The requirement to quarantine after crossing the Polish border is lifted from 28 March
Pursuant to the Regulation of the Council of Ministers of 25 March 2022 on establishing specific restrictions, orders, and prohibitions in relation to the state of epidemic (Polish Journal of Laws, item 673), from 28 March 2022 onwards, all restrictions on travel to the Republic of Poland are lifted, which means there is no obligation to:
– present COVID certificates when crossing the border;
– test for SARS-CoV-2;
– undergo the so-called entry quarantine.
Check more at: https://www.gov.pl/web/coronavirus/travel