This is the 4th Train the Trainer workshop of 2023 and was conducted online on 9 November 2023.Aims and objectives of the session: what are EPAs, and how do they work (educationally and technically), troubleshooting, using survey results, and Calibrating. It involved our National Clinical Director, Dr Cathy Cullen, our Deputy National Clinical Director, Dr. Nazrila, Dr. Ed Mc Swineys, Fiona Mcguire, Ms. Barbara, and all Scheme Directing Teams.