From Thursday, April 16, everyone has to wear a mask or scarf that covers both mouth and nose. It applies to everyone in public spaces (on the street, in shops and workplaces). 

Schools, universities, kindergartens are closed at least until April 26.

International air and rail traffic is suspended until April 26. 

Until May 3 Polish borders are closed. Polish citizens, foreigners who are spouses or children of Polish citizens, persons who have the right of permanent or temporary residence in Poland or a work permit are allowed to come to Poland, but still have to quarantine after arrival.

Restrictions on organization of mass events and gatherings remain in force until further notice.

 All the other restrictions on movement remain in force until April 19. 

All rules and restrictions can be found in the “Current rules and restrictions” section (in PL):  

source in PL