46th Partial List of Initial Accreditation of DPWH Materials Engineers. Category: Department OrderSub Category: human-resourceSeries: 2015No: 64File: DO_064_S2015.pdfDate: Monday, May 4, 2015Tags: 46th Initial Accreditation Materials EngineersBureaus and Services: Bureau of Research and Standards Read more about 46th Partial List of Initial Accreditation of DPWH Materials Engineers.