Travel in your own country
Interrail Passes are designed to offer you the best of rail travel abroad. Therefore, you cannot use an Interrail One Country Pass to travel in your own country. An Interrail Global Pass is valid for travel in your country of residence during one outbound journey and one inbound journey that occur during travel days at any point in your trip.
With your Interrail Pass, you can travel on trains operated by the national railway companies.