Epic Classes gain regular bonus epic feats which can be selected from a list specific to that class.
If a class has bonus feats pre-epic then it will be possible to select epic feats if the character as a whole is epic.
e.g. A character with 9 levels of Ranger but a total of 21 levels. When selecting a 10th level of Ranger, the character will be able to choose an epic feat from the epic Ranger feat list in addition to the usual Favored Enemy feat options.