You have a BahnCard? Then you can now use that same long distance travel ticket in Bremen, Bremerhaven, Delmenhorst, and Oldenburg as your ticket for a bus, regional train or tram to your departure train station. The ‘+City’ arrangement used to only apply for the destination train station before now. Please always take note of the relevant coverage, i.e. the tariff zone covered by your CityTicket for Bremen (Tariff Zones 100 and 101), Bremerhaven (Tariff Zone 250), Oldenburg (Tariff Zone 740), and Delmenhorst (Tariff Zone 710). The authorization to use the public transport ist indicated by the "+City" on the ticket (also on online- and mobile tickets).
The DB Companion regulations (children under the age of 15 travel free) are not recognised within the scope of the partner cooperation CityTicket and BahnCard 100 with the VBN public transport carriers in Bremen, Bremerhaven, Oldenburg, and Delmenhorst. That means: A SingleTicket for Kids will have to be purchased in these cities for children travelling free of charge with DB.
Should your actual destination lie outside the cities of Bremen, Bremerhaven, Oldenburg, or Delmenhorst, then you will have to purchase at least one SingleTicket to cover the trip to your destination. You cannot purchase a connection ticket as an add-on to the CityTicket (BahnCard 25 or 50).
The BahnCard 100 is, however, valid as a timed ticket for VBN public transport services in the cities of Bremen, Bremerhaven, Oldenburg, and Delmenhorst. If you would like to use your BahnCard 100 for trips beyond the city limits by using the regional buses, then you have to purchase a connection ticket in accordance with the VBN Tariff Provisions & Conditions for Transport. The local trains an buses of Weser-Ems-Bus can be used within VBN network without any extra charge.