Official certificates can be obtained if you are an official student or if you take the exam as an external candidate.
For Official Students: courses in the Official Language Schools are divided into three levels (basic, intermediate and advanced). For some languages there are more levels, C1 and C2. Passing the 2nd year grants the right to obtain the Basic Level Certificate. The official registration for 3rd (3rd-B) and 5th (4th, C1 and C2 in Catalan and C1 in English, French and German) include the right to take the examination for the Certificate and, if passed, to obtain the corresponding Certificate.
External Candidates: Registration of External Candidates (only for the Intermediate Level Certificates B1 and B2) enables students to take the examinations without granting them the right to attend classes.