The International Civil Aviation Organization (ICAO) released a draft rule in February of this year proposing a new standard for reducing GHG emissions in new and in-production commercial aircraft. In the wake of the proposed ICAO standard, which must be approved and formally adopted by the ICAO Council, the U.S. Environmental Protection Agency (EPA) has issued a finding that aircraft greenhouse gas (GHG) emissions endanger public health and welfare—a prerequisite for new U.S. regulations setting standards for GHG emissions, which will be after ICAO’s standard is finalized in March 2017.