FAR 52.242-4—Certification of Final Indirect Costs.
Plain-English Summary
FAR 52.242-4, Certification of Final Indirect Costs, requires contractors to formally certify proposals used to establish or modify final indirect cost rates. The clause addresses who must sign the certification, the exact certification language that must be used, and the consequences of failing to submit a proper signed certificate. In practice, this clause is a key control in the indirect rate settlement process because it places senior management accountability behind the accuracy and allowability of the costs included in the proposal. It is intended to help the Government rely on the contractor’s representation that the proposal excludes expressly unallowable costs and that all included costs comply with the FAR cost principles and any applicable supplements. The clause also gives the Contracting Officer leverage to establish final indirect costs unilaterally if the contractor does not provide the required certification. For contractors, this means final indirect rate proposals must be prepared, reviewed, and signed with the same seriousness as other formal compliance submissions; for contracting officers, it provides a basis to reject incomplete submissions and protect the Government’s interests during rate negotiations.
Key Rules
Certify final rate proposals
The contractor must certify any proposal to establish or modify final indirect cost rates. This applies to the submission used to settle final indirect rates, not just to informal supporting schedules or draft calculations.
Use prescribed certificate format
The contractor must use the exact certification format in the clause. The required language is specific and must state that the signer reviewed the proposal and believes the costs are allowable and that no expressly unallowable costs are included.
Senior official must sign
The certificate must be signed by an individual at a level no lower than a vice president or chief financial officer of the business segment submitting the proposal. The clause is designed to ensure the certification comes from a senior official with authority and responsibility.
Allowability representation required
The certifying official must represent that all costs in the proposal are allowable under the FAR cost principles and applicable supplements. This is a substantive statement about compliance, not merely a procedural signature.
Expressly unallowable costs prohibited
The certification must also state that the proposal does not include any costs expressly unallowable under applicable cost principles. This is a separate and important assurance because expressly unallowable costs can trigger penalties and disputes.
Missing certificate has consequences
If the contractor fails to submit a signed certificate, the Contracting Officer may establish final indirect costs unilaterally. That means the contractor risks losing the opportunity to negotiate rates based on its own certified proposal.
Responsibilities
Contractor
Prepare and submit a proposal to establish or modify final indirect cost rates, ensure the proposal is complete and accurate, use the exact certification language required by the clause, and obtain a signature from an authorized senior official at the required organizational level.
Certifying Official
Review the final indirect cost proposal, confirm to the best of their knowledge and belief that the included costs are allowable and that no expressly unallowable costs are included, and sign and date the certificate on behalf of the contractor organization.
Contracting Officer
Review whether the contractor has submitted the required signed certification, use the certification requirement as part of the final indirect rate settlement process, and if the contractor fails to provide a proper certificate, establish final indirect costs unilaterally as permitted by the clause.
Agency/Defense Audit or Rate-Setting Personnel
Support review of the contractor’s indirect cost proposal and certification, evaluate whether the proposal appears compliant with applicable cost principles, and assist in negotiating or settling final indirect rates based on the certified submission.
Practical Implications
Contractors should treat the final indirect cost proposal as a formal compliance certification, not just an accounting package. The senior signer should have enough visibility into the proposal to make a defensible statement about allowability and unallowable costs.
A common pitfall is using the wrong signer or an insufficiently senior official. If the signature does not come from at least a vice president or CFO of the relevant business segment, the certification may be defective.
Another frequent issue is submitting a proposal without the exact required certification language or with altered wording. Because the clause prescribes the format, deviations can create acceptance and enforceability problems.
Failure to certify can materially disadvantage the contractor because the Contracting Officer may set final indirect rates unilaterally. That can reduce the contractor’s ability to influence the outcome of rate negotiations.
The clause also underscores the importance of screening for expressly unallowable costs before submission. Contractors should have internal review controls to identify and remove such costs, since certification increases the risk of disputes, questioned costs, and potential penalties if the submission is inaccurate.
Official Regulatory Text
As prescribed in 42.703-2 (f) , insert the following clause: Certification of Final Indirect Costs (Jan 1997) (a) The Contractor shall- (1) Certify any proposal to establish or modify final indirect cost rates; (2) Use the format in paragraph (c) of this clause to certify; and (3) Have the certificate signed by an individual of the Contractor’s organization at a level no lower than a vice president or chief financial officer of the business segment of the Contractor that submits the proposal. (b) Failure by the Contractor to submit a signed certificate, as described in this clause, may result in final indirect costs at rates unilaterally established by the Contracting Officer. (c) The certificate of final indirect costs shall read as follows: Certificate of Final Indirect Costs This is to certify that I have reviewed this proposal to establish final indirect cost rates and to the best of my knowledge and belief: 1. All costs included in this proposal (identify proposal and date) to establish final indirect cost rates for (identify period covered by rate) are allowable in accordance with the cost principles of the Federal Acquisition Regulation (FAR) and its supplements applicable to the contracts to which the final indirect cost rates will apply; and 2. This proposal does not include any costs which are expressly unallowable under applicable cost principles of the FAR or its supplements. Firm: _________________________________________ Signature: _____________________________________ Name of Certifying Official: ______________________ Title: _________________________________________ Date of Execution: ______________________________ (End of clause)