<P> The first iteration of the card--commonly referred to as the "purple HOP card"--was discontinued in 2012 because of issues with the delivery of key technologies . The current card, called the AT HOP card, is in use on all ferry, train and bus services in Auckland . The rollout of the card to all three transport modes was completed in March 2014 . </P> <P> The AT HOP card is a dark blue credit - card - sized stored - value contactless smartcard that can hold prepaid funds (called HOP Money) to pay for fares or for monthly passes for unlimited travel within one or more of three "transport zones". Either facility must be added to the card before travel . Passengers "tag on" and "tag off" their card on electronic terminals when entering and leaving the transport system in order to validate it or deduct funds . </P> <P> Cards may be "topped - up" or monthly passes purchased in the following ways: online, at ticket machines, at ticketing offices, and at selected retail outlets such as bookshops . Top ups may be made by credit or debit card, with the latter three mediums accepting cash payment . The card is designed to reduce the number of transactions at ticket offices and the number of paper tickets . Usage is encouraged by offering cheaper fares than the cash ticket option, although there is an initial once - only fee to purchase the card . Monthly and / or multiple trip travel is only available with the AT HOP card . </P> <P> The card can be used only for fare payments and only on Auckland Transport routes; it cannot be used to pay for refreshments or other items . It cannot be used to pay for travel on the Northern Explorer passenger train running between Auckland and Wellington or on inter-city bus services . </P>

Where do you get an at hop card