 The 66 rules were initially introduced in 2013.The principles apply to all governmental procurement activity but the rules only apply to projects or purchases exceeding $100,000 or construction projects valued over $10 million.Purchasers of certain common goods or services are required to use "All-of-Government contracts" (AoG) established by the Government Procurement Branch, overseen by the Procurement Functional Leader and managed by appointed procurement Centres of Expertise.