Exemption of OECF-Assisted Projects From The Provisions of D.O. 55 Series of 1991. Category: Department OrderSeries: 1993No: 70File: DO_070_S1993.pdfDate: Thursday, March 18, 1993Tags: Exemption OECF-Assisted Projects Provisions D.O. 55 070 Read more about Exemption of OECF-Assisted Projects From The Provisions of D.O. 55 Series of 1991.