IRELAND · STS for Drone Operations
When to Choose an STS for Drone Operations in Ireland
As a drone operator in Ireland, it's essential to understand when the use of a Standard Scenario (STS) in the Specific Category is appropriate. An STS offers a standardized approach for certain drone operations, leading to a more efficient authorization process and clearer operational guidelines.
What is a Standard Scenario (STS)?
A Standard Scenario (STS) is a predefined drone operation that complies with strict requirements and conditions as specified by EU Regulation 2019/947 and related EASA guidance. STS form part of the Specific Category framework and provide a streamlined method for UAS operators to meet operational authorization requirements by standardising the operational parameters.
The main purpose of an STS is to avoid the need for complex individual risk assessments such as the SORA, when all prescribed conditions are satisfied. This simplifies and expedites the approval process for UAS operators.
- Predefined operational procedures and safety conditions
- Simplified and faster authorization process through a standard template
- Specific technical and operational requirements for drones and operations
When is an STS Applicable?
From mid-2026, two STS are recognised for drone operations within Ireland’s Specific Category:
- **STS-01**: VLOS (Visual Line Of Sight) operations over a controlled operational area in a populated environment, requiring a drone with a C5 EU classification.
- **STS-02**: BVLOS (Beyond Visual Line Of Sight) operations with airspace observers over a controlled operational area in a sparsely populated environment, requiring a drone with a C6 classification.
If your planned drone operation matches the conditions of either STS and your equipment holds the necessary C-class label, using the appropriate STS can expedite obtaining your operational authorization via a declaration of compliance submitted to the IAA.
- Identify the correct STS for your operation (STS-01 or STS-02)
- Ensure your drone has the required C-classification (C5 or C6)
- Submit a declaration of compliance to the IAA to start your operation
Benefits of Choosing an STS
Using an STS offers several advantages compared to traditional risk assessments like SORA or PDRA:
- **Simplified authorisation process:** Following an approved STS means no need for an individual risk assessment, accelerating approval times.
- **Clear operational requirements:** Standardised parameters reduce uncertainty for operators and regulators.
- **Enhanced operational safety:** Predefined conditions help mitigate risks effectively.
- **Better regulatory transparency:** The IAA benefits from clarity on operations conforming to STS, easing communication and oversight.
- Faster and more straightforward authorization
- Consistent operational safety procedures
- Reduced administrative effort and complexity
- Improved interaction with IAA supervision
Practical Considerations for UAS Operators
Before opting for an STS, verify that your drone has been classified under the EU 'C' labelling scheme correctly. Confirm your operation meets the specified conditions, including flight area, visibility, environment type, and use of safety personnel as needed.
If your intended operation falls outside the scope of the STS, you must apply for an operational authorisation following the traditional process, which includes submitting a Concept of Operations (ConOps) and a suitable SORA or PDRA risk assessment. This process is typically more complex and time-consuming.
Operators should also be aware of any national variations or additional requirements the IAA may impose and are advised to engage the authority early if there is any uncertainty.
- Confirm correct drone C-classification (C5 or C6)
- Assess if your operation fully complies with STS parameters
- Consider the SORA/PDRA route if your operation deviates
- Plan for post-operation compliance and reporting obligations
Summary Checklist for Choosing an STS
Use this checklist to decide if an STS is suitable for your drone operation:
1. Does the operation fit within STS-01 (VLOS, populated area) or STS-02 (BVLOS, sparsely populated area)?
2. Is your drone correctly C-classified (C5 for STS-01, C6 for STS-02)?
3. Have you reviewed and can you comply with all operational conditions and limitations of the applicable STS?
4. Are you able to submit a compliant declaration to the IAA to commence operation?
- 1. Operation within STS description?
- 2. Drone with correct C-label?
- 3. Comply with operational requirements of STS?
- 4. Submit declaration to IAA
Frequently asked questions
What is the difference between STS-01 and STS-02?
STS-01 covers VLOS operations over controlled ground areas in populated environments using drones with a C5 classification. STS-02 involves BVLOS operations with airspace observers over controlled areas in sparsely populated environments, requiring drones with a C6 classification. Both standardise and simplify the authorisation process.
Can I use an STS for operations outside the defined scenarios?
No. STS only apply when the drone operation fully meets the prescribed conditions of the scenario. For other or more complex operations, a full operational authorisation with a risk assessment via SORA or PDRA is required.
Is a drone with a C-classification always mandatory for an STS?
Yes, each STS specifies the required C-classification for the drone to meet technical safety requirements, and this is mandatory to use an STS.
How do I apply for an STS declaration with the IAA?
You must submit a written declaration confirming compliance with all STS conditions to the IAA. The specific submission process is outlined on the IAA website under operational authorisation for drones.
Does DroneManual assist in preparing an STS declaration?
Yes, DroneManual provides guidance and template documents to help operators compile their operational dossier, including the STS declaration, facilitating a smoother authorisation process.