As soon as foreign nationals enter Italy, they should apply for a residence permit based on the same motivations specified on their entry Visa. A residence permit is not required for business, tourism, short visits or study, provided that the stay does not exceed 3 months. The permit application must be filed within 8 working days of your date of arrival in Italy or entrance in the Schengen area (if you stop over in another EU country). As a rule, NON-EU students will enter Italy on an Italian D type visa. EU nationals do not need a residence permit to stay in Italy.