We have ICAO-approved verifiers for airline reporting verifications under CORSIA as well as accredited verifiers for the Airport Carbon Accreditation program.
We have ICAO-approved verifiers for airline reporting verifications under CORSIA as well as accredited verifiers for the Airport Carbon Accreditation program.
TÜV SÜD America supports airports and airlines in effectively measuring, managing and reducing their aviation carbon footprint. We have a deep understanding of airport and airline greenhouse gas (GHG) inventories and are well-versed in the emission sources and activity data required to comply with both the Airport Carbon Accreditation (ACA Program) and the Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA).
Our experience includes the verification of major international airports and airlines, with a strong focus on LTO cycle emissions and the implementation of accurate and reliable carbon calculation methodologies.
We have delivered CORSIA verification services to airlines operating in:
Airport Carbon AccreditationThe ACA Program is the only globally recognized standard for airport carbon management and certification. It is a voluntary initiative designed to help airports reduce CO₂ emissions and implement long-term sustainability strategies.
Launched in 2009, the Airport Carbon Accreditation program has certified over 300 airports worldwide, enabling them to improve energy efficiency and stakeholder engagement through a structured approach across four certification levels:
TÜV SÜD America has conducted independent third-party verifications for several major airports at Level 4, 4+ and Level 5 of the ACA Program. We ensure your airport complies with ACA requirements, whether for a first-time accreditation, level upgrade, or biennial renewal.
Through our accredited verification services, we help demonstrate that your airport is actively managing and reducing Scope 1 and Scope 2 carbon emissions, aligned with ACA and international climate goals.
Learn more about the Airport Carbon Accreditation program
CORSIA, developed by the International Civil Aviation Organization (ICAO), is a global market-based mechanism aimed at offsetting carbon emissions from international aviation. It addresses the aviation sector’s environmental impact by promoting emissions monitoring, reporting, and offsetting.
Key CORSIA goals include:
This strategy is based on four core pillars:
As accredited verifiers, TÜV SÜD America helps airlines demonstrate compliance with CORSIA by validating CO₂ emissions data and offset activities. Our services support transparency and credibility in reporting, aligned with global best practices.
Contact us to schedule a meeting or request a verification quote Contact us
Airport Carbon Accreditation (ACA) is an ACI‑endorsed global certification that independently assesses and recognizes airports’ efforts to measure, manage and reduce CO2 emissions through a tiered accreditation pathway. Airports enroll, compile a greenhouse gas inventory, implement emissions‑management actions and submit that work for independent verification; successful airports are awarded one of the ACA levels that reflect increasing ambition from footprint measurement to net‑zero/neutrality and transformation.
To attain Level 4 or Level 4+ / Level 5 an airport must go beyond measuring and managing its own (scope 1 and 2) emissions to actively reduce absolute emissions across the airport ecosystem and engage third parties. Entities must:
Inventories typically follow scope definitions—Scope 1 (direct emissions from airport‑owned/controlled sources such as on‑site fuel combustion and airport vehicle fleet), Scope 2 (purchased electricity/heating/cooling consumed by the airport operator) and Scope 3 (indirect emissions across the value chain including third‑party ground handlers, tenant operations, airside operations not controlled by the operator, passenger/employee travel, waste, purchased goods). Airport tools and guidance (e.g., ACERT, ACRP guides) define typical source lists and calculation methods to ensure consistency.
Third‑party verification provides independent assurance that inventories, monitoring systems and reported reductions or offsets are accurate, complete and compliant with program rules. Its core roles are:
We verify forestry projects in the California compliance offset program as well as voluntary programs throughout North & South America.
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We are accredited for the new California LCFS verification program and has staff with years of biogas and biofuel experience.
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Since 2011, TÜV SÜD ensures carbon footprint transparency, offering GHG assurance, goal-setting, and verification for diverse sectors and global compliance programs.
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