# Appendix G- Object Types with Personal Data
Personal Contact Details are only held in these object types:
- person
- role
- organisation
- irt
Role object references can be replaced by one or more of the person objects it references.
Organisation object references are optional everywhere except in inetnum objects with a status of ALLOCATED. References to organisation objects can simply be removed from anywhere else.
Irt object references are all optional. These references can also simply be removed.
In all cases, the role, organisation and irt object can then be deleted when there are no references to it.
Person objects are discussed in detail in this procedure.