Introduction of Fourth Edition Standards
In June 2025, the International Civil Aviation Organization (ICAO) released the fourth edition of its CORSIA Sustainability Criteria for CORSIA Eligible Fuels, refining the regulatory framework to align with evolving climate and sustainability goals. The updated document plays a critical role in supporting Annex 16, Volume IV of ICAO’s environmental protection framework, reinforcing implementation of the Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA).
Expanded Criteria for SAF and LCAF
This update formalizes comprehensive sustainability requirements for two distinct fuel categories: Sustainable Aviation Fuels (SAF) and Lower Carbon Aviation Fuels (LCAF), applicable to batches produced from January 1, 2024, onward.
For SAF, the criteria span 14 themes, covering:
- GHG emissions: A minimum 10% net reduction against lifecycle emissions benchmarks.
- Feedstock sourcing: Restrictions on biomass from ecologically sensitive zones post-2008.
- Water, soil, and air quality: Mandatory implementation of responsible operational practices.
- Social dimensions: Respect for land and water rights, labour standards, and efforts to enhance local food security and social development in impoverished regions.
For LCAF, similar thematic coverage is maintained. However, a clear distinction is made: LCAF is not labeled as “sustainable fuel” despite meeting emissions and environmental criteria. Notably, LCAF includes additional provisions for post-closure oil and gas well emissions accountability.
Conclusion
The 2025 update reinforces ICAO’s commitment to environmental integrity, social responsibility, and scientific rigour. With robust certification schemes mandated and clarified compliance mechanisms, the new edition sets a higher bar for aviation fuels in global emissions accounting, marking a decisive move toward a cleaner aviation sector.
Download Document File Here: -CORSIA Sustainability Criteria for CORSIA Eligible Fuels (Fourth Edition) June 2025 Update