| Region/Risk Zone | BG | CR | HU | RO |
|---|---|---|---|---|
| 1 | Sofiya-Grad (incl. City of Sofiya) | Zagrebacka | City of Budapest | Alba |
| 2 | Sofiya | Krapinsko-zagorska | Gyor-Sopron | Arad |
| 3 | Pernik | Sisacko-moslavacka | City of Gyor | Arges |
| 4 | Kyustendil | Karlovacka | Vas | Bacau |
| 5 | Blagoevgrad | Varazdinska | Zala | Bihor |
| 6 | Pazardzhik | Koprivnicko-krizevac | Veszprem | Bistrita-Nasaud |
| 7 | Smolyan | Bjelovarsko-bilogors | Somogy | Botosani |
| 8 | Plovdiv | Primorsko-goranska | Komarom | Braila |
| 9 | Kurdzahli | Licko-senjska | Fejer | Brasov |
| 10 | Khaskovo | Viroviticko-podravsk | Tolna | Buzau |
| 11 | Stara Zagora | Pozesko-slavonska | Baranya | Caras-Severin |
| 12 | Sliven | Brodsko-posavska | City of Pecs | Calarasi |
| 13 | Yambol | Zadarska | Nograd | Cluj |
| 14 | Burgas | Osjecko-baranjska | Pest | Constanta |
| 15 | Varna | Sibensko-kninska | Bacs-Kiskun | Covasna |
| 16 | Tolbukin | Vukovarsko-srijemska | Borsod-Abauj-Zemplen | Dimbovita |
| 17 | Shumen | Splitsko-dalmatinska | City of Miskolc | Dolj |
| 18 | Silistra | Istarska | Heves | Galati |
| 19 | Razgrad | Dubrovacko-neretvanska | Szolnok | Giurgiu |
| 20 | Turgovishte | Medimurska | Csongrad | Gorj |
| 21 | Ruse | Grad Zagreb | Szabolcs-Szatmar | Harghita |
| 22 | Turnovo | Hadju-Bihar | Hunedoara | |
| 23 | Gabrovo | City of debrecen | Ialomita | |
| 24 | Lovech | Bekes | Iasi | |
| 25 | Pleven | Maremures | ||
| 26 | Vrasta | Mehedinti | ||
| 27 | Mikhaylovgrad | Mures | ||
| 28 | Vidin | Neamt | ||
| 29 | Olt | |||
| 30 | Prahova | |||
| 31 | Salaj | |||
| 32 | Satu Mare | |||
| 33 | Sibiu | |||
| 34 | Suceava | |||
| 35 | Teleorman | |||
| 36 | Timisoara | |||
| 37 | Tulcea | |||
| 38 | Vaslui | |||
| 39 | Vilcea | |||
| 40 | Vrancea | |||
| 41 | Bucuresti |