As per the ICANN requirements, an update on the Proof Of Use documentation is required once every five years. After 5 years, when the Proof Of Use expiry date is reached, the SMD file can no longer be used for the Sunrise service.
If no action is taken 60 days after the Proof Of Use expiry date, the POU status will automatically change to "expired" and the associated SMD file will be revoked.