The Mandatory Disclosure Rule (FAR 52.203-13) requires contractors to disclose to the agency OIG, in writing, whenever the contractor has credible evidence of a violation of federal criminal law involving fraud, conflict of interest, bribery, or gratuity; a violation of the civil False Claims Act; or significant overpayment. Failure to disclose is grounds for suspension or debarment.
is a regulation concept federal contractors and grant writers run into across solicitations, regulations, and award filings
Mandatory Disclosure Rule is part of the federal regulatory framework that governs procurement, performance, or compliance. For contractors, Mandatory Disclosure Rule is not just background — it shapes solicitation language, evaluation criteria, source-selection authority, and what counts as compliant performance. Understanding when Mandatory Disclosure Rule applies and (more importantly) when it doesn't apply is the difference between a proposal that's competitive within its actual constraint set and one that over-engineers compliance. Contracting officers use Mandatory Disclosure Rule as common vocabulary, so reading their decisions, modifications, and source-selection memoranda gets easier when the regulation is in your working memory. Pair Mandatory Disclosure Rule with the related terms above to see how it interacts with adjacent regulatory mechanisms.
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