May I know where I can avail this Taipei Pass?

"Taipei Pass is also usable to take the metro and the city buses. The one-day ticket costs NT$180, two-day ticket costs NT$310, three-day ticket costs NT$440, and five-day ticket costs NT$700. They allow passengers to take the metro and city buses unlimitedly within the valid time."
and can I also use this to any train stations in provinces (outside the city)? Thanks!