It was not until 2008 when a new system by INIT GmbH began trials, using an electronic card to validate and purchase tickets. The Greencard system was introduced statewide during 2010, and allows for passengers to deposit a desired amount onto their cards, with the balance debited upon each trip. The Greencard system also requires validation on each boarding, and has a fare expiration of 90 minutes from the initial boarding. Unlike many other jurisdictions with electronic ticketing, passengers do not tag off at the end of their journey. Each bus has a single Greencard reader and ticket sales point, which is operated by the driver.