The Specific Operations Risk Assessment (SORA) V2.5 has been an on-going topic for discussion for the past few years. Some see this as a real game-changer, others have a more nuanced opinion on this topic. But what is this update of the Joint Authorities for Rulemaking of Unmanned Systems (JARUS) methodology going to change for the drone industry in practice ?
1. What Will the Introduction of SORA V2.5 Change?
The adoption of SORA V2.5 into the EU Reg. 2019/947 in September 2025 marks a pivotal evolution in the regulatory landscape for drone operations within the specific category. Developed by JARUS and adapted by European Aviation Safety Agency (EASA), SORA V2.5 introduces a more proportionate, harmonized, but especially a more quantitative risk framework for drone operations.
- A Simplified operational authorisation process for UAS operations up to a Specific Assurance and Intergrity Level (SAIL) II, allowing national aviation authorities (NAAs) to validate compliance matrices without requiring full documentation like operations manuals.
- Refined quantitative Ground Risk Model, the new ground risk model introduced gets rid of any ambiguity or national interpretation on what is sparsely population or populated area. It defines a quantitative Ground Risk Class based on the exact population density at risk.
- Updated terminology and structure, aligning with EU regulatory language and removing inconsistencies (e.g., replacing “Extended Visual Line of Sight” with “Beyond Visual Line of Sight with Airspace Observers”) or getting clarity on the way the different volumes are defined (e.g. introduction of the term “intrinsic Ground Risk Class footprint” to describe the Operational Volume and Ground Risk Buffer)
- New Containment Model, the containment model is much clearer and especially the criteria to trigger containment requirements are entirely clarified and quantitative. Furthermore containment requirements include now a three tiered approach (Low, Medium and High) instead of the two tiered (Basic, Enhanced) classification of the SORA V2.0.
2. Improvements for the Industry Compared to SORA V2.0
SORA V2.5 brings several industry-friendly enhancements. The administrative burden for NAAs is for instance greatly reduced by requiring less documentation for low-risk operations which therefore accelerates approval timelines. The SAIL II, Visual Line of Sight (VLOS) Operations get a significant simplification by allowing applicants to only provide the compliance matrice. The authority can fast-track those applications with no review of any conformity evidence needed.
The method has also greater clarity and consistency, ambiguities in SORA V2.0 are resolved, improving predictability for operators and authorities. This should further harmonize the practices between the different EASA member states.
The new population density thresholds and containment definitions allow more flexibility, especially for Visual Line of Sight and Beyond Visual Line of Sight (BVLOS) operations in urban and industrial areas. The new ground risk model enables BVLOS missions depending on the drone size and maximum speed and gives further flexibility by allowing applicants to make use of the JARUS Annex F trade-offs or critical area reductions.
Containment is not anymore a show-stopper. The methodology clarification on containement requirements allows to better quantify containment requirement that are now easier to understand and are applied in a more risk-proportionate manner. Finally, operators benefit from population density maps, rule navigator and automated risk calculators on the EASA Innovative Air Mobility Hub.
3. Challenges with the SORA V2.5 Implementation
While SORA V2.5 is a major step forward, some challenges remain. Operators currently preparing applications under SORA V2.0 may need to adapt quickly to the new framework. Member states may decide at their discretion whether they wish to extend existing SORA V2.0 authorisation and while some pragmatic aviation authorities may extend those approval for several years other may want to switch to the newest methodology as quickly as possible so creating pressure on existing operations. This may temporarily increase discrepancies between member states and create some complexities in the transition between the SORA V2.0 and V2.5 methods.
For many use cases, the new ground risk model may lead to a higher Ground Risk Class than so far anticipated by the SORA V2.0 so creating some burden for operators with complex missions. Operators may more often use Mitigation means to reduce the intrinsic Ground Risk Class (iGRC) than this was the case under the SORA V2.0 methodology.
Although EASA recommends vulnerability assessments for SAIL III+, the lack of mandatory cybersecurity requirements may raise concerns for high-risk operations.
4. Futur Changes and the SORA 3.0
Overall we can conclude that the update in the SORA methodology greatly clarifies the intent of the SORA methodology and allows to clear many elements which were unclear in the SORA V2.0. However the risk analysis work remains and the compliance to the applicable requirements remains a challenge not to underestimate.
Furthermore many challenges remain as for instance the integration of multiple drone operations or the quantification of the airspace risk. Those challenges will certainly be addressed in future updates of the EASA drone regulation and in the upcoming JARUS SORA V3.0.
At UASolutions, we specialise in helping drone operators and organisations across Europe navigate complex use cases and their regulations. We can offer support for flights in urban areas, to build a compliant drone program, or explore SORA and PDRA options. Contact us and we’re aim to democratise the skies together!
