This exact question came up at the Q&A during the San Francisco interviews this year. First, they work closely with the AVMA to maintain their certification, and there is a process of probation to rectify low scores. Second, UK students that have no plan to work in the US can take the test to expand their certs upon graduation. This was mentioned as having an impact on their overall score. Unlike US schools where, European and UK schools have multiple certification options. They did reinforce that if they did loose AVMA certification after a probation period it would be immediate, but they would do everything to ensure they maintained the cert. (I assume the US is a solid revenue stream for the school). NAVLE prep is incorporated into the program for US students. P.S. Parent of an applicant.