Revised Procedures in Seeking Prior Clearance from the Secretary for Variation Orders on Civil Works and Consultancy Services Contracts. Category: Department OrderSub Category: contracts-contractorsSeries: 2007No: 17File: DO_017_S2007.pdfDate: Wednesday, March 7, 2007Tags: Prior Clearance 017 Secretary Variation Orders Consultancy Contracts Read more about Revised Procedures in Seeking Prior Clearance from the Secretary for Variation Orders on Civil Works and Consultancy Services Contracts.