Amending/Clarifying Department Order No. 8, Series of 1991.(Additional Document Requirement in the Prequalification of Constructors) Category: Department OrderSub Category: contracts-contractorsSeries: 1991No: 135File: DO_135_S1991.pdfDate: Tuesday, June 11, 1991Tags: Department Order No. 8S.1991 Document Requirement Prequalification Constructors contractor Read more about Amending/Clarifying Department Order No. 8, Series of 1991.(Additional Document Requirement in the Prequalification of Constructors)