The *Common European Framework of Reference for Languages: Learning, Teaching, Assessment (CEFR) is a standard guide for teaching and learning languages created by the Council of Europe. It used to measure the level of comprehension and oral and written expression in a language and ensures the equivalence between different official degrees offered by universities and academies. Encourages the mobility of citizens through a linguistic portfolio that summarizes the domain of each language.
This is the table of equivalence of levels that NELC offers regarding the CEFR.
Levels and CEFR equivalence
| Level CERF C2 | C2 | Expert |
| Level CERF C1 | C1.2 | Superior |
| C1.1 | Advanced 3 | |
| Level CERF B2 | B2.2 | Advanced 2 |
| B2.1 | Advanced 1 | |
| Level CERF B1 | B1.1 | Intermediate 3 |
| B1.1 | Intermediate 2 | |
| Level CERF A2 | A2.2 | Intermediate 1 |
| A2.1 | Basic 3 | |
| Level CERF A1 | A1.2 | Basic 2 |
| A1.1 | Basic 1 |
