July 31, 2020

31 July 2020

EPA Issues Proposed Rule Addressing Greenhouse Gas Emissions From U.S. Aircraft

On July 22, U.S. Environmental Protection Agency (EPA or the Agency) Administrator Andrew Wheeler signed an advance notice of proposed rulemaking (ANPR) to promulgate regulations governing carbon dioxide and nitrous oxide (collectively, GHGs) emissions from American aircraft under the Agency’s Clean Air Act (CAA) section 231 authority. This is the first such rule from the Agency covering aircraft GHG emissions. The ANPR proposes GHG standards for U.S. aircraft that are consistent with those adopted by the International Civil Aviation Organization (ICAO) in 2017, which EPA and the Federal Aviation Administration helped to develop. EPA does not anticipate that the proposed standards will reduce fuel burn or GHG emissions beyond the current baseline because existing or expected aircraft fuel efficiency technologies that formed the basis of the 2017 ICAO standards already demonstrate technological feasibility.