On May 21, 2020, the Regulations for Crossing Poland's Borders Were Amended

Beginning May 21, 2020, the following persons are authorized to enter the territory of the Republic of Poland:

1) citizens of the Republic of Poland;

2) foreigners who are spouses or children of citizens of the Republic of Poland or remain under the constant care of citizens of the Republic of Poland;

3) foreigners holding a Pole’s Card;

4) heads of diplomatic missions and members of the mission's diplomatic and consular staff, i.e. persons holding a diplomatic rank and members of their families;

5) foreigners who have the right of permanent or temporary residence on the territory of the Republic of Poland;

6) foreigners who have the right to work on the territory of the Republic of Poland, i.e. foreigners entitled to work on the same terms as Polish citizens, holding a work permit, certificate of entry in the register on seasonal work, a statement on entrusting work to a foreigner on the territory of the Republic of Poland who:

a) perform work on the territory of the Republic of Poland or

b) present documents showing that the commencement of work will begin immediately after crossing the border;

7) foreigners who run a means of transport for the transport of persons or goods, and their transit takes place as part of their professional activities consisting in the transport of goods or the transport of persons;

8) drivers performing road transport as part of international road transport or international combined transport, traveling through the territory of the Republic of Poland by means of transport other than the vehicle used for road transport:

a) with the purpose of resting on the territory of the country of stay,

b) after resting abroad;

9) students receiving education in the Republic of Poland;

10) citizens of the Member States of the European Union, the European Economic Area (EEA) or the Swiss Confederation and their spouses and children, for the purpose of crossing the territory of the Republic of Poland, lasting no more than 12 hours from the moment of crossing the border of the Republic of Poland, to the place of residence or stay; the provision also applies to the United Kingdom of Great Britain and Northern Ireland by agreement on the withdrawal of the United Kingdom of Great Britain and Northern Ireland from the European Union and the European Atomic Energy Community.

 Beginning May 22, 2020, the following persons are exempted from quarantine after crossing the Polish border:

1. aircraft crews;

2. seafarers, fishermen and other crew members of sea and inland waterway vessels, as well as ship servicemen and inspectors of recognized organizations;

https://www.gov.pl/web/gospodarkamorska/nowe-zasady-kwarantanny-dla-czlonkow-zalog-rybakow-i-serwisantow

3. persons performing in Poland or a neighboring country work related to the preparation or implementation of investments in the scope of the terminal within the Act on investments in the field of the regasification terminal for liquefied natural gas in Świnoujście, strategic investments in the field of transmission networks within the Act on the preparation and implementation of strategic investments in transmission networks or strategic investments in the oil sector within the Act on the preparation and implementation of strategic investments in the oil sector;

4. drivers performing road transport as part of international road transport or international combined transport within the provisions of the Road Transport Act, including drivers returning from abroad or passing through the territory of the Republic of Poland in transit by means of transport other than the vehicle used for road transport:

a) with the purpose of resting on the territory of the country of stay,

b) after resting abroad,

5. train crews and other employees necessary to perform freight transport services as part of international rail transport, performing professional activities in Poland or a neighboring country, on the basis of a list enumerating the persons provided by the carrier;

6. drivers performing road transport of motor vehicles or combinations of vehicles with a maximum permissible weight not exceeding 3.5 tons in the road transport of goods and non-commercial road transport of goods;

7. drivers performing road transport with vehicles intended for the transport of more than 7 and not more than 9 persons, including the driver in commercial international road transport of persons;

8. persons crossing the border of the Republic of Poland constituting an internal border for the purpose of performing professional, business or paid activities in Poland or in a country of the European Union, the European Economic Area (EEA) or the Swiss Confederation and their spouses and children; the provision also applies to the United Kingdom of Great Britain and Northern Ireland by an agreement of the withdrawal of the United Kingdom of Great Britain and Northern Ireland from the European Union and the European Atomic Energy Community;

9. students crossing the border of the Republic of Poland constituting an internal border for the purpose of receiving education in Poland or a neighboring country and their guardians who cross the border with students in order to enable this learning;

10. children covered by pre-school education in Poland or a neighboring country and their guardians who cross the border with their children to include them in this education;

11. students receiving education in the Republic of Poland;

12. persons crossing the border for the purpose of work on a farm which is located on both sides of that border;

13. soldiers of the Armed Forces of the Republic of Poland or soldiers of allied forces, officers of the Police, Border Guard, State Fire Service and State Protection Service, performing official tasks;

14. members of diplomatic missions, consular posts and representatives of international organizations and members of their families, as well as by other persons crossing the border on the basis of a diplomatic passport.

https://www.strazgraniczna.pl/pl/aktualnosci/8448,Koronawirus-zasady-kwarantanny.html