In order to get the reductions foreseen for disability, it is necessary to show at the ticket office a certification of civil invalidity that express the percentage of invalidity, without describing the pathology.
In order to take advantage of the reductions, the disability must at 70% or greater and the reduction applied amounts to 50% on all kind of ticket.
One accompanying person, if required by the civil invalidity certification, get the same reduction.
Kids with disability always get a 50% reduction and, until he turn 18 years old, an accompanying person get the same reduction.