Paragraph 1.2.3 of the DOD Source Selection Procedures states: "Agencies shall consider the use of these procedures for orders under multiple award (Fair Opportunity) greater than $10 million." In other words, formal procedures are required for basic contracts greater than $10 million and are optional, based on the contracting officer's determination, for orders over $10 million. Of course, agencies or local contracting offices may implement lower thresholds.