The Austrian university system had been open to any student who passed the Matura examination until recently. A 2006 bill allowed the introduction of entrance exams for studies such as Medicine. In 2001, an obligatory tuition fee ("''Studienbeitrag''") of €363.36 per term was introduced for all public universities. Since 2008, for all EU students the studies have been free of charge, as long as a certain time-limit is not exceeded (the expected duration of the study plus usually two terms tolerance). When the time-limit is exceeded, the fee of around €363.36 per term is charged. Some further exceptions to the fee apply, e.g. for students with a year's salary of more than about €5000. In all cases, an obligatory fee of €20.20 is charged for the student union and insurance.