General Achievement Test…. GAT Author sdca Date May 29, 2016 Comments: Leave a comment If you are studying a Unit 3 & 4 VCE Subject sequence (Year 12) you will sit the GAT. The GAT is held in June each year. The next GAT date is: Tuesday 7 June 2016. Click the buttons below to find out more… Find out what the GAT is all about.... Practice GAT Papers