3GPP 38.300 v19.3.0 — the document's own text
16.7.2.3 Connected Mode
The source NG-RAN node is aware of the list of CAG IDs supported by the candidate target cells which are CAG cells.
At the time of handover, the source NG-RAN node determines a target cell among the candidates which is compatible with the received PNI-NPN restrictions.
At incoming handover, the target NG-RAN node receives the PNI-NPN mobility restrictions and checks that the selected target cell is compatible with the received mobility restrictions.
Mobility between PNI-NPN and PLMN cells is supported according to the mobility restrictions in the UE context.