Pescribing Guidelines for the Preparation, Processing and Approval of Variation Orders and As-Staked Plans. Category: Department OrderSub Category: infra-projSeries: 1998No: 62File: DO_062_S1998.pdfDate: Friday, April 3, 1998Tags: Guidelines Preparation Processing Approval Variation Orders As-Staked Plans infra 062 Read more about Pescribing Guidelines for the Preparation, Processing and Approval of Variation Orders and As-Staked Plans.