Guidelines on Pre-Construction Activities, Contract Processing, and Pre-Payment Review by the Implementing Offices. Category: Department OrderSub Category: contracts-contractorsSeries: 1988No: 83File: DO_083_S1988.pdfDate: Thursday, September 29, 1988Tags: Guidelines Contract Processing Pre-Payment Review contract 083 Read more about Guidelines on Pre-Construction Activities, Contract Processing, and Pre-Payment Review by the Implementing Offices.