CEFR (Common European Framework of Reference)
The CEFR (in German) provides objective criteria for describing language competencies, facilitating mutual recognition of qualifications obtained in various national and international contexts.
UNIcert® levels correspond with the CEFR as follows:
CEFR B1 - UNIcert®I
CEFR B2 - UNIcert®II
CEFR C1 - UNIcert®III
CEFR C2 - UNIcert®IV