Designation of Engr. ERNESTO LIBUNAO as Officer-In-Charge, Internal Audit Service, DPWH. Category: Special OrderSub Category: areas-responsibilities-authority-designationSeries: 2007No: 150File: SO_150_S2007.pdfDate: Tuesday, September 11, 2007Tags: Designation ERNESTO LIBUNAO OIC Internal Audit Service IAS 150Bureaus and Services: Internal Audit Service Read more about Designation of Engr. ERNESTO LIBUNAO as Officer-In-Charge, Internal Audit Service, DPWH.