Compliance · International Aviation

CORSIA compliance & carbon offsetting for airlines

Progressive airlines manage their carbon and use high-quality carbon offsetting as a central part of their strategy — some going beyond compliance to make their operations carbon neutral. We help you measure, report and offset under CORSIA.

Commercial aircraft in flight
Carbon neutral growth

Carbon Offsetting Scheme for International Aviation

CORSIA is the first global scheme covering an entire industrial sector, reflecting the spirit of the Paris Agreement — equity and common but differentiated responsibilities and respective capabilities, in light of different national circumstances.

  • Emission units — operators purchase offsets or emission units for the CO2 growth the scheme covers.
  • Scope — addresses annual increases in international civil aviation CO2 above 2020 levels.
  • Baseline — 2019–2020 average emissions set the baseline for carbon neutral growth.
CORSIA carbon management for aviation
First global sector scheme

The CORSIA phases

CORSIA rolls out in defined stages, moving from voluntary participation toward mandatory obligations for most developed countries.

PHASE 01

Pilot phase · 2021–2023

A voluntary 'pilot phase' allowing participating states and operators to begin offsetting against the agreed baseline.

PHASE 02

Full voluntary · 2024–2026

The scheme broadens as more states and aircraft operators join on a voluntary basis ahead of mandatory obligations.

PHASE 03

Mandatory · 2027–2035

Participation becomes mandatory for most developed countries, with obligations to offset covered emissions growth.

AT A GLANCE

66 states · ~86.5%

66 states volunteered to implement the scheme from its outset — covering approximately 86.5% of CO2 growth across 2021–2035.

Aviation carbon expertise, end to end

Carbon Footprint Ltd has particular specialism in the airport, airline and aerospace industry, providing a full range of carbon measurement and reporting services.

Measurement & Software

Robust carbon measurement and reporting, supported by our Sustrax carbon management software.

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Validation

Independent validation of your emissions data to support credible, defensible CORSIA reporting.

Verification & Assurance

High-Quality Offsetting

A global portfolio of high-quality, internationally certified carbon offsetting projects.

Buy Carbon Credits

High-integrity ways to offset

Source emission units and offsets from internationally certified projects across our global portfolio.

High Integrity Carbon Credits

Internationally certified credits to address the CO2 growth covered by the scheme.

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International Tree Planting

Reforestation and tree-planting projects spanning our global portfolio.

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Carbon Removal Projects

Durable removal projects that complement avoidance and reduction credits.

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Discuss carbon offsetting for your airline

Talk to our aviation team about CORSIA measurement, reporting and high-quality offsetting solutions tailored to your operation.

Book a Consultation → ACA for Airports