Separation and Collision Avoidance for BVLOS

Verified from official sources
Appendix 4Version 1Effective -Verified 31 August 2026

In plain language

Since you cannot see the drone during BVLOS flights, you must use a technical Detect and Avoid (DAA) system, operational procedures, or both to prevent collisions with other aircraft or obstacles.

Requirement as structured

CAAS requires BVLOS operators to ensure separation and collision avoidance capabilities by implementing a Detect and Avoid (DAA) system, other mitigating procedures, or a combination of both.

Original regulatory text

With the UA operating beyond visual range, separation provision and collision avoidance functions can no longer be conducted by a UA pilot/visual observer. An alternative means of ensuring this capability will have to be addressed through either: i) Having in place a DAA system (technical means); ii) Other mitigating measures or procedures; or iii) A combination of (i) and (ii).

Applies when

operation
BVLOS