As prescribed in section 14 of this performance standard,
adequate independent back-up arrangements should be provided to ensure
safe navigation in case of ECDIS failure. Such arrangements include:
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.1 facilities enabling a safe take-over of the
ECDIS functions in order to ensure that an ECDIS failure does not
result in a critical situation;
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.2 a means to provide for safe navigation for
the remaining part of the voyage in case of ECDIS failure.