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DFARS Part 252 — The DFARS Clause Library (explainer)

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DFARS Part 252 — Solicitation Provisions and Contract Clauses

What this Part does

Part 252 is to DFARS what FAR Part 52 is to FAR: the library of clauses actually inserted into solicitations and contracts. The earlier DFARS Parts (203, 204, 212, 215, 225, 227, 232, 239, etc.) prescribe when to use each clause — Part 252 is where the clause text lives.

If you’re looking at a DoD contract’s Section I (contract clauses) and you see an entry like “DFARS 252.204-7012 — Safeguarding Covered Defense Information and Cyber Incident Reporting” with no text printed, the actual clause text is in this Part, incorporated by reference. Every contract clause this vault has under DFARS/Part 252/ is the verbatim clause text ready to be cited, transcluded, or pulled into a memo.

Subpart organization

DFARS 252 follows FAR 52’s numbering convention: the clause number after the dash mirrors the prescribing DFARS part (203 series for ethics, 204 series for admin/cyber, 212 series for commercial, etc.).

  • 252.201 — FAR System administration.
  • 252.203 — Anti-corruption, ethics (e.g., DFARS 252.203-7000).
  • 252.204 — Cyber + admin (e.g., 7008, 7012, 7019, 7020, 7021).
  • 252.209 — Contractor qualifications.
  • 252.211 — Describing needs.
  • 252.212 — Commercial-item DoD terms.
  • 252.215 — Negotiation (proposal formats, defective-pricing).
  • 252.216 — Contract types (incentive structures).
  • 252.219 — Small-business DoD specifics.
  • 252.222 — Labor laws, anti-trafficking.
  • 252.223 — Environmental.
  • 252.225 — Buy American + Berry + Specialty Metals (7008, 7009, 7012, 7015 and cousins).
  • 252.227 — Tech-data rights (the 7013/7014/7015/7017/7018 cluster).
  • 252.228 — Insurance.
  • 252.231 — Contract cost principles.
  • 252.232 — Contract financing (progress, PBP, EFT).
  • 252.235 — R&D.
  • 252.237 — Services.
  • 252.239 — IT / cloud (7010 FedRAMP).
  • 252.242 — Contract administration.
  • 252.243 — Modifications.
  • 252.244 — Subcontracting.
  • 252.245 — Government property.
  • 252.246 — Quality assurance.
  • 252.247 — Transportation.
  • 252.249 — Terminations.

When you’d look here

  • You’re reading a DoD contract’s Section I clause matrix and need to pull the text of a specific clause.
  • You’re drafting a subcontract flow-down and need to know which Part 252 clauses must flow (not all do; the flow-down requirement is inside each clause).
  • You’re annotating a memo with ![[DFARS 252.204-7012#^b-2-i|^b-2-i]] — paragraph-level transclusion of the exact regulatory text.
  • A client dispute over clause interpretation requires comparison against the official regulatory text to validate that the contract’s incorporated version is current.

Case study: flow-down of 252.204-7012 in a Tier-3 subcontract

Helix Propulsion (hypothetical), a prime contractor on a Navy propulsion program, had a first-tier subcontractor Meridian Manufacturing. Meridian, in turn, had a Tier-3 specialty supplier — Apex Coatings — providing a ceramic thermal-barrier coating application service. Apex had ~40 employees, no prior defense contracting experience, and no formal cyber program.

Apex’s work did not directly handle CDI. But Apex’s engineering team did receive technical drawings of components from Meridian that were marked as CDI. Helix’s prime contract incorporated DFARS 252.204-7012, which by its own terms requires flow-down “to subcontracts, or similar contractual instruments, for operationally critical support, or for which subcontract performance will involve covered defense information” — at every tier.

Meridian had flowed 7012 down to Apex. Apex had signed the subcontract without understanding it implied NIST SP 800-171 compliance and 72-hour incident reporting obligations running to DoD.

A cyber incident at Apex (credential theft targeting email) compromised some of the CDI drawings. Apex’s IT team noticed anomalous logins on a Wednesday morning. Apex was not on the DIBnet reporting system because no one at Apex had registered. Meridian and Helix learned of the incident 10 days later through an informal supplier-quality notification.

By that point, all three companies were out of compliance. The 72-hour clock ran from Apex’s discovery. Apex hadn’t reported. Meridian and Helix, once notified, were obligated to report promptly under their own flow-down of the clause. The contracting officer opened an investigation that expanded to Meridian and Helix’s own cyber programs.

Resolution took 9 months. Helix’s and Meridian’s programs were deemed substantively compliant. Apex was not. The CO did not propose debarment but required Apex to remedy its NIST SP 800-171 gaps or be removed from the supply chain. Meridian restructured: Apex was downgraded to non-CDI work only, and a new Tier-3 supplier with an existing cyber program was brought in for the CDI-adjacent work.

Teaching points:

  1. Flow-down at every tier. 252.204-7012 is not flow-down-to- first-tier-only; it propagates wherever CDI flows. Primes have reason to verify sub cyber posture before award.
  2. Registration on DIBnet is a gate. Subcontractors who never register have no mechanism to comply with the 72-hour clock. This should be verified at subcontract execution.
  3. Out-of-compliance subs become the prime’s problem. Once the CO opens an investigation of a sub, the prime’s own program gets scrutinized. Prime incident response plans should include sub inventory and posture.

How clauses come into a contract

  1. Prescription: an earlier DFARS Part (e.g., 204.7304(c)) says “the CO shall insert the clause at 252.204-7012 in solicitations and contracts when the contractor will have covered defense information on its systems.”
  2. Matrix inclusion: the CO adds the clause number to the Section I clause matrix of the solicitation, typically by reference (clause text not printed).
  3. Incorporation by reference into the awarded contract: the clause is legally present in the contract even if the text was never printed in the contract document.
  4. Flow-down: the clause itself, at its own paragraph (typically the last subsection labeled “Subcontracts”), specifies whether and how the clause flows to subcontractors. 7012 flows; many clauses do not.

To know what your client actually signed up for when they see a Section I entry for DFARS 252.XXX-YYYY, this vault is the authoritative source for the clause’s current text.

Key clauses (the most-cited ones)

Rather than repeat the full catalog, here are the DFARS 252 clauses that drive the most defense-advisory work, each linking to its note:

Cyber

Tech data / IP

Buy American / Berry / Specialty Metals

Pricing / financing

IT / cloud

Commercial items

  • DFARS 252.212-7001 — Contract Terms and Conditions Required to Implement Statutes or Executive Orders — Commercial (DoD flow-down matrix).
  • FAR Part 52 — The civilian clause library. FAR 52 clauses and DFARS 252 clauses coexist in DoD contracts; both are inserted.
  • Every substantive DFARS Part explainer (204, 215, 225, 227, etc.) points to its specific 252 clauses.

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