Regulation Database - EPA - Aircraft

In 2015, EPA issued an Advance Notice of Proposed Rulemaking that sought input on issues related to setting an international CO2 standard for aircraft, and the potential use of section 231 of the Clean Air Act to adopt a corresponding aircraft engine standard domestically. Also in 2015, under section 231(a) of the Clean Air Act, EPA proposed findings that GHG emissions from certain classes of engines used in aircraft contribute to the air pollution that causes climate change endangering public health and welfare. In 2016, EPA finalized these findings, which triggered a requirement for EPA to promulgate standards addressing GHG emissions from engines on covered aircraft. Read more about the endangerment finding here.

In 2021 EPA promulgated a rule to regulate GHGs from aircraft.

Rule Documents