The GAO’s bid protest jurisdiction typically does not extend to reviews of contract modifications.
In a recent GAO bid protest decision, Cornische Aviation & Maintenance, LTD, B-405013.4 (Jan. 25, 2013), the GAO held that the protester’s allegations regarding a contract modification were not within the scope of the GAO’s bid protest function. The Cornische Aviation GAO bid protest decision demonstrates the GAO’s limited ability (or willingness, depending on one’s point of view) to decide bid protests involving contract modifications.