Collegiate Chapters are chartered in institutions of higher learning and derive their names from the Greek alphabet in the regular sequence according to the date of installation. Alumni Chapters are chartered by the Delta Omicron Board of Directors upon receipt of a petition signed by the required number of members. Chapters derive their names from the Greek alphabet in its regular sequence prefixed by Zeta, Eta, Theta, and Beta , according to date of installation. International Chapters , collegiate or alumni, are chapters established outside the boundaries of the United States.
Collegiate chapters derive their names from the Greek alphabet, prefixed by the letter Kappa .
Alumni chapters derive their names by using the name of the nearest collegiate chapter prefixed by the letter Zeta . Alumni Clubs are composed of initiated members who are no longer affiliated with a collegiate chapter. The Club derives its name from its location, and may petition the Board of Directors when its membership reaches the number required for an alumni chapter. Membership Membership in Delta Omicron is composed of collegiate members, chapter mothers, professional and national honorary members.