Annex V Requirements for the assessment of the level of performance of surveillance chains referred to in Article 7(1)

1. The assessment of the level of the ongoing performance of the systems referred to in points (b), (c) and (d) of Article 2(1) shall be performed in the volume of airspace where the corresponding provision of surveillance services utilising the systems is undertaken.

2. Air navigation service providers shall periodically check the system and its components and develop and enforce a performance validation regime. The periodicity shall be agreed with the CAA taking into account the specificities of the system and its components.

3. Before the implementation of airspace design modification the systems referred to in points (b), (c) and (d) of Article 2(1) shall be verified in order to check that they still meet the required performance in the new volume of operation.