FAR 52.230-4—Disclosure and Consistency of Cost Accounting Practices-Foreign Concerns.
Plain-English Summary
FAR 52.230-4 is the CAS clause used for foreign concerns and sets out the contractor’s obligations for cost accounting standards compliance, disclosure of cost accounting practices, consistency in applying those practices, equitable adjustments when practices change, remedies for noncompliance, dispute handling, audit/access rights, and flowdown to subcontracts. It ties the contract to CAS 401 and 402, and for CAS-covered contracts it also requires disclosure of cost accounting practices through the Disclosure Statement process. The clause explains how changes to cost accounting practices must be negotiated and applied prospectively, when the Government may recover increased costs plus interest, and how disagreements over compliance or adjustments are treated as contract disputes. It also gives the Government access to records needed to verify compliance and requires the contractor to flow the substance of the clause to applicable negotiated subcontracts, with important exceptions for other CAS coverage, the lower CAS threshold, and exempt subcontracts. In practice, this clause is about keeping cost accounting methods consistent, transparent, and fair so the Government pays only its proper share of costs and can recover overcharges if the contractor or a subcontractor departs from required CAS or established practices.
Key Rules
Comply with CAS 401 and 402
The contractor must follow the CAS requirements for consistency in estimating, accumulating, and reporting costs, and for consistency in allocating costs incurred for the same purpose. These standards apply as in effect on the contract award date.
Disclose cost practices when covered
For CAS-covered contracts, a business unit required to submit a Disclosure Statement must disclose its cost accounting practices in writing under the CAS disclosure rules. If the contractor identifies the statement as containing privileged trade secrets or confidential commercial or financial information, the Government must protect it from release outside the U.S. Government.
Use cost practices consistently
The contractor must apply its cost accounting practices consistently. If either party proposes a change, the contractor must negotiate the terms and conditions with the Contracting Officer, and once agreed, the change is applied prospectively and the Disclosure Statement must be updated if affected.
Equitable adjustment for approved changes
If the parties agree to a change and the Contracting Officer makes the required finding that the change is desirable and not detrimental to the Government, the contractor must negotiate an equitable adjustment under the Changes clause. Without that finding, no agreement under this clause may increase Government costs.
Repay increased costs plus interest
If the contractor or a subcontractor fails to comply with CAS or fails to follow its cost accounting practices and the Government pays increased costs, the contract price or cost allowance must be adjusted to recover those costs. The recovery includes interest calculated under the Internal Revenue Code rate specified in the clause.
Disputes go under Contract Disputes
If the parties cannot agree on CAS compliance or on a demanded cost adjustment, the disagreement is a dispute under the Contract Disputes Act. This means the issue is handled through the normal claims and disputes process rather than informal disagreement.
Government access to records
The contractor must allow authorized Government representatives to examine and copy documents, papers, and records related to compliance with the clause. This supports audits, reviews, and verification of cost accounting practice compliance.
Flowdown to subcontracts
The contractor must include the substance of this clause, except the disputes paragraph, in all negotiated subcontracts and require inclusion in all lower-tier subcontracts, subject to exceptions. If the subcontractor is subject to a different CAS clause because of its business unit status, the applicable FAR 30.201-4 clause must be used instead; the flowdown applies only above the lower CAS threshold and does not apply to otherwise exempt subcontracts.
Responsibilities
Contractor
Comply with CAS 401 and 402; disclose cost accounting practices when required; keep practices consistent; negotiate proposed changes with the Contracting Officer; apply agreed changes prospectively; amend the Disclosure Statement if needed; agree to equitable adjustments when the required Government finding is made; repay increased costs plus interest if noncompliance causes overcharges; permit Government access to relevant records; and flow down the clause to covered subcontracts.
Contracting Officer
Administer the clause; negotiate and document terms for approved cost accounting practice changes; make the required finding that a change is desirable and not detrimental before any equitable adjustment can be agreed to under the clause; pursue recovery of increased costs when noncompliance occurs; and ensure the proper CAS clause is used in subcontracts when applicable.
U.S. Government
Review disclosures and compliance, protect confidential Disclosure Statements when properly designated, determine whether a cost accounting practice change is desirable and not detrimental, demand cost adjustments when noncompliance increases Government costs, and use audit/access rights to verify compliance.
Subcontractor
When the flowdown applies, comply with the substance of the clause or the applicable alternate CAS clause, follow required cost accounting practices, and support compliance and record access obligations as passed down through the prime contractor.
