What is IMO performance standard requirements for BNWAS?

IMO performance standard for BNWAS are as follows:

Operational modes

The BNWAS shall incorporate the following operational modes:

  • Automatic (Automatically brought into operation whenever the ship’s heading or track control system is activated and inhibited when this system is not activated)
  • Manual ON (In operation constantly)
  • Manual OFF (Does not operate under any circumstances)
  • Operational sequence of indications and alarms
Dormant period

Once operational, the alarm system shall remain dormant for a period of between 3 and 12 min (Td). At the end of this dormant period, the alarm system shall initiate a visual indication on the bridge.


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