For purposes of federal law, a bid protest involves a written objection to the conduct of government agencies in acquiring supplies and services for their direct use or benefit. Such conduct can include (1) soliciting or otherwise requesting offers; (2) cancelling such solicitations or requests; (3) awarding or proposing to award a contract; (4) terminating or cancelling a contract due to improprieties involving its award; or (5) converting functions performed by government employees to private sector performance. Bid protests are of perennial interest to Congress, in part, because of the effects of protests on agency missions and operations. Congressional interest can also be prompted by notable protests (e.g., SpaceX's recent protest of contracts for launch services), as well as by agency determinations not to follow any nonbinding recommendations made by the Government Accountability Office (GAO) in deciding protests.