The Environmental Protection Agency (EPA) proposed a rule last week that would set greenhouse gas (GHG) emission standards for some commercial aircraft. According to the agency, the rule would match international airplane carbon dioxide (CO2) standards adopted by the International Civil Aviation Organization (ICAO) in 2017. The rule (PDF) would apply to jets with maximum takeoff weights greater than 5,700 kilograms (12,566 pounds) and propeller-driven aircraft with maximum takeoff weights greater than 8,618 kilograms (18,999 pounds).
This is a companion discussion topic for the original entry at https://www.avweb.com/aviation-news/epa-proposes-emission-standards-for-aircraft