• in Germany – districts (Landkreise) of Mecklen­burg-Vorpommern: Nordwestmecklenburg, Rostock, Vorpommern-Rügen, Vorpommern-Greifswald and district-free city (kreisfreie Stadt): Rostock;
  • in Denmark – Regional Municipality of Bornholm and Region Zealand (subregions: Østsjælland, Vest- og Sydsjælland);
  • in Lithuania – counties of Klaipėda, Tauragė and Telšiai;
  • in Poland – subregions of: Miasto Szczecin, Szczeciński, Stargardzki, Koszaliński, Słupski, Starog­ardzki, Gdański, Trójmiejski and Elbląski.
  • in Sweden – counties of: Kalmar, Blekinge, Skåne and Kronoberg;