CORSIA | Carbon Offsetting and Reduction Scheme for International Aviation

Intertek provides accredited third-party verification services to help airlines and aircraft operators comply with the International Civil Aviation Organization’s (ICAO) Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA). As a global leader in sustainability assurance, Intertek supports the aviation industry’s transition to a low-carbon future through expert emissions verification, supply chain transparency, and risk mitigation.

What is CORSIA?

CORSIA is ICAO’s global carbon offsetting and reduction mechanism designed to cap net CO₂ emissions from international aviation at 2019 levels. The scheme requires commercial aircraft operators to monitor, report, and verify their CO₂ emissions, and to purchase eligible carbon offsets to cover emissions growth above baseline levels.

How Intertek Supports CORSIA Compliance

Intertek’s CORSIA verification services are part of a broader portfolio of sustainability solutions for the aviation industry, helping clients meet regulatory requirements while building resilient and responsible operations.

Our services include:

• Independent verification of annual CO₂ emissions
• Review of Monitoring, Reporting, and Verification (MRV) plans
• Verification of Emissions Monitoring Plans (EMP)
• Audit of Emissions Reports in line with ICAO Annex 16, Volume IV
• Gap analysis and readiness assessments for new or expanding fleets
• Strategic guidance on integrating CORSIA with carbon footprinting, SAF use, and ISCC certification

Intertek brings globally accredited verification capabilities and deep expertise in aviation, fuel traceability, and lifecycle emissions to support your CORSIA compliance. As a trusted partner for ISCC, Sustainable Aviation Fuel (SAF) verification, and Carbon-14 bio-based content testing, we offer integrated solutions that extend beyond emissions reporting. Our services form part of a broader Total Quality Assurance approach, helping aviation stakeholders align with international standards, build transparency across their value chains, and meet stakeholder expectations for environmental accountability.