Operational Risk Approval
What is an ARC and why is it important for drone operators?
For professional drone operators (UAS operators) in the United Kingdom operating within the Specific category, an ARC is an essential part of their risk management framework. ARC stands for Approved Risk Classification and entails an official assessment where the operational risk of a drone operation is evaluated and classified. This process assists operators in conducting flights safely and in compliance with UK CAA regulations, forming a core element of the operational manual and the External Reference Plan (ERP).
What is an ARC exactly?
An ARC is a formal risk classification issued by the UK Civil Aviation Authority (CAA) based on a risk assessment for drone operations conducted within the Specific category. This classification outlines the safety level expected and specifies which mitigations are required to manage operational risks effectively.
The ARC is established following submission of a detailed safety dossier, often supported by either a Specific Operations Risk Assessment (SORA) or a Pre-Defined Risk Assessment (PDRA). It clearly states the operational limitations and safety procedures that must be followed for the approved drone operation.
- Definition of ARC (Approved Risk Classification)
- Issued by the competent national authority (UK CAA)
- Based on SORA or PDRA methodology
- Specifies operational limitations and mitigation measures
How does a drone operator apply for an ARC in the United Kingdom?
Drone operators flying under the Specific category in the UK must submit an application for an ARC to the CAA as a component of their External Reference Plan (ERP). The ERP encompasses the operational manual, risk analysis documentation, safety measures, and the Concept of Operations (ConOps).
Applicants need to provide a robust safety analysis demonstrating the risks associated with the intended operation and the measures planned to reduce those risks to an acceptable level. This can leverage recognised PDRAs for common flying scenarios or a bespoke SORA risk assessment for more complex or unique operations.
The CAA reviews the submitted dossier and may grant the ARC once all criteria are met satisfactorily. Maintaining a thorough and well-structured dossier helps to facilitate a swift evaluation process and reduces the likelihood of delays.
- Application submitted to UK CAA as part of the ERP
- Includes ConOps, operational manual, and risk assessment
- Use of recognised PDRAs or bespoke SORA to support application
- Clear dossier organisation expedites CAA evaluation
Why is an ARC important for professional UAS operators?
An ARC defines which drone operations are permitted under UK law and under what conditions, including required safety standards. Without a valid ARC, operators cannot conduct flights within the Specific category that extend beyond the allowances of the Open category.
It ensures that operational risks are properly assessed and mitigated, serving as an essential safety mechanism to prevent accidents. Additionally, the ARC provides transparency and reassurance to regulatory authorities, clients, and the public by confirming compliance with applicable safety requirements.
Moreover, the ARC is a mandatory approval under UK drone regulations for certain types of operations, making it fundamental for legally compliant and accepted drone activities in the UK.
- Legal requirement for flights beyond the Open category
- Ensures risk is managed and reduced appropriately
- Confirms adherence to UK CAA regulatory standards
- Builds confidence among regulators, customers, and the public
Common mistakes and tips when applying for an ARC
A frequent cause of delays and refusals by the UK CAA is submission of incomplete or poorly substantiated dossiers. Operators often underestimate the level of detail needed to demonstrate risk controls and mitigations convincingly.
Key recommendations include:
- Produce a complete, accurate, and clear operational manual
- Utilise UK-recognised PDRAs when applicable to streamline process
- Articulate mitigation measures specifically and realistically
- Engage with experts or consultants for complex operations
- Organise documentation effectively, using DroneManual or similar tools
ARC in the context of UK risk assessment tools
In the UK, the ARC forms part of a wider framework for assessing and managing operational risk, with SORA being an established structured methodology. SORA allows detailed identification and mitigation of risks for individual operations tailored to their unique circumstances.
PDRAs provide approved, standardised risk assessments for common operational scenarios, enabling faster and simpler ARC applications for routine flights.
Once approved, the ARC becomes a core reference within the operational manual and the ERP. These documents are critical for inspections and audits by the CAA.
- ARC applications derive from SORA and PDRA methodologies
- SORA accommodates bespoke risk assessments for unique operations
- PDRAs enable expedited ARC approvals for standardised flights
- ARC integrates fully into the operational manual and ERP
Frequently asked questions
What is the difference between an ARC and a PDRA?
A PDRA is a pre-defined risk assessment designed for standard drone operations, whereas an ARC is the UK CAA-approved classification of operational risk for your specific operation, which may be based on a PDRA or a bespoke SORA analysis.
Is an ARC mandatory for all drone operators?
No. An ARC is particularly required for operators conducting flights within the Specific category that fall outside the Open category and necessitate a risk assessment.
How long is an ARC valid?
The duration of an ARC’s validity is determined by the UK CAA based on the stability of the assessed risks and operational circumstances, and this validity period may be subject to extension or amendment.
Can I fly a drone in the UK without an ARC?
If you operate solely within the Open category and comply with its requirements, you do not need an ARC. However, for Specific category operations requiring risk analysis, holding a valid ARC is mandatory.
What is the relationship between the ARC and the operational manual?
The ARC outlines the safety measures and operational limitations that must be incorporated into and adhered to within the UAS operator's operational manual.