and lots effective June 28, 2004. The decision prompted complaints that Metro was inconveniencing its many customers, including tourists and other infrequent users, who did not own a SmarTrip card. In April 2007, WMATA began testing the use of credit cards to pay for parking at six Metro stations, avoiding the need to pay for parking with SmarTrip cards at those stations. The sites are Anacostia on the Green Line, Shady Grove on the Red Line, Vienna and New Carrollton on the Orange Line, and Franconia-Springfield and Largo Town Center on the Blue Line. One exit lane at each station accepts credit card payments through a reader next to the existing SmarTrip card target. WMATA has since announced that it will make at least one credit card exit lane available at all Metro pay-on-exit parking facilities. Participating systems The following is a list of transit systems that accept the SmarTrip card for payment. The Maryland Transit Administration's CharmCard uses a compatible payment system from the same manufacturer. A reciprocity agreement allows patrons to use either payment card to travel on any of the participating systems throughout the Baltimore-Washington Metropolitan Area. However, digital SmarTrip cards stored in Apple Wallet will not work on any Baltimore MTA vehicle. *Select routes do not accept SmarTrip as payment. Other area transportation The following systems serve the Baltimore–Washington Area, but do not currently accept SmarTrip or CharmCard as payment *Select routes do accept SmarTrip. **SmarTrip can be used to purchase a paper or digital ticket in lieu of a credit or debit card through certain DC area employers enrolled in the SmartBenefits program. ***This service is free to all users and does not collect fares. Transfers References External links SmarTrip home page Cubic Transportation Systems Fare collection systems in the United States Contactless smart cards Washington Metropolitan Area Transit Authority