The WSET Level 4 Diploma Certification Course is the highest certification offered by the WSET. The Diploma is comprised of 6 Units, and it can take 2-3 years to complete the full program. The WSET Level 4 Diploma is the WSET’s flagship qualification, designed to prepare those in the trade for senior positions within the wines and spirits business. This qualification is also suitable for the dedicated wine enthusiast wishing to build on knowledge gained at Level 3 and acquire further expertise in wine tasting. The course will not only develop product knowledge to a specialist level, but will also enable students to acquire skills that will continue to be of use beyond the course. Please note, students must have passed the WSET Level 3 exam in order to register for the Diploma program. In addition, each student must take Unit # 2, Wine Production, before taking any other Unit in the WSET Level 4 Diploma Program. After completing Unit # 2, students can take the remaining units in any order they choose.