This is only relevant to children whose parents are designated as Personnel Category 1 or 2 which are shown on the MoD website ( MOD website), however all parents will be aware of their Personnel Category
Valid codes are 'Yes', 'No' and 'Refused' with an additional code of 'Unknown' to be held by the school to indicate no response given or other reason for no information. This field is collected in the Spring Census only, for all pupils on roll on Census day. This field has been flood filled with "No" to reduce the burden on schools so that it will only be necessary to change the entry for those Children who are from Service families.
There is also a Source of Service Child. This describes the source of the service child indicator obtained eg parents, school, pupil. It must be completed for all pupils. In order to meet data protection requirements, it is essential that information provided by parents or pupils can be distinguished from information ascribed by the school.
This field is collected in the Spring Census only, for all pupils on roll on Census day.