The Common European Framework of Reference
The CEFR is a system which can be used to compare language levels for teaching and testing languages in Europe. It was developed by the Council of Europe in order to set a clear set of standards at different levels of language learning for European languages. We use it as the reference for our teaching of English at both a general EFL standard and at an EAP level. You can find descriptions of the different levels below.
You can compare the different grade systems below.