EE is only available at DL, and is generally offered M, Tu, Th, and Sat. (Special events may results in a change to the standard schedule). Most of the rides in Fantasyland and a couple of Tomorrowland rides are open, with portions of the park roped off until scheduled opening. There is no EE available for DCA, although the gates generally open to all guests 1/2 hour early, and Soarin' is usually open during that 1/2 hour. (Most of the park is roped off).
Guests at the Disney hotels currently get EE for any of the days that it is offered by showing their charge slip. Guests with park hopper plus tickets get one EE regardless of where they stay. (Note -- not all park hoppers, and especially not all of those of 2 days and less are park-hopper plus tickets with EE).