No. 3 Control and Reporting Unit (3CRU) is a Royal Australian Air Force surveillance unit. 3CRU is currently located at RAAF Base Williamtown near Newcastle, New South Wales and is primarily responsible for conducting surveillance of the air-sea gap between Australia and its northern neighbours. Operating from the Eastern Region Operations Centre, known commonly as East ROC, 3CRU is the premier ADGE unit. A detachment of 3CRU, 3CRU DET TDL, operates from the Northern Region Operations Centre (North ROC) at RAAF Base Tindal and is currently being upgraded to the AIR5333 project Vigilaire.