Currently, over 20,000 parking spaces are available at the airport. These spaces are split between the short-term-parking garage, the long-term-parking garage, and the economy parking garage. As of now, there is an ongoing expansion of the Economy Parking Garages, which is in its second phase of construction. The SunPass Plus program, first introduced at Orlando International Airport, is being implemented at TPA in stages. In early 2009, the Economy Parking Garages began using the program, in which customers can use their SunPass transponders to pay for parking. The program was expanded to the short- & long-term garages during the summer of 2009. TIA also provides self-serve lanes in which customers can pay via credit card instead of waiting in line for the cash lanes.