Does a PCBU need to re-notify its workers to the Register if their site location changes or they work across multiple sites?
No. PCBUs only notify each relevant worker once to the Register and provide the location at the time of notification. PCBUs do not need to re-notify workers to the Register if the site location where the worker is undertaking high risk processing changes. If the worker is working across multiple sites, the PCBU should select one site as the location address when making the notification.