It is both an RCVS (Royal College of Veterinary Surgeons) and legal requirement that all UK veterinary students undertake a total of 38 weeks of Extra-mural studies (EMS). The majority of these placements will be unpaid and undertaken during holiday periods. The RCVS are currently reviewing EMS requirements.
The two phases of EMS can be split into Animal Husbandry EMS (AHEMS) and Clinical EMS (CEMS). These placements will enhance your practical and professional skills outside of the curriculum and give you opportunities to experience a range of workplaces.
There is also costs from EMS which you can learn more about below.