EU Eyes Rules Excluding Existing Corsia Phase 1 Supply

Why It Matters

The move could sharply curtail the supply of aviation offsets, driving up compliance costs for airlines and reshaping the global carbon‑credit market. It signals the EU’s push for higher environmental integrity in line with the Paris Agreement.

Key Takeaways

• EU draft may disqualify all existing CORSIA Phase 1 credits
• High forest, low deforestation credits and high fNRB projects excluded
• Only ~10% of current credits could remain eligible under new rules
• EU will update eligible country list annually from 2027 onward
• Stricter Phase 2 criteria could further limit international aviation offsets

Pulse Analysis

The European Commission’s latest draft targets a core weakness in the CORSIA Phase 1 credit pool: projects that merely certify existing carbon stocks without delivering additional removals. By excluding high‑forest, low‑deforestation (HFLD) credits and those with a non‑renewable biomass fraction (fNRB) exceeding host‑country limits, the EU aims to align aviation offsets with the integrity standards of Article 6.4 of the Paris Agreement. This shift reflects growing skepticism that crediting static forest carbon does not meaningfully mitigate climate change, prompting regulators to demand demonstrable, anthropogenic emission reductions.

Airlines operating in the EU are already feeling the pressure. Anticipating tighter rules, many have delayed purchasing CORSIA‑eligible credits, creating a liquidity shortfall that could push offset prices higher. The draft indicates that roughly 90% of the 33 million Phase 1 credits—most of which stem from a large J‑REDD+ project in Guyana—may be barred, leaving only about 3 million viable units. This supply squeeze is likely to ripple through the broader market, affecting Asian carriers that source credits from Europe and prompting a reassessment of budgeting for climate compliance amid geopolitical uncertainties.

Looking ahead, the Commission hints at even more rigorous criteria for Phase 2 (2027‑2035), potentially limiting eligibility to credits generated under the Paris Agreement’s Crediting Mechanism (PACM) or equivalent standards. Such measures would require host countries to account for carbon at the point of issuance rather than at use or cancellation, tightening reporting and verification. For investors and offset developers, the evolving EU stance underscores the necessity of aligning projects with robust, additionality‑focused methodologies to secure long‑term market access and avoid stranded assets.