1. Consolidated statement of continuing ICAO policies and practices related to environmental protection A39-1 – general provisions, noise and local air quality; A39-2 – climate change; A39-3 – global Market-based Measure (MBM) Scheme,2016
2. Annex 16 - environmental protection - volume III - aeroplane CO2 emissions,2017
3. A39-WP/55. Present and future aircraft noise and emissions trends,2016
4. Sustainable aviation fuels guide,2017
5. Annex 16 — environmental protection, volume IV — carbon offsetting and reduction scheme for international aviation (CORSIA), first ed., adopted by the Council of ICAO on 27 June 2018.