The IREX Course & Theory Exam is the required theory component of the Instrument Rating, Single or Multi-Engine. It is to be sat at the Aspeq exam facilities, the same as other CASA exams. It is a three and a half hour examination, a total of 40 marks with a required pass mark of 70%. This exam cannot be sat in-house.
For further information visit the IREX Instrument Rating information page on the CASA website.