Extending the Period between Prequalification Date and Opening of Bids to Give ample Time to Bidders to Prepare their Bids. Category: Department OrderSub Category: contracts-contractorsSeries: 1974No: 31File: DO_031_S1974.pdfDate: Wednesday, October 30, 1974Tags: Extending Period Prequalification Date Opening Bids 031 Read more about Extending the Period between Prequalification Date and Opening of Bids to Give ample Time to Bidders to Prepare their Bids.