A passenger travelling to a country requiring an entry visa or other travel documents (passport, vaccination certificates, etc.) is obliged to be in possession of these documents. Should these documents not be in order, border control authorities will not allow the crossing the border.
 
The necessary document required for international travel is a valid passport (from May 1, 2004, passengers of Polish nationality travelling within the European Union may also use personal ID when travelling). Prior to leaving, we advise you to check what the requirements are for the validity of passports when crossing the borders of individual countries. This information may be obtained from embassies and the Ministry of Foreign Affairs.
 
Certain visas are required when crossing certain national borders. Information on visa requirements is provided by the embassy of the country in question and the Ministry of Foreign Affairs.