Chi Omega does have a few "Special Initiates" each year. It is a fairly rare thing. It is intended for women who had certain circumstances that prevented them from membership as a collegian.
Nominations are submitted to the Governing Council (National Officers) and can be sent in by an alumnae chapter, a collegiate chapter or an individual alumna. (Approval of the local alumnae chapter is required.)
XΩ Alumna --33 Year member