Fare payment is via a barrier system accepting magnetic tickets and RFID like contactless cards. A rechargeable contactless smart card called "OPUS" unveiled on April 21, 2008 provides seamless integration with other transit networks of neighboring cities by being capable of holding multiple transport tickets: tickets, books or subscriptions, a subscription for Montreal only and commuter train tickets. Moreover, unlike the magnetic stripe cards, which had been sold alongside the new OPUS cards up until May 2009, the contactless cards are not at risk of becoming demagnetized and rendered useless and do not require patrons to slide them through a reader.