Beginner

Complete beginner, starting from zero = EU A0

Elementary, Elementary 2

Continuation of the beginner course =  EU A1

Pre-Intermediate, Pre-Intermediate 2

Continuation of the elementary course = EU A2

Intermediate, Intermediate 2

Continuation of the Pre-Intermediate course = EU B1

Upper-Intermediate, Upper-Intermediate 2

Continuation of the Intermediate course = EU B2

Advanced, Advanced 2

Continuation of the Upper-Intermediate course = EU C1, C2