carbon monoxide (CO) for commercial aircraft engines. This rule will adopt the current voluntary NOx and CO emissions standards of the United Nations International Civil Aviation Organization (ICAO), bringing the United States aircraft standards into alignment with the international standards.

You will need Adobe Reader to view some of the files on this page. See EPA’s About PDF page to learn more.

Additional Resources

Fact Sheets

Regulations for Emissions from Vehicles and Engines Home