Cost contracts — Us Code Code § 3905

Us Code Code § 3905 — Cost contracts. Reproduced from the official United States Code, with a citation summary, verification link, and related provisions.

§ 3905. Cost contracts

(a) Cost-Plus-A-Percentage-Of-Cost Contracts Disallowed.—The cost-plus-a-percentage-of-cost system of contracting shall not be used.

(b) Cost-Plus-A-Fixed-Fee Contracts.—

(1) In general.—Except as provided in paragraphs (2) and (3), the fee in a cost-plus-a-fixed-fee contract shall not exceed 10 percent of the estimated cost of the contract, not including the fee, as determined by the agency head at the time of entering into the contract.

(2) Experimental, developmental, or research work.—The fee in a cost-plus-a-fixed-fee contract for experimental, developmental, or research work shall not exceed 15 percent of the estimated cost of the contract, not including the fee.

(3) Architectural or engineering services.—The fee in a cost-plus-a-fixed-fee contract for architectural or engineering services relating to any public works or utility project may include the contractor's costs and shall not exceed 6 percent of the estimated cost, not including the fee, as determined by the agency head at the time of entering into the contract, of the project to which the fee applies.


(c) Notification.—All cost and cost-plus-a-fixed-fee contracts shall provide for advance notification by the contractor to the procuring agency of any subcontract on a cost-plus-a-fixed-fee basis and of any fixed-price subcontract or purchase order which exceeds in dollar amount either the simplified acquisition threshold or 5 percent of the total estimated cost of the prime contract.

(d) Right To Audit.—A procuring agency, through any authorized representative thereof, has the right to inspect the plans and to audit the books and records of a prime contractor or subcontractor engaged in the performance of a cost or cost-plus-a-fixed-fee contract.

(Pub. L. 111–350, §3, Jan. 4, 2011, 124 Stat. 3776.)

Historical and Revision Notes
Revised

Section

Source (U.S. Code)Source (Statutes at Large)
3905(a) 41:254(b) (1st sentence words before 1st comma). June 30, 1949, ch. 288, title III, §304(b), 63 Stat. 395; July 12, 1952, ch. 703, §1(m), 66 Stat. 594; Pub. L. 103–355, title I, §1071, title IV, §4402(c), title X, §10005(e), Oct. 13, 1994, 108 Stat. 3270, 3349, 3408.
3905(b) 41:254(b) (1st sentence words after 1st comma).
3905(c) 41:254(b) (last sentence words before semicolon).
3905(d) 41:254(b) (last sentence words after semicolon).

About This Section

41 U.S.C. § 3905 is part of Title 41 of the United States Code. The United States Code is the official codification of federal statutes maintained by the Office of the Law Revision Counsel of the U.S. House of Representatives. Congress amends the Code through new public laws, which are eventually incorporated into the relevant title.

This section may be cited in legal writing as 41 U.S.C. § 3905. For the most current official text, including any recent amendments, use the official source links below. Do not rely on this page as the sole authority for legal citation or litigation.

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Sources

Source: official Us Code text · Last verified 2026-08-27

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It addresses "Cost contracts". Read the section together with the surrounding provisions listed under "Nearby provisions" for the full picture.

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