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FAR Clause

52.227-21

Technical Data Declaration, Revision, and Withholding of Payment—Major Systems.
View on acquisition.gov · View on eCFR.gov
Effective Date
MAY 2014
Active Deviations
Versions
1 (since 2017-01-01)
RFO
RFO Version Available

The Revolutionary FAR Overhaul has published a revised version of this clause. The RFO version supersedes the eCFR text below for contracts using the RFO model; see the RFO deviation for applicability.

View RFO version
52.227-21 Technical Data Declaration, Revision, and Withholding of Payment—Major Systems.

As prescribed in 27.409(j), insert the following clause:

Technical Data Declaration, Revision, and Withholding of Payment—Major Systems (MAY 2014)

(a)
Scope of declaration.
The Contractor shall provide, in accordance with 41 U.S.C. 2302(e)(7), the following declaration with respect to all technical data that relate to a major system and that are delivered or required to be delivered under this contract or that are delivered within 3 years after acceptance of all items (other than technical data) delivered under this contract unless a different period is set forth in the contract. The Contracting Officer may release the Contractor from all or part of the requirements of this clause for specifically identified technical data items at any time during the period covered by this clause.

(b)
Technical data declaration.
(1) All technical data that are subject to this clause shall be accompanied by the following declaration upon delivery:

Technical Data Declaration (JAN 1997)

The Contractor, ________, hereby declares that, to the best of its knowledge and belief, the technical data delivered herewith under Government contract No. ________ (and subcontract ________, if appropriate) are complete, accurate, and comply with the requirements of the contract concerning such technical data.

(End of declaration)

(2) The Government may, at any time during the period covered by this clause, direct correction of any deficiencies that are not in compliance with contract requirements. The corrections shall be made at the expense of the Contractor. Unauthorized markings on data shall not be considered a deficiency for the purpose of this clause, but will be treated in accordance with paragraph (e) of the Rights in Data—General clause included in this contract.

(c)
Technical data revision.
The Contractor also shall, at the request of the Contracting Officer, revise technical data that are subject to this clause to reflect engineering design changes made during the performance of this contract and affecting the form, fit, and function of any item (other than technical data) delivered under this contract. The Contractor may submit a request for an equitable adjustment to the terms and conditions of this contract for any revisions to technical data made pursuant to this paragraph.

(d)
Withholding of payment.
(1) At any time before final payment under this contract the Contracting Officer may withhold payment as a reserve up to an amount not exceeding $100,000 or 5 percent of the amount of this contract, whichever is less, if the Contractor fails to—

(i) Make timely delivery of the technical data;

(ii) Provide the declaration required by paragraph (b)(1) of this clause;

(iii) Make the corrections required by paragraph (b)(2) of this clause; or

(iv) Make revisions requested under paragraph (c) of this clause.

(2) The Contracting Officer may withhold the reserve until the Contractor has complied with the direction or requests of the Contracting Officer or determines that the deficiencies relating to delivered data, arose out of causes beyond the control of the Contractor and without the fault or negligence of the Contractor.

(3) The withholding of any reserve under this clause, or the subsequent payment of the reserve, shall not be construed as a waiver of any Government rights.

(End of clause)

[72 FR 63073, Nov. 7, 2007, as amended at 79 FR 24223, Apr. 29, 2014]
27.409(j)
(j) In accordance with 27.406-3(a), insert the clause at 52.227-21, Technical Data Declaration, Revision, and Withholding of Payment-Major Systems, in contracts for major systems acquisitions or for support of major systems acquisitions. This requirement includes contracts for detailed design, development, or production of a major system and contracts for any individual part, component, subassembly, assembly, or subsystem integral to the major system, and other property that may be replaced during the service life of the system, including spare parts. When used, this clause requires that the technical data to which it applies be specified in the contract (see 27.406-3(a)).
Prescription data sourced from eCFR as of 2026-06-10 03:16 UTC. Cross-references within the prescription are not resolved automatically.

Regulatory Stack

The layers of regulation that govern this clause, from the FAR prescription through agency-specific supplements and any active deviations.

RFO RFO Version Overhauled clause text
The Revolutionary FAR Overhaul publishes a revised version of this clause. See the RFO Version tab for the controlling authority under the RFO model.

