The subway, buses, and Staten Island Railway charge a single flat fare for each trip, regardless of time or distance traveled. From the MTA's inception until 2003, the agency collected subway and bus fares via a series of small metal tokens. The MTA cycled through several series of tokens throughout the late 20th century. In 1993, MTA started testing the MetroCard, a magnetic stripe card that would replace the tokens used to pay fares. By 1997, the entire bus and subway system accepted MetroCard, and tokens were no longer accepted for fare payment in 2003.