Authorized Government representatives
Examine and copy documents, papers, and records relating to compliance with the clause for audit, review, or enforcement purposes.
Practical Implications
Contractors need tight internal controls over cost accounting practices because even a change that seems minor can trigger negotiation, Disclosure Statement updates, and prospective application only.
The Government can recover increased costs with interest, so noncompliance is not just a documentation issue; it can become a direct financial liability.
The clause makes subcontract flowdown a real compliance task, especially for negotiated subcontracts above the lower CAS threshold, so primes should screen subcontract awards carefully.
Disputes over CAS compliance or cost adjustments are formal Contract Disputes Act matters, so parties should document positions, findings, and calculations early.
Foreign concerns should pay close attention to which CAS clause applies at the business-unit level and whether any subcontract is exempt or subject to a different CAS coverage regime.
Official Regulatory Text
As prescribed in 30.201-4 (c)(1) , insert the following clause: Disclosure and Consistency of Cost Accounting Practices-Foreign Concerns (Jun 2020) (a) The Contractor, in connection with this contract, shall- (1) Comply with the requirements of 48 CFR 9904.401 , Consistency in Estimating, Accumulating, and Reporting Costs; and 48 CFR 9904.402 , Consistency in Allocating Costs Incurred for the Same Purpose, in effect on the date of award of this contract, as indicated in 48 CFR 9904 . (2) (Cost Accounting Standard (CAS)-covered Contracts Only). If it is a business unit of a company required to submit a Disclosure Statement, disclose in writing its cost accounting practices as required by 48 CFR 9903.202-1 through 48 CFR 9903.202-5 . If the Contractor has notified the Contracting Officer that the Disclosure Statement contains trade secrets and commercial or financial information which is privileged and confidential, the Disclosure Statement shall be protected and shall not be released outside of the U.S. Government. (3) (i) Follow consistently the Contractor’s cost accounting practices. A change to such practices may be proposed, however, by either the U.S. Government or the Contractor, and the Contractor agrees to negotiate with the Contracting Officer the terms and conditions under which a change may be made. After the terms and conditions under which the change is to be made have been agreed to, the change must be applied prospectively to this contract, and the Disclosure Statement, if affected, must be amended accordingly. (ii) The Contractor shall, when the parties agree to a change to a cost accounting practice and the Contracting Officer has made the finding required in 48 CFR 9903.201-6(c) that the change is desirable and not detrimental to the interests of the U.S. Government, negotiate an equitable adjustment as provided in the Changes clause of this contract. In the absence of the required finding, no agreement may be made under this contract clause that will increase costs paid by the U.S. Government. (4) Agree to an adjustment of the contract price or cost allowance, as appropriate, if the Contractor or a subcontractor fails to comply with the applicable CAS or to follow any cost accounting practice, and such failure results in any increased costs paid by the U.S. Government. Such adjustment shall provide for recovery of the increased costs to the U.S. Government, together with interest thereon computed at the annual rate established under section 6621(a)(2) of the Internal Revenue Code of 1986 ( 26 U.S.C. 6621(a)(2) ) for such period, from the time the payment by the U.S. Government was made to the time the adjustment is effected. (b) If the parties fail to agree whether the Contractor has complied with an applicable CAS rule, or regulation as specified in 48 CFR 9903 and 48 CFR 9904 and as to any cost adjustment demanded by the U.S. Government, such failure to agree will constitute a dispute under 41 U.S.C. chapter 71 , Contract Disputes. (c) The Contractor shall permit any authorized representatives of the U.S. Government to examine and make copies of any documents, papers, and records relating to compliance with the requirements of this clause. (d) The Contractor shall include in all negotiated subcontracts, which the Contractor enters into, the substance of this clause, except paragraph (b), and shall require such inclusion in all other subcontracts of any tier, except that— (1) If the subcontract is awarded to a business unit which pursuant to 48 CFR 9903.201-2 is subject to other types of CAS coverage, the substance of the applicable clause prescribed in Federal Acquisition Regulation (FAR) 30.201-4 shall be inserted. (2) The requirement in this paragraph (d) shall apply only to negotiated subcontracts in excess of the lower CAS threshold specified in FAR 30.201-4 (b) on the date of subcontract award. (3) The requirement shall not apply to negotiated subcontracts otherwise exempt from the requirement to include a CAS clause as specified in 48 CFR 9903.201-1 . (End of clause)