Government contracts often include first article testing (FAT) requirements to ensure the contractor can supply a product that meets the contract requirements for acceptance. Such contracts incorporate the clause at FAR 52.209-3 (Contractor Testing) or FAR 52.209-4 (Government Testing) to impose FAT requirements on the contractor. Both clauses allow the government to waive the FAT requirements where the contractor has previously furnished supplies of identical or similar items that the government has accepted. An improper waiver of the FAT …