Can a CO update the clauses in an existing contract when the FAR changes or when exercising options? in Vern Edwards' Blog A blog by Vern Edwards Posted November 14 · Report reply 40 minutes ago, StePa said: In my company's situation, we have decided to accept the modification as it does not impact us nor do we have subcontracts greater than $30,000 requiring us to collect and submit information in compliance with the clause. I think you're looking at it the right way -- you're making this a business and relationship decision, rather than a contracts decision. Even if you have a "right" to something (such as consideration for a change), that right has to be balanced with business and relationship. But since you're wondering from an academic perspective, I wonder -- if you did ask for compensation (consideration) for this modification, how would your prime respond? Your prime could (1) agree with you and increase the subcontract price; (2) laugh at you but continue the relationship; or (3) laugh at you and harden or end the relationship. So the answer is not one of the-FAR-says or contract rights -- it is one of leverage (business and relationship). In some cases, the prime contractor has the leverage -- in other cases, the subcontractor has the leverage. So the answer changes on a case-by-case basis.