Requirement

All runways licensed for night use must have lighting which at least defines the extent of the runway. This is referred to as Edge Lighting, Threshold Lighting and Runway End Lighting. Other types of lighting may also be provided.

ICAO guidance requires that runway lighting shall not be operated if a runway is not in use for landing, take-off or taxiing purposes, unless such operation is required for runway inspection or maintenance purposes. ATC are required to use whatever means are available to them to ensure that they are aware of any lighting system unserviceability so that appropriate notification action can be taken.