Quick answer
Internationally trained podiatrists need Grade B (350) in each of the four OET sub-tests for HCPC (UK) and AHPRA (Australia) registration. The Writing sub-test tests your ability to refer diabetic foot, vascular, and biomechanical cases to a non-podiatrist addressee — usually a GP, vascular surgeon, or orthopaedic team. Most marks are lost on Genre & Style: podiatric terminology used without context.