In August 2025, the updated ICAO Annex 14 Vol. 1 officially came into effect, introducing a transformative approach to obstacle management at and around aerodromes. The new concepts of  aeroplane design groups (ADG), obstacle-free surfaces (OFS) and obstacle evaluation surfaces (OES) mark a significant shift in how obstacles are both limited and assessed. These changes open up exciting opportunities, not only for aerodromes but also for urban development and renewable energy projects, while maintaining the safety and regularity of aircraft operations. Implementing these provisions may pose initial challenges, requiring thoughtful planning and coordination to ensure long-term safeguarding effectiveness.

• New ICAO Annex 14 Vol. 1 Obstacle Limitation Surfaces (OLS) has officially come into effect
• The new OLS concepts of obstacle-free surfaces (OFS) and obstacle evaluation surfaces (OES) are significant for aerodrome safeguarding
• Implementing the new requirements can represent exciting opportunities for aerodromes and other stakeholders, but may be challenging as well