Division Note:

The data fields must be completed with the information requested. If it is not possible for the F1CAA to include that information because it has not been provided by the organisation or the reporter, the data field may be completed with the value ‘unknown’. However, with a view to ensuring that the appropriate information is transmitted, use of that ‘unknown’ value should, to the best extent possible, be avoided, and the report should, where possible, be completed with the information later.