The easiest thing is to just sign up for Dollar Express, the reason some locations are rebranding is due to the requirement for Hertz to divest various Dollar and Thrifty locations when it bought them. Thrifty has closed at DCA (for about a couple of months now) there is only Dollar which is at an offsite location and they share the same location with Advantage. It looks like they are getting ready to operate Dollar and Thrifty in local markets where Hertz Local Editions are (based on the Dollar and Thrifty websites)