The Contractor Performance Assessment Reports System (CPARS) allows agencies to rate the contractors with which they do business. A poor CPARS rating is a fairly serious matter for contractors, and can impair them from getting future contracts. Fortunately, contractors who feel they’ve unfairly received a negative review can file a claim under the Contract Disputes Act. But the process for attempting to correct a negative rating can be arduous, and relief is limited. The case of Vanquish Worldwide, LLC v. United States of America provides a solid template of what to do – and what not to do – for contractors who find themselves in a similar situation.