Designation of Engr. YOLANDA L. TANGCO as OIC Construction Division, DPWH Region I. Category: Special OrderSub Category: areas-responsibilities-authority-designationSeries: 2009No: 80File: SO_080_S2009.pdfDate: Thursday, May 21, 2009Tags: Designation YOLANDA TANGCO OIC Construction Div I 080Region: Region I Read more about Designation of Engr. YOLANDA L. TANGCO as OIC Construction Division, DPWH Region I.