Consultation on the C2 Link Policy Concept for SAIL 1 to 3

Overview

The UK Civil Aviation Authority (CAA) is seeking views on a policy concept for the Command and Control (C2) Links used by Specific category Uncrewed Aircraft Systems (UAS) operating Beyond Visual Line of Sight (BVLOS) at SAIL I to III under the UK SORA process.

This consultation is part of our work under the Future Air Traffic Management and Air Navigation Services programme and supports our commitment to enabling safe and scalable BVLOS operations in the UK. The document outlines our early thinking on how existing telecoms and aviation standards could be applied to C2 links and proposes a set of measures to support compliance with Operational Safety Objectives (OSOs) within UK SORA.

Why your views matter

This is a technical and specialist consultation intended primarily for UAS operators, network providers, equipment manufacturers, and safety and risk assessment specialists.

We are seeking your views on a number of proposals, including:

• The use of existing telecoms standards and service levels to meet C2 link requirements

• Adoption of the JARUS Required C2 Link Performance (RLP) framework

• Suitability of different radio technologies for operations assessed as SAIL I, II or III

• How C2 link performance aligns with OSO6 and OSO13 requirements in UK SORA

The consultation also includes partial use cases to help illustrate how different C2 link architectures may fit a range of operational contexts.

How to Respond

Please download and read the full C2 Link Policy Concept for SAIL 1 to 3 document before responding to this consultation.

Download the draft C2 Link policy concept for SAIL 1 to 3 consultation.

The consultation includes a mixture of multiple-choice and free-text questions. You do not need to respond to every question. please feel free to focus on the areas most relevant to your expertise or interests.

The consultation will remain open until 23:59 on 22 December 2025.

If you have any questions about this consultation or would like to engage with the team directly, you can contact us at airspacemodernisationdelivery@caa.co.uk