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FAR FAR Prescription 27.409(j)
(j) In accordance with 27.406-3(a), insert the clause at 52.227-21, Technical Data Declaration, Revision, and Withholding of Payment-Major Systems, in contracts for major systems acquisitions or for support of major systems acquisitions. This requirement includes contracts for detailed design, development, or production of a major system and contracts for any individual part, component, subassembly, assembly, or subsystem integral to the major system, and other property that may be replaced during the service life of the system, including spare parts. When used, this clause requires that the technical data to which it applies be specified in the contract (see 27.406-3(a)).

View on acquisition.gov · View on eCFR.gov

Version History

Version history is sourced from the codified eCFR. Changes published only as class deviations or by the Revolutionary FAR Overhaul do not appear here until they are incorporated into the eCFR. For RFO-driven changes see the RFO Version tab and any active deviations cited above.

No version history available from eCFR.

RFO Version

Comparison of the codified eCFR text against the Revolutionary FAR Overhaul revision. Highlights show additions (green) and deletions (red, struck through).

Clause Text

Minor revisions. The RFO version has formatting or editorial changes from the eCFR text.
eCFR (codified)
RFO (implemented)
Unchanged
52.227-21 Technical Data Declaration, Revision, and Withholding of Payment-Major Systems.
eCFR (codified)
RFO (implemented)
19 removed
(b)
(b) Technical data declaration. (1) All technical data that are subject to this clause shall be accompanied by the following declaration upon delivery:
(b)
(b) Technical data declaration.
19 added
(1)
(1)
(1) All technical data that are subject to this clause shall be accompanied by the following declaration upon delivery:
3 added, 3 removed
The Contractor, ________, hereby declares that, to the best of its knowledge and belief, the technical data delivered herewith under Government contract No. ________ (and subcontract ________, if appropriate) are complete, accurate, and comply with the requirements of the contract concerning such technical data.
The Contractor, __________________, hereby declares that, to the best of its knowledge and belief, the technical data delivered herewith under Government contract No. _______ (and subcontract _________________, if appropriate) are complete, accurate, and comply with the requirements of the contract concerning such technical data.
43 removed
(d)
(d) Withholding of payment. (1) At any time before final payment under this contract the Contracting Officer may withhold payment as a reserve up to an amount not exceeding $100,000 or 5 percent of the amount of this contract, whichever is less, if the Contractor fails to—
(d)
(d) Withholding of payment.
43 added
(1)
(1)
(1) At any time before final payment under this contract the Contracting Officer may withhold payment as a reserve up to an amount not exceeding $100,000 or 5 percent of the amount of this contract, whichever is less, if the Contractor fails to-
15 removed
[72 FR 63073, Nov. 7, 2007, as amended at 79 FR 24223, Apr. 29, 2014]

Prescription

Substantive changes. The RFO prescription differs materially from the eCFR prescription.
eCFR (codified)
RFO (implemented)
Unchanged
52.227-21 Technical Data Declaration, Revision, and Withholding of Payment-Major Systems.: Prescription
eCFR (codified)
RFO (implemented)
106 added, 76 removed
(j)
(j) In accordance with 27.406-3(a), insert the clause at 52.227-21, Technical Data Declaration, Revision, and Withholding of Payment-Major Systems, in contracts for major systems acquisitions or for support of major systems acquisitions. This requirement includes contracts for detailed design, development, or production of a major system and contracts for any individual part, component, subassembly, assembly, or subsystem integral to the major system, and other property that may be replaced during the service life of the system, including spare parts. When used, this clause requires that the technical data to which it applies be specified in the contract (see 27.406-3(a)).
(j)
(a) The clause at 52.227-21, Technical Data Declaration, Revision, and Withholding of Payment—Major Systems, implements 41 U.S.C. 2302(e). When using the clause at 52.227-21, the section of the contract specifying data delivery requirements (see 27.406-1(b)) must expressly identify those line items of technical data to which the clause applies. Upon delivery of the technical data, review the technical data and the contractor's declaration relating to it to assure that the data are complete, accurate, and comply with contract requirements. If the data are not complete, accurate, or compliant, request the contractor to correct the deficiencies and withhold payment as necessary. Do not make final payment under the contract until determining that the delivery requirements of those line items of data to which the clause applies have been satisfactorily met.

Source: acquisition.gov RFO Part 52 · Prescribing Part 27

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