Security Prohibitions and Exclusions
A contract clause under the Federal Acquisition Regulation, placed in Uniform Contract Format Section I (Contract clauses).
When it applies
Required by 40.205(b) under new FAR Part 40 (Information Security and Supply Chain Security).
Prescription
The FAR directs use of 52.240-91 at 40.205(b) — read the prescribing section on acquisition.gov →.
Official text
The full, authoritative text of 52.240-91 is on acquisition.gov: View FAR 52.240-91 →
Frequently asked questions
When does FAR 52.240-91 apply?
Required by 40.205(b) under new FAR Part 40 (Information Security and Supply Chain Security).
Where is FAR 52.240-91 prescribed?
The FAR prescribes 52.240-91 at 40.205(b). ArcClause selects it automatically when your acquisition triggers that prescription.
Is FAR 52.240-91 a solicitation provision or a contract clause?
52.240-91, Security Prohibitions and Exclusions, is a contract clause under the Federal Acquisition Regulation.
Is FAR 52.240-91 incorporated by reference or set out in full text?
52.240-91 is typically incorporated by reference in the contract.
Where can I read the official text of FAR 52.240-91?
The full, authoritative text of 52.240-91 is published on acquisition.gov.
How do I know which clauses apply to my acquisition?
ArcClause builds a complete FAR/DFARS clause matrix for your acquisition automatically — enter your parameters and it selects every applicable provision and clause, including 52.240-91 when triggered. It is free to use at https://www.aframesolutions.com/arcclause.
Which clauses does your solicitation need?
Answer a short wizard and ArcClause builds your full FAR & agency-supplement matrix, with the prescription behind every row, aware of both the legacy FAR and the FAR Overhaul deviations your agency has adopted. Get it emailed to you as Word & Excel. Free, no login.