Category: Department OrderSub Category: contracts-contractorsSeries: 1989No: 142Superseded by: DO_193_s2016File: DO_142_S1989.pdfDate: Monday, September 18, 1989Superseded Link: http://www.dpwh.gov.ph/dpwh/sites/default/files/issuances/DO_193_s2016.pdfTags: Contracts Negative Slippages 15% 142