A4E & ERA Demand Revisions to EU Sustainable Aviation Fuel Mandates

Two of Europe's largest airline advocacy groups have formally called for a “fast-track revision” of the European Union's landmark sustainable fuel law, citing significant administrative burdens and competitive risks. In a joint paper published in March 2026, Airlines for Europe (A4E) and the European Regions Airline Association (ERA) argued that key provisions within the ReFuelEU Aviation Regulation are unworkable in their current form and require urgent changes to ensure the policy's success.

The core of the dispute centers on rules designed to accelerate the uptake of Sustainable Aviation Fuel (SAF), which currently costs approximately 3 times more than conventional jet fuel, according to the Carbon Direct Market Report 2025. The regulation mandates a minimum SAF blend of 2% in 2025, a figure set to rise steeply to 6% by 2030 and 70% by 2050. The associations support the decarbonization goals but warn that flawed implementation could undermine European carriers and hubs.

Compliance Burdens and Misalignment

Airlines are facing immediate operational challenges from two specific articles in the regulation. Article 5, an anti-tankering provision, requires airlines to uplift at least 90% of their annual fuel needs at EU airports. While designed to prevent carriers from loading cheaper, non-SAF blended fuel outside the bloc, A4E and ERA state the rule imposes an excessive administrative workload, particularly for carriers with complex multi-stop networks.

Compounding this is a critical misalignment between ReFuelEU's documentation requirements and the existing EU Emissions Trading System (ETS). Under Article 9, fuel suppliers must provide airlines with detailed SAF sustainability documentation. However, many suppliers missed the February 14, 2026 deadline, leaving airlines unable to claim crucial emissions benefits under the ETS and exposing them to compliance and audit risks. In their joint paper, the airline groups stated that "a targeted fast-track revision in 2026 could strengthen legal certainty, reduce unnecessary administrative burden, and ensure that every euro spent on SAF translates into real decarbonization."

Economic Pressures and Carbon Leakage

Beyond administrative friction, the high cost of SAF and its synthetic counterpart, eSAF (Electro-Sustainable Aviation Fuel), is a primary concern. The regulation includes a sub-mandate requiring 1.2% of aviation fuel to be eSAF by 2030, a fuel that can cost up to 10 times more than conventional kerosene. This cost differential creates a significant risk of carbon leakage, where traffic shifts to avoid the EU's higher operating costs.

A July 2025 study by Deloitte for A4E found that ReFuelEU could widen cost gaps on EU-Asia routes by up to 15% by 2030 compared to non-EU carriers operating through hubs in Istanbul and Dubai. This has prompted stark warnings from airline leaders. Air France-KLM CEO Benjamin Smith cautioned that the mandates could make certain long-haul routes "uneconomic" and projected a potential 45% reduction in the carrier's Asia network by 2030.

The regulatory framework places the heaviest burden on European airlines, fuel suppliers, and passengers. Suppliers face non-compliance penalties up to 13 times the cost of compliance, while passengers will ultimately absorb the SAF premium through higher ticket prices, particularly on long-haul flights.

Historical Context and Future Outlook

The current standoff is reminiscent of the EU's previous attempt to unilaterally regulate international aviation emissions. In 2012, the EU's plan to include all flights in its ETS was met with intense international opposition, forcing a

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