Guidelines on the Provisional Accreditation of DPWH Materials Engineers and Materials Inspectors. Category: Department OrderSub Category: human-resourceSeries: 2018No: 108File: DO_108_s2018.pdfDate: Wednesday, July 25, 2018Tags: Guidelines on the Provisional Accreditation of DPWH Materials Engineers and Materials InspectorsBRS 108 humanBureaus and Services: Bureau of Research and Standards Read more about Guidelines on the Provisional Accreditation of DPWH Materials Engineers and Materials Inspectors.