If you apply for admission to an Italian-taught Master’s degree programme and you have a non-Italian high school diploma, you must prove your knowledge of the Italian language: this is an admission requirement.
Visit the website of the International Affairs Department in order to find out about the language requirements and the language certificates recognised by the Politecnico di Torino. After admisison to your Master's degree programme, the certificate you have submitted will be recorded in your personal data, Online Services tab of your PoliTo page.
You will not have to sit any additional Italian language exam.