48 CFR · Federal Acquisition Regulation and Defense supplement
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The codified text (eCFR, as of 2026-10-02). Under the Revolutionary FAR Overhaul ↗, agencies follow class deviations with new text for many parts while the formal rules go through the Federal Register: check the solicitation and your contract's clauses, which rule.
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15 sections with “retroactive change”
- FAR 30.603-2 Unilateral and desirable changes.…g practice consistently and process it as a noncompliance in accordance with 30.605. (d) Retroactive changes. (1) If a contractor requests that a unilateral change be retroactive, the contractor shall submit supporting rationale. (2) The …
- DFARS 252.247-7002 Revision of prices.…fect for the balance of the contract, and the Contractor shall continue performance. (g) Retroactive changes in wages or working conditions. (1) In the event of a retroactive wage adjustment, the Contractor or the Contracting Officer may r…
- FAR 16.703 Basic ordering agreements.… not by individual orders issued under it. Modifying a basic ordering agreement shall not retroactively affect orders previously issued under it. (d) Orders. A contracting officer representing any Government activity listed in a basic orde…
- FAR 22.1905 Enforcement of Executive Order Minimum Wage Requirements.…its significant violations of contract terms and conditions related to this subpart. (4) Retroactive inclusion of contract clause. If a contracting agency fails to include the contract clause in a contract to which E.O. 14026 applies, the …
- FAR 31.205-6 Compensation for personal services.…s must be for work performed by the employee in the current year and must not represent a retroactive adjustment of prior years' salaries or wages (but see paragraphs (g), (h), (j), (k), (m), and (o) of this subsection). (2) The total comp…
- FAR 52.219-9 Small Business Subcontracting Plan.…ies. When the goals in a subcontracting plan are amended, these goal changes do not apply retroactively. (j) Subcontracting plans are not required from subcontractors when the prime contract contains the clause at FAR 52.212-5, Contract Te…
- FAR 19.705-2 Determining the need for a subcontracting plan.…portunities not envisioned at the time of contract award. These goal changes do not apply retroactively. (f) If a subcontracting plan has been added to the contract due to a modification (see 19.702(a)(1)(iii)) or a size rerepresentation (…
- FAR 22.404-6 Modifications of wage determinations.…d, the contracting officer shall modify the contract to incorporate the wage modification retroactive to the date of award and equitably adjust the contract price for any increased or decreased cost of performance resulting from any changed…
- FAR 22.1015 Discovery of errors by the Department of Labor.…nistrator. If the contract is subject to 41 U.S.C. 6707(f), the Administrator may require retroactive application of that wage determination. The contracting officer shall equitably adjust the contract price to reflect any changed cost of p…
- FAR 22.2109 Enforcement of Executive Order 13706 paid sick leave requirements.…ntative of the Department of Labor, shall incorporate the contract clause in the contract retroactive to commencement of performance under the contract through the exercise of any and all authority that may be needed (including, where neces…
- FAR 42.704 Billing rates.…t new or changed conditions. (c) Once established, billing rates may be prospectively or retroactively revised by mutual agreement of the contracting officer (or cognizant Federal agency official) or auditor and the contractor at either pa…
- FAR 52.216-7 Allowable Cost and Payment.…illing rates— (1) Shall be the anticipated final rates; and (2) May be prospectively or retroactively revised by mutual agreement, at either party's request, to prevent substantial overpayment or underpayment. (f) Quick-closeout procedur…
- FAR 52.230-6 Administration of Cost Accounting Standards.…nd the Contractor) before implementation of the change. If the change includes a proposed retroactive date submit supporting rationale. (4) Submit a description of the change necessary to correct a failure to comply with an applicable CAS …
- FAR 52.232-16 Progress Payments.…whichever is less. The Contractor shall repay to the Government any amounts required by a retroactive price reduction, after computing liquidations and payments on past invoices at the reduced prices and adjusting the unliquidated progress …
- FAR 52.232-32 Performance-Based Payments.…mance-based payment balance(s), after adjustment of invoice payments and balances for any retroactive price adjustments. (e) Reduction or suspension of performance-based payments. The Contracting Officer may reduce or suspend performance-b…
FAR (chapter 1)
- Part 1 Federal Acquisition Regulations System 58 sections
- Part 2 Definitions of Words and Terms 3 sections
- Part 3 Improper Business Practices and Personal Conflicts of Interest 98 sections
- Part 4 Administrative and Information Matters 116 sections
- Part 5 Publicizing Contract Actions 34 sections
