A Type D Italy Visa is a long-stay national visa. It is issued to people who plan to stay in Italy for more than 90 days. This visa is mainly for work, study, family reunification, or long-term residence. After arriving in Italy with a Type D visa, you may need to apply for a residence permit. The validity and requirements depend on the purpose of your stay. Unlike a tourist visa, this visa allows you to stay for a longer period legally.