The Core Data Record (CDR) is comprised of 37 mandatory fields which must always be provided, and 180 conditional mandatory fields of which a subset will need to be provided (subject to the conditions specified).
In most cases, CDR data (where applicable) will need to be provided at a section level, e.g. premium for every section. However, in some cases, data will need to be provided at a more detailed level, e.g. shares for each insurer.
A series of fields which are included in the CDR will be derived from the information provided. There are 15 of these fields.