Safety Critical: See the two below examples of how to set up viewing dates. The reason for viewing dates is to be able to view date dependant objects on the chart within the set date range you enter on the ECDIS.

You will need to set this to the entire duration (berth to berth) dates of your route BEFORE checking your route otherwise the ECDIS check may NOT include date dependent objects during the route check process.

Goto your company updated procedures for PL 4.0 to see your companies procedures on the route check you must now carry out.