Reassignment of Engr. MARCELO B. RIVERA as District Engineer of Zambales Engineering District, Region III. Category: Department OrderSub Category: areas-responsibilities-authority-designationSeries: 1995No: 13File: DO_013_S1995.pdfDate: Monday, January 2, 1995Tags: Designation MARCELO RIVERA District Engineer Zambales III 013Region: Region III Read more about Reassignment of Engr. MARCELO B. RIVERA as District Engineer of Zambales Engineering District, Region III.