| 1 | ALBANIA – MINISTRY OF TRANSPORT AND INFRASTRUCTURE |
| 2 | BOSNIA AND HERZEGOVINA – MINISTRY OF COMMUNICATIONS AND TRANSPORT |
| 3 | CROATIA – MINISTRY OF MARITIME AFFAIRS, TRANSPORT AND INFRASTRUCTURE |
| 4 | THE FORMER YUGOSLAV REPUBLIC OF MACEDONIA – MINISTRY OF TRANSPORT AND COMMUNICATIONS |
| 5 | MONTENEGRO – MINISTRY OF TRANSPORT AND MARITIME AFFAIRS |
| 6 | SERBIA – MINISTRY OF CONSTRUCTION, TRANSPORT AND INFRASTRUCTURE |
| 7 | KOSOVO* – MINISTRY OF INFRASTRUCTURE |
| 8 | UNITED NATIONS INTERIM ADMINISTRATION MISSION IN KOSOVO (UMNMIK)online |
| 9 | EUROPEAN COMMISSION -– DIRECTORATE-GENERAL FOR MOBILITY AND TRANSPORT (DG MOVE) |