How do I activate my Eurail pass?
You need to activate your Eurail pass in a train station before you can start using it. It must be activated within 6 months of the issuing date. Once you have arrived in Europe, you can activate your pass at the ticket office of most large train stations.
A railway official will fill in the start and end date of your pass as well as your passport number. They will also stamp the pass in order to validate it.
Activation is only possible at train stations in participating Eurail countries. When you travel by train from a non-Eurail country, it is possible to have your pass validated on-board by train staff once you enter Eurail territory.