Category: Department OrderSub Category: infra-projSeries: 2015No: 171Superseded by: DO_041_s2016File: DO_171_s2015.pdfDate: Friday, November 13, 2015Superseded Link: http://www.dpwh.gov.ph/dpwh/sites/default/files/issuances/DO_041_s2016.pdfTags: Policy Guidelines Maintenance National Roads Bridges infra BOM 171Bureaus and Services: Bureau of Maintenance