Silk, Robert2021-01-262021-01-262021-01-15http://hdl.handle.net/10919/102068The new aircraft emission standards finalized in December 2020 lag 10 years behind existing aircraft engine technology states a filing in January from the Sierra Club, Friends of the Earth, Earthjustice, and the Center for Biological Diversity. The groups called on the incoming Biden administration to set standards using existing aircraft engine technology.application/pdfenIn Copyright (InC)Aircraft emissionsEPA regulationsU.S. aircraft manufacturersArticlehttps://www.travelweekly.com/Travel-News/Airline-News/Environmental-groups-challenge-new-aircraft-emission-standards