Make sure to check in before starting your public transport journey!
Once you have checked in, you can travel anywhere within the area of validity of the FAIRTIQ region (click on your region to know more about the area of validity).
If you run into a ticket inspector, just click on "display ticket".
However, be careful: You are responsible to make sure that the trip has correctly been started before boarding the vehicle. If FAIRTIQ has not been correctly activated, you DO NOT OWN a valid ticket.