As a VU Amsterdam student, you often do not need prior permission from the Examination Board for university minors in order for the 30 EC of the minor to count towards the elective space of your study programme. If a certain course from the university minor is already part of your regular courses, you will not be able to (completely) follow this minor as courses cannot be counted twice. In that case, ask the Examination Board for permission to fill your elective space. A university minor can also be followed extracurricularly.
Check the entry requirements of the different minors: not all minors are open to all students.