The Test Deutsch als Fremdsprache - TestDaF - is an international language test for all those who already have a good knowledge of the German language and would like to assess it.  

Anyone wishing to study at a German university must provide proof of sufficient language skills. This proof can be provided by the TestDaF. Generally, TestDaF level 4 is sufficient for admission.

The exam performances are evaluated by carefully trained evaluators. Exam results are assigned to one of three levels in all four parts of the exam:

TestDaF Level 3 (TDN 3)    

TestDaF-Level 4 (TDN 4)    

TestDaF-Level 5 (TDN 5)

In the Council of Europe's Common European Framework of Reference for Languages, the TestDaF levels correspond to competence levels B2 to C1.