Equipment has been installed at all structures and the South Ashely open lot to use a stored value/pre-paid proximity card known as an Easy Pay Card. This card allows you to carry a balance and easily enter/exit the structure, while deducting funds from the card at the standard hourly rate.
Multiple cards can be purchased and share the same pre-paid balance (known as a company purse).  This allows a company to maintain and add money to one balance.