It is required when applying for a residence permit for a long-term resident of the EU or a recognition as a Polish citizen. You meet this requirement if:
- you have a state certificate of knowledge of Polish at least at level B1; the State Commission for the Certification of Proficiency in Polish issues this certificate;
- you studied in Poland with the Polish language as a language of instruction, and you have a diploma that confirms it;
- you studied abroad with the Polish language as a language of instruction - you have a degree that proves it.