ETS, ReFuelEU, CORSIA, and Non-CO2. One platform. Accurate data across your entire operation.

Commercial airlines face the highest compliance volume in aviation. CELESTE consolidates every obligation into a single platform built for the scale, route complexity, and regulatory exposure your operation actually carries.

Three frameworks. One partner, one contract.

EU ETS, UK ETS, ReFuelEU, and CORSIA do not arrive as separate, manageable problems. They compound. They share data dependencies. And the penalties for misalignment between them are material.

Commercial airlines have compliance teams. The problem is not capacity, it is consolidation, accuracy, and the confidence that every number is defensible when a verifier asks.

Azzera CELESTE is the platform your team uses to make that true. 

THE COMPLEXITY

Four overlapping frameworks, one operation

ETS (EU, UK, and FR), ReFuelEU, CORSIA, and emerging non-CO2 obligations each carry different deadlines, reporting standards, and penalty structures. Managing them through separate tools creates reconciliation risk and audit exposure.

THE SCALE PROBLEM

Major operations amplify every error

Airlines uplifting large fuel volumes at hubs like LHR, CDG, AMS, or FRA face disproportionate SAF mandate exposure under ReFuelEU. A small data error at scale becomes a large compliance liability.

THE AZZERA ANSWER

One platform, consolidated and auditable

CELESTE brings your ETS monitoring, SAF certificate management, CORSIA baseline tracking, and non-CO2 reporting into a single system. Your team works from one data set. Every figure is traceable.

Four products. One platform. Zero gaps.

Built for aviation operators, not generic ESG platforms. Azzera handles the complexity so your team doesn’t have to.

Emissions Monitoring & Reporting

Audit-ready EU ETS and CORSIA compliance, managed on your behalf. Flight-level CO₂ tracking, annual verification support, and regulator-ready reports.

SAF Management & Certificates

Hassle-free access to SAF certificates (SAFc) via Book & Claim. Meet ReFuelEU blending mandates without the logistics complexity of physical SAF procurement. 

Non-CO₂
Climate Tracking

Aviation’s full climate impact goes beyond CO₂. Track contrail formation, NOx effects, and soot, the factors that account for up to 4x additional warming impact.

Compliance Services

Get CoPilot support to handle your account. Expert guidance across every compliance obligation so you never have to figure it out alone.

Want all in one managed service?​

See how Azzera’s packages bundle ETS, SAF, and Non-CO₂ into a single annual contract. 

The obligations are increasing...

What’s live today is just the beginning. The compliance burden on commercial operators escalates steeply over the next decade and the operators who act now will pay significantly less than those who wait.

2025 — NOW

ReFuelEU 2% SAF Mandate + EU ETS Tightening

All EU-departing flights must meet 2% SAF blending. ETS free allowances reduce annually. 

If you’re not automating your SAF usage and ETS monitoring today, you’re already behind.

Azzera covers this: Emissions MRV + SAF Certificates

2027 - APPROACHING

CORSIA Mandatory Phase Begins

International routes enter mandatory CORSIA offsetting. Operators need baselines already established before this date.

Operators without CORSIA monitoring plans in place today will face retroactive compliance costs.

Azzera covers this: CORSIA Baseline + Offsetting Strategy

2030

ReFuelEU Scales to 6% SAF

SAF demand triples. EU ETS free allowances phase out. Non-CO₂ reporting anticipated mandatory.

2035

ReFuelEU 20% SAF Mandate

SAF becomes a major operational cost. Operators without long-term SAF agreements face significant exposure.

Ready to simplify your compliance?

Talk to an Azzera aviation specialist and get a clear picture of your EU ETS exposure, SAFc needs, and CORSIA readiness.

ReFuelEU 2026: What Regional Airlines Need to Know

2026 marks the first full enforcement maturity year under ReFuelEU Aviation. Commercial operators must now manage:

Our ReFuelEU Handbook 2026 outlines what has changed from 2025, where enforcement is tightening, and how commercial airlines should prepare.

Azzera ReFuelEU Aviation Handbook 2026