| Abbreviation | Designation | |
|---|---|---|
| RSBN | Regio-S-Bahn Bremen/Niedersachsen (HB/NI) (German) | franchise / concession |
| RS | Regio-S-Bahn Bremen/Niedersachsen (German) Bremen S-Bahn | regional division |
| Abbreviation | Designation | |
|---|---|---|
| RSBN | Regio-S-Bahn Bremen/Niedersachsen (HB/NI) (German) | franchise / concession |
| RS | Regio-S-Bahn Bremen/Niedersachsen (German) Bremen S-Bahn | regional division |