~I I I -2- 1. Participation. A retirement plan is hereby established for the American University in Cairo. Classes of employees eligible for participation are as follows: All regular nonUAR full-time administrative staff and members of the Faculty. Participation of eligible individuals shall be: a) Voluntary after completion of I year of service. b} Required after completion of 3 years of service and attainment of age 30. The preliminary service period will be waived for an employee otherwise eligible who already owns a retirement annuity contract issued by Tezchers Insurance and Annuity Association. and/or an acceptable church or other pension fund. II. All participants in this retirement plan shall retire at the end of the ac~demic year ...