Belgium has updated the list of coronavirus travel restrictions for travelers arriving to the country. As of September 30, 2020 the only restriction-free regions are as follows:
Bulgaria: regions North Central, North West
Croatia: provinces of Istria, Varaždin
Italy: Regions of Calabria and Marche
Poland: Regions of West Pomeranian, Lubusz, Lower Silesian, Silesia
San Marino
Sweden: Region of Middle Norrland