The EPA’s CO2 standard for aircraft is a major step forward for protecting the environment and supporting sustainable growth of commercial aviation and the United States economy. Aircraft operators need certainty that their new airplanes will be certified to the International Civil Aviation Organization CO2 requirements. The aviation industry has increased fuel efficiency by 50% since 1990, and this regulation will help ensure airplane manufacturers continue to advance technology for greater fuel efficiency. These efforts are part of the industry’s strategy to cut net global aviation emissions to half of what they were in 2005 by 2050. Aviation is one of only two industrial sectors that have global CO2 goals and standards to meet them, underscoring our steadfast commitment to our communities and planet.