PZKO gained monopolist position, and was responsible for all activities related to the Poles, as other Polish organizations have been banned.

After the Velvet Revolution, in 1990, PZKO exonerated people discriminated after 1968, including most noted personalities: Jan Rusnok, Henryk Jasiczek, Wiesław Adam Berger, Tadeusz Siwek and Ernest Sembol.

[4] The goals of PZKO are to promote and shield various cultural and educational activities of the Polish minority.

PZKO organizes and supports many activities, including clubs (women's, senior's, youth's), lectures, concerts, excursions, dance, music and folklore groups, choirs, art groups, exhibitions, various sport and social activities etc.

[5] PZKO comprises local branches, called MKs (Miejscowe Koła) which exist in almost all municipalities in Trans-Olza.