Page ContentWhat is CORSIA?CORSIA is the first global market-based measure for any sector and represents a cooperative approach that moves away from a “patchwork” of national or regional regulatory initiatives. It offers a harmonized way to reduce emissions from international aviation, minimizing market distortion, while respecting the special circumstances and respective capabilities of ICAO Member States.CORSIA complements the other elements of the basket of measures by offsetting the amount of CO2 emissions that cannot be reduced through the use of technological improvements, operational improvements, and sustainable aviation fuels with emissions units from the carbon market.Who participates in CORSIA? (click here)Guide for CORSIA Focal Points and other stakeholders (click here) Assembly Resolution A41-22 zh ar ru es fr en Reservation to Resolution A41-22 SARPs - Annex 16 Volume IV Environmental Technical Manual - Volume IV Templates ICAO CORSIA Implementation Elements CORSIA States for Chapter 3 State Pairs ICAO CORSIA CO₂ Estimation and Reporting Tool (CERT) CORSIA Eligible Fuels CORSIA Eligible Emissions Units CORSIA Central Registry (CCR) Additional Material for CORSIA Implementation Status of CORSIA Implementation CORSIA Buddy Partnerships Examples of Good PracticeModel regulationsCO2 Aggregation Frequently Asked Questions Brochure and Leaflets Videos (Navigating CORSIA) Seminars Background Information