Designation of Ms. ARDELIZA R. MEDENILLA as Head, Central Procurement Office, DPWH. Category: Special OrderSub Category: areas-responsibilities-authority-designationSeries: 2010No: 167File: SO_167_S2010.pdfDate: Monday, August 23, 2010Tags: Designation ARDELIZA R. MEDENILLA Head Central Procurement Office. 167 Read more about Designation of Ms. ARDELIZA R. MEDENILLA as Head, Central Procurement Office, DPWH.