ing ▁the ▁fare card . ▁ ▁F ares ▁Part icip ating ▁trans it ▁systems ▁have ▁different ▁far es ▁and ▁fare ▁policies ▁when ▁using ▁the ▁Pr esto ▁card ▁compared ▁to ▁traditional ▁fare ▁media ; ▁generally , ▁passengers ▁receive ▁a ▁disc ount ▁using ▁Pr esto ▁compared ▁to ▁c ash ▁far es . ▁The ▁implementation ▁of ▁the ▁Pr esto ▁card ▁has ▁also ▁un ified ▁the ▁fare ▁categories ▁of ▁GO ▁Trans it ▁and ▁local ▁trans it ▁ag encies , ▁with ▁local ▁trans it ▁ag encies ▁adopt ing ▁the ▁GO ▁Trans it ▁standard : ▁local ▁trans it ▁ag encies ▁used ▁to ▁have ▁different ▁age ▁limits ▁for ▁child ▁and ▁senior ▁far es ▁and ▁different ▁types ▁of ▁students ▁that ▁may ▁use ▁student ▁far es ▁( some ▁ex cluding ▁post - second ary ▁students ▁while ▁others ▁do ▁not ). ▁Register ed ▁Pr esto ▁card ▁hold ers ▁are ▁ass essed ▁the ▁senior ▁or ▁child ▁far es ▁as ▁appropriate . ▁Student ▁fare ▁classification ▁must ▁be ▁activ ated ▁by ▁the ▁card - iss uing ▁trans it ▁authority ▁through ▁its ▁normal ▁procedures , ▁which ▁differ ▁between ▁trans it ▁systems . ▁For ▁example , ▁post - second ary ▁student ▁far es ▁are ▁class ified ▁as ▁students ▁in ▁only ▁GO ▁Trans it ▁and ▁Mi W ay , ▁while ▁the ▁rest ▁class ify ▁them ▁under ▁the ▁adult ▁category . ▁ ▁Other ▁Pr esto ▁card ▁fare ▁notes : ▁Dur ham ▁Region ▁Trans it : ▁D RT / GO ▁Bus ▁integration ▁is ▁not ▁supported ▁with ▁the ▁Pr esto ▁card . ▁Pass engers ▁taking ▁a ▁GO ▁Trans it ▁route ▁where ▁D