Level 1 is for students with a basic knowledge of general English who now require an elementary course in English for specific purposes. (CEF level A1)
Level 2 is for students who have completed Level 1, or have an elementary knowledge of general English, and now require a pre-intermediate course in English for specific purposes. (CEF level A2)
Level 3 is is for intermediate students and covers CEF levels B1 to B2)
Level 4 is for Upper Intermediate students and covers CEF levels B2 to C1.