### Must support
The meaning of the presence or absence of the must support flag is described in [Must support](guidance.html#must-support).

### Extensions
No extensions have been introduced in this profile.

### Supported interactions
The PCA API specification does not directly support operations on this profile. A PCA Publication Approver resource cannot be created, updated or retrieved independently from the [PCA Publication Authorisation Record](StructureDefinition-pca-publication-authorisation-record.html) that it is contained within.