ReFuelEU Handbook 2026: Compliance, Enforcement, and What Operators Need to Know

ReFuelEU Aviation entered into force in 2025. 

2026 marks the first year of enforcement maturity.

Regulators now have a full reporting cycle of operational data. Templates are established. Verification expectations are clearer. Exemptions are being interpreted more consistently across Member States.

For aircraft operators, compliance has shifted from interpretation to execution.

To help business jet operators and regional airlines navigate this transition, we’ve compiled relevant information into 
ReFuelEU Handbook 2026: Compliance, Enforcement, and What Operators Need to Know

What Changes In 2026?

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1. Enforcement is Real

ReFuelEU now includes financial penalties for non compliance.

One tonne of non tankered fuel can result in fines of approximately €1 500, with some Member States imposing higher penalties

Beyond fines, operators face:

  • Reputational risk

  • Increased scrutiny in future reporting cycles

  • Commercial consequences with sustainability focused clients

Compliance is no longer theoretical.

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2. The 90 Percent Uplift Rule Is Under Scrutiny

Operators departing Union airports must uplift at least 90 percent of yearly required fuel on a yearly basis 

This rule exists to prevent:

  • Tankering practices

  • Excess aircraft weight

  • Avoidable emissions

Exemptions are allowed, but they must be clearly documented and defensible during verification.

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3. Switzerland Has Joined ReFuelEU

As of 1 January 2026, Switzerland has formally adopted ReFuelEU Aviation

This means:

  • Zurich and Geneva are subject to SAF blending requirements

  • Operators must comply with the 90 percent uplift rule at those airports

  • Oversight aligns closely with EU implementation

For operators flying in and out of Switzerland, this is a material change.

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4. Reporting and MRV Expectations Are Clearer

Operators exceeding thresholds must submit annual verified reports by 31 March using EASA approved templates 

Common compliance challenges include:

  • Manual reconciliation of post flight and planned fuel data

  • Fragmented data due to ACMI agreements

  • Density mismatches between Operations Manuals and scheduling software

  • Data gaps in flight planning

If you exceeded thresholds in 2025, your 2026 monitoring process should already be operational

How Operators Are Managing Compliance

The handbook outlines three primary models:

  1. Manual compliance

  2. Software supported compliance

  3. Managed compliance as a service

Why This Handbook Matters

ReFuelEU requirements will continue tightening toward 2030 and beyond. Operators who treat compliance as an integrated operational process, not a once a year reporting exercise, will:

  • Reduce audit risk

  • Improve internal governance

  • Protect commercial relationships

  • Stay aligned with European aviation policy

Download the ReFuelEU Handbook 2026

The full handbook includes:

  • SAF blending mandates and definitions

  • Operator obligations

  • 90 percent uplift rule details

  • MRV and reporting thresholds

  • Enforcement risk

  • Switzerland update

  • Practical steps to get started