In 2020, ACR was among the first crediting programs approved by the ICAO Council to supply emission reduction and removals credits to airlines for use towards their obligations under the Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA) for the 2021-2023 cycle. In 2021, we became the first crediting program approved by ICAO to supply post-2020 vintage credits in the 2021-2023 cycle. The decision was based on our program rules — which are aligned with Article 6 of the Paris Agreement — that ensure the avoidance of double counting of credits used for CORSIA with countries’ mitigation targets under the Paris Agreement.

ACR is approved for all project types, without limitations, for which the first crediting period began no earlier than January 1, 2016, for emissions reductions or removals that occur through December 31, 2023. All CORSIA-qualified credits are labelled on the ACR Registry.

In 2023, we became one of the first crediting programs to receive approval to supply credits for the 2024-2026 compliance period. Eligible credits include those issued to activities that started their first crediting period on or after January 1, 2016 and that represent emissions reductions that occurred from January 2021 through December 2026.