... or does it apply only to this website?
Guest Registration
As part of the local requirements, all villa and hotel guests in Indonesia need to be registered with the local authorities within 24 hours of arrival at their destination. This is a very simple procedure and involves the following:
1. The villa staff will take a photocopy of each guest's passport shortly after arrival at the villa.
2. A registration form will need to be filled out & signed by each guest
3. These papers will then be taken to the immediate village registration office
http://villa-baliana.com/terms.htm