Wonder if anyone else has heard that this is now apparently a new policy for the people on Z.
About a month ago, received a call from the police station to stop in to re-register.
Informed them that Z visa holders are not generally required to do that, no?
Reply on the phone was that the law had changed. Thanked the officer and let it be.
At renewal time, was informed by the Exit/Entry that the police registration form was invalid.
Had to return to police station to get a new registration. After some discussion and negotation about why it had taken so long to stop in was given a new registration, which was then accepted by Exit/Entry.