- Part 6 Competition Requirements 34 sections
- Part 7 Acquisition Planning 34 sections
- Part 8 Required Sources of Supplies and Services 67 sections
- Part 9 Contractor Qualifications 106 sections
- Part 10 Market Research 4 sections
- Part 11 Describing Agency Needs 33 sections
- Part 12 Acquisition of Commercial Products and Commercial Services 38 sections
- Part 13 Simplified Acquisition Procedures 49 sections
- Part 14 Sealed Bidding 82 sections
- Part 15 Contracting by Negotiation 81 sections
- Part 16 Types of Contracts 74 sections
- Part 17 Special Contracting Methods 50 sections
- Part 18 Emergency Acquisitions 34 sections
- Part 19 Small Business Programs 126 sections
- Part 22 Application of Labor Laws to Government Acquisitions 205 sections
- Part 23 Environment, Sustainable Acquisition, and Material Safety 38 sections
- Part 24 Protection of Privacy and Freedom of Information 10 sections
- Part 25 Foreign Acquisition 81 sections
- Part 26 Other Socioeconomic Programs 36 sections
- Part 27 Patents, Data, and Copyrights 59 sections
- Part 28 Bonds and Insurance 61 sections
- Part 29 Taxes 23 sections
- Part 30 Cost Accounting Standards Administration 30 sections
- Part 31 Contract Cost Principles and Procedures 87 sections
- Part 32 Contract Financing 175 sections
- Part 33 Protests, Disputes, and Appeals 23 sections
- Part 34 Major System Acquisition 20 sections
- Part 35 Research and Development Contracting 25 sections
- Part 36 Construction and Architect-engineer Contracts 81 sections
- Part 37 Service Contracting 46 sections
- Part 38 Federal Supply Schedule Contracting 3 sections
- Part 39 Acquisition of Information Technology 14 sections
- Part 40 Information Security and Supply Chain Security 12 sections
- Part 41 Acquisition of Utility Services 17 sections
- Part 42 Contract Administration and Audit Services 84 sections
- Part 43 Contract Modifications 14 sections
- Part 44 Subcontracting Policies and Procedures 24 sections
- Part 45 Government Property 33 sections
- Part 46 Quality Assurance 60 sections
- Part 47 Transportation 106 sections
- Part 48 Value Engineering 13 sections
- Part 49 Termination of Contracts 108 sections
- Part 50 Extraordinary Contractual Actions and the Safety Act 34 sections
- Part 51 Use of Government Sources by Contractors 15 sections
- Part 52 Solicitation Provisions and Contract Clauses 680 sections
- Part 53 Forms 61 sections
DFARS (chapter 2, Defense)
- Part 201 Federal Acquisition Regulations System 24 sections
- Part 202 Definitions of Words and Terms 1 sections
- Part 203 Improper Business Practices and Personal Conflicts of Interest 28 sections
- Part 204 Administrative and Information Matters 76 sections
- Part 205 Publicizing Contract Actions 11 sections
- Part 206 Competition Requirements 20 sections
- Part 207 Acquisition Planning 22 sections
- Part 208 Required Sources of Supplies and Services 31 sections
- Part 209 Contractor Qualifications 55 sections
- Part 210 Market Research 2 sections
- Part 211 Describing Agency Needs 22 sections
- Part 212 Acquisition of Commercial Products and Commercial Services 24 sections
- Part 213 Simplified Acquisition Procedures 23 sections
- Part 214 Sealed Bidding 14 sections
- Part 215 Contracting by Negotiation 66 sections
- Part 216 Types of Contracts 36 sections
- Part 217 Special Contracting Methods 64 sections
- Part 218 Emergency Acquisitions 7 sections
- Part 219 Small Business Programs 47 sections
- Part 222 Application of Labor Laws to Government Acquisitions 56 sections
- Part 223 Environment, Sustainable Acquisition, and Material Safety 34 sections
- Part 224 Protection of Privacy and Freedom of Information 2 sections
- Part 225 Foreign Acquisition 251 sections
- Part 226 Other Socioeconomic Programs 14 sections
- Part 227 Patents, Data, and Copyrights 99 sections
- Part 228 Bonds and Insurance 17 sections
- Part 229 Taxes 9 sections
- Part 230 Cost Accounting Standards Administration 2 sections
- Part 231 Contract Cost Principles and Procedures 13 sections
- Part 232 Contract Financing 74 sections
- Part 233 Protests, Disputes, and Appeals 8 sections
- Part 234 Major System Acquisition 13 sections
- Part 235 Research and Development Contracting 16 sections
- Part 236 Construction and Architect-engineer Contracts 25 sections
- Part 237 Service Contracting 67 sections
- Part 239 Acquisition of Information Technology 38 sections
- Part 241 Acquisition of Utility Services 8 sections
- Part 242 Contract Administration and Audit Services 40 sections
- Part 243 Contract Modifications 18 sections
- Part 244 Subcontracting Policies and Procedures 13 sections
- Part 245 Government Property 23 sections
- Part 246 Quality Assurance 39 sections
- Part 247 Transportation 27 sections
- Part 249 Termination of Contracts 14 sections
- Part 250 Extraordinary Contractual Actions and the Safety Act 16 sections
- Part 251 Use of Government Sources by Contractors 5 sections
- Part 252 Solicitation Provisions and Contract Clauses 405 sections
- Part 253 Forms 10 sections
- Part 270 Defense Contracting Programs 7 sections
Source: eCFR, 48 CFR chapters 1 and 2 (GPO GovInfo bulk data) ↗. Rule changes in progress: FAR, DFARS. Terms: glossary.