As a degree seeking student you are enrolled in a programme for 2 years (or for some advanced Master's programmes 1 year) at the KU Leuven.
When you have fulfilled all the conditions you will receive a KU Leuven degree.
Applicants with a university degree or high school degree earned in Australia, English-speaking Canada, Ireland, New Zealand, United Kingdom or the USA are exempted from this requirement: the degree and transcripts suffice, provided they confirm that the entire study was completed in English.
TIP! It is best to set the date for your language test well ahead of your application and submit the successful result of your test together with your application!
For programmes taught in Dutch the formal requirement is a level of 5.