In the context of the ICAO Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA), an aeroplane operator can reduce its CORSIA offsetting requirements in a given year by claiming emissions reductions from the use of CORSIA Eligible Fuels (CEF).
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Applications by SCSs will be reviewed on an ongoing basis. SCSs interested in being approved by the ICAO Council are invited to complete the following application form and send it by email to officeenv@icao.int. Additional information may be requested during the evaluation process, which takes approximately six months. Any further questions on the application process can also be sent to officeenv@icao.int. This document details the information that the SCSs should provide to ICAO on an annual basis, in line with the requirements listed in Table 1 of the ICAO document ‘CORSIA Eligibility Framework and Requirements for Sustainability Certification Schemes
Click here to download the SCS Application form (Version 2- May 2021)
The following flowcharts illustrate the relation between the various entities involved with the sustainability certification of CORSIA Eligible Fuels (click to enlarge).

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Reporting Requirements for SCS annual report to ICAO
A list of Frequently Asked Questions (FAQs) providing additional clarifications of requirements is available here.
2020 Applications
As of September 2020, ICAO received applications from two SCSs. Application details - except for the information labelled as business confidential - are provided in the links below.
CORSIA Approved SCSs
SCSs approved by the ICAO Council are included in the ICAO document "CORSIA approved Sustainability Certification Schemes", available in the CORSIA Eligible Fuels website. |  |