The Common European Framework of Reference for Languages: Learning, Teaching, Assessment (CEFR) is in principle applicable to any language and does not therefore relate to any specific one.

Reference Level Descriptions have been drawn up for national and regional languages - for authors of textbooks, syllabus designers and language teachers.

They provide detailed descriptions of linguistic content at the different CEFR levels by identifying forms (words, grammar, etc.) at a given level:  the mastery  corresponds to the communicational, socio-linguistic, formal and other competences defined by the CEFR.

Reference Level Descriptions are produced not by the Council of Europe but by national teams using various approaches.

See the dedicated section on the CEFR website which includes the list of Reference Level Descriptions and Threshold levels