Are there any special terms that I need to be aware of?

Please note: You must enter the first and last names of all passengers when you purchase the ticket. It is not possible to change names after you have purchased the ticket. If you are travelling with a dog that requires a ticket (larger than a domestic cat), enter the German name for dog (Hund) instead of a passenger name.

This applies to all tickets except the regional day tickets for Hessen and North Rhine-Westphalia.