NOCR is a shortcut for --->'Notification of Country of Beacon Registration'.
The Notification of Country of Beacon Registration (NCBR) is a document that is used to provide information about the country of origin and registration of a satellite-based emergency beacon. The NCBR is used by the Cospas-Sarsat system, which is an international satellite-based search and rescue system that is used to detect and locate distress signals from emergency beacons.
The NCBR is used to help identify the country of origin and registration of an emergency beacon when a distress signal is received, which is important in order to properly coordinate a rescue response. For example, if a distress signal is received from an emergency beacon that is registered in Australia, the NCBR will indicate this and the Australian authorities will be alerted to coordinate a rescue response.