TDN 5 correspond to the C1 level. Certificate Within six weeks the candidates receive a certificate issued by the Test Centre. The certificate shows the grades of all parts of the examination and the detailed description of the reached level can be read at the back side of the certificate. If the candidate has not reached the lowest level, i.e. TDN 3, then "unter TDN 3" (lower than TDN 3) would be shown on the certificate. The certificate is valid for an unlimited period of time. University enrollment In general students must get TDN 4 in all parts of the examinations in order to be admitted into universities in Germany. But since every university in Germany has its own admissions policy, it is at the discretion of individual universities to admit applicants whose scores are below TDN 4 to their courses of study, depending on factors such as the course subject, type of degree awarded and course duration. If the candidate gets a score of TDN 5, it shows that they have a very good knowledge of German, above that required at the beginning of their studies. CERF Equivalency Empirical studies have shown that the TDN grades can be converted to the scale of the Common European Framework of Reference for Languages as follows: TDN 3 = CERF B2.1 - B2.2 TDN 4 = CERF B2.2 - C1.1 TDN 5 = CERF C1.1 - C1.2 Test centres There are approximately 450 test centres in 95 countries worldwide, offering the TestDaf exams six times a year. the officially approved test centres, which are managed by TestDaF-Institut, are usually located at German and foreign universities and other higher education institutes, DAAD editorial offices, Goethe-Institut, as well as the Adult high schools (Volkshochschule) and language schools in Germany. The test centres are responsible for: Advice and registration for the interested people, Organisational preparation and conduct of the examination, Offer of preparation course for the exam, Issue of the certificates, Advertisement of the TestDaf. Preparation for TestDaF There are many preparation courses for TestDaF in Germany as well as foreign countries. These courses are offered by official test centres as well as other language schools. Relevant information can be obtained at the official website of TestDaf. At the website of TestDaF, tips for the examination are available and sample papers can also be downloaded. Sometimes, new tests of TestDaF need to be tested, and