Amendment to DO No. 36 S. 1975 Prescribing Rules and Regulations Governing Procurement of Supplies and Non-Personal Services. Category: Department OrderSub Category: equipment-supplies-propertiesSeries: 1977No: 36File: DO_036-C_S1977.pdfDate: Thursday, March 3, 1977Tags: Rules Regulations Procurement Supplies Personal Servies 036-C Read more about Amendment to DO No. 36 S. 1975 Prescribing Rules and Regulations Governing Procurement of Supplies and Non-Personal Services.