CORSIA
Corresponding Adjustments for Airline Carbon Buyers
Corresponding adjustments connect airline carbon procurement with Paris Agreement accounting and the prevention of double claiming.
CORSIA Carbon Markets
CORSIA
Host-Country Attestations: The Document Behind CORSIA Supply
For many post-2020 units, host-country authorization against double claiming is a decisive part of CORSIA eligibility.
CORSIA
Article 6 and CORSIA Meet at the Carbon Purchase Desk
Article 6 becomes commercial for airlines when authorization, transfer and national accounting determine whether a carbon unit can support the intended CORSIA use.
CORSIA
From Issuance to Cancellation: The Carbon Unit Chain of Custody
A defensible CORSIA file should show a unit's path from programme issuance through ownership transfers to final cancellation.
CORSIA Carbon Markets
Why an ICAO-Approved Carbon Program Does Not Make Every Unit CORSIA-Eligible
ICAO approves emissions-unit programmes subject to defined scopes and exclusions. The practical procurement mistake is to treat programme approval as blanket approval for every project, methodology, vintage and unit in the registry.
CORSIA Carbon Markets
Buying CORSIA Eligible Emissions Units Without Buying the Wrong Credits
CORSIA eligibility is narrower than a carbon program's brand name. An airline has to check the approved programme, compliance period, vintage, methodology or activity exclusions, host-country authorization requirements and the specific u...
CORSIA Carbon Markets
Article 6.2 for Airline Carbon Buyers
Article 6.2 of the Paris Agreement matters to airline buyers because CORSIA eligible units can require host-country authorization and corresponding adjustments. Treasury and sustainability teams therefore need to understand both the carb...
CORSIA Carbon Markets
Letters of Authorization and the CORSIA Supply Chain
Host-country Letters of Authorization have become a gating item for parts of the CORSIA market because they support the international transfer and corresponding-adjustment process. An airline buying forward credits should understand what...
CORSIA Carbon Markets
Corresponding Adjustments: The Accounting Test Behind CORSIA Credits
A corresponding adjustment is intended to prevent the same mitigation outcome from being claimed both by an airline using a credit and by the host country toward its climate accounting. For CORSIA procurement, the authorization and accou...
CORSIA Carbon Markets
Inside ICAO's Technical Advisory Body for Carbon Credits
ICAO's Technical Advisory Body assesses emissions-unit programmes against the CORSIA eligibility criteria and recommends whether they should supply units to a given compliance period. For airlines, TAB decisions are market events because...
CORSIA Carbon Markets
CORSIA Phase 1 Credits vs 2027–2029 Eligible Supply
Credit eligibility is compliance-period specific. The first phase runs through 2026, while supply for 2027–2029 is governed by the second-phase eligibility decisions, so an airline cannot assume that a credit acceptable today will remain...
CORSIA Carbon Markets
American Carbon Registry Units and CORSIA Eligibility
American Carbon Registry is approved by ICAO within specified scopes for CORSIA. Airline buyers should use the current ICAO eligibility document and ACR registry information together because methodology, vintage and authorization conditi...