Category: Special OrderSub Category: areas-responsibilities-authority-designationSeries: 2017No: 47File: SO_047_s2017.pdfDate: Wednesday, March 22, 2017Tags: Designation Engr. EDWIN M. SALES as Officer-In-ChargeOffice of the ChiefQuality Assurance and Hydrology DivisionDPWH Region VI 47Region: Region VI