The SmarTrip card can be used for parking at select Metro stations in the Washington Metropolitan area. To utilize this feature, users must first ensure that the specific station they plan to use offers parking payment through the SmarTrip card. When parking at these stations, users can pay for their parking fees directly by tapping their SmarTrip card at the designated parking payment kiosks after they park their vehicle. It is important to note that not all Metro stations provide this service, so it is advisable for users to check the parking options available at their chosen station. Additionally, users may want to confirm the rates and any specific procedures for parking payment with the Metro Parking page on the Washington Metro Authority website for the most up-to-date information. This will help ensure a smooth experience while using their SmarTrip card for parking.