The concept of "citizens" and "former citizens" was a construct by two admin in particular, Elu and myself. At a certain point after the NPA was re-established, Elu created a "registered citizens" mask for those who have had security checks done but who were not in the RA, had been removed for the RA although they retained a nation within TNP in game, or who had a security check done for the NPA, and then left the NPA but likewise retained a nation in TNP and had had a security check performed.
Because a security check has been performed, and as long as the player retained a nation in game in TNP, that should be sufficient for the citizen mask. When a player's nation CTE without leaving TNP on game, that was where the former citizen mask was primarily used. There is a subset of former RA members who chose not to post an amended oath for the RA at one point who are also former citizens, but that is the net result to the same conclusion as to their status.)
If we really need a law to formalize this, then fine, but I don't see the need to do so. The system works as it is, as long as the idea that a player and his TNP nation that has undergone a security check should be sufficent for the citizen masking.