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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20 sections with “commencement of work”
- FAR 22.1014 Delay over 60 days in bid opening or commencement of work.If a wage determination was obtained through the e98 process, and bid opening, or commencement of work under a negotiated contract has been delayed, for whatever reason, more than 60 days from the date indicated on the previously submitted …
- FAR 52.216-23 Execution and Commencement of Work.…ted, except that it may be omitted from letter contracts awarded on SF 26: Execution and Commencement of Work (APR 1984) The Contractor shall indicate acceptance of this letter contract by signing three copies of the contract and returnin…
- FAR 52.211-10 Commencement, Prosecution, and Completion of Work.…accommodate the issuance of orders under indefinite-delivery contracts for construction. Commencement, Prosecution, and Completion of Work (APR 1984) The Contractor shall be required to (a) commence work under this contract within __ [Con…
- FAR 36.213-4 Notice of award.…st be promptly executed and returned to the contracting officer; (e) Specify the date of commencement of work, or advise that a notice to proceed will be issued.
- DFARS 252.222-7003 Permit from Italian Inspectorate of Labor.… clause: Permit From Italian Inspectorate of Labor (JUN 1997) Prior to the date set for commencement of work and services under this contract, the Contractor shall obtain the prescribed permit from the Inspectorate of Labor having jurisdi…
- FAR 52.237-7 Indemnification and Medical Liability Insurance.…ill perform under this contract shall be provided to the Contracting Officer prior to the commencement of services under this contract. If the insurance is on a claims-made basis and evidence of an extended reporting endorsement is not prov…
- FAR 22.1905 Enforcement of Executive Order Minimum Wage Requirements.…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 necessary, its autho…
- FAR 16.603-4 Contract clauses.…racts when a letter contract is contemplated: (1) The clause at 52.216-23, Execution and Commencement of Work, except that this clause may be omitted from letter contracts awarded on SF 26; (2) The clause at 52.216-24, Limitation of Gover…
- FAR 22.406-1 Policy.…hat shall include— (1) Ensuring that contractors and subcontractors are informed, before commencement of work, of their obligations under the labor standards clauses of the contract; (2) Adequate payroll reviews, on-site inspections, and …
- DFARS 252.228-7006 Compliance with Spanish Laws and Insurance.…. (d) The Contractor agrees to represent in writing to the Contracting Officer, prior to commencement of work and not later than 15 days after the date of the Notice to Proceed, that the Contractor has obtained the required types of insura…
- FAR 11.404 Contract clauses.…ate III. (b) Construction. The contracting officer shall insert the clause at 52.211-10, Commencement, Prosecution, and Completion of Work, in solicitations and contracts when a fixed-price construction contract is contemplated. The clause…
- FAR 12.403 Termination.…able Delay” requires contractors notify the contracting officer as soon as possible after commencement of any excusable delay. In most situations, this requirement should eliminate the need for a show cause notice prior to terminating a con…
- FAR 22.1012-1 Prevailing wage determinations.…odification, any revision received by the contracting agency not less than 10 days before commencement of the work shall be effective. (d) If the contracting officer has submitted an e98 to the Department of Labor requesting a prevailing w…
- FAR 22.1012-2 Wage determinations based on collective bargaining agreements.…anged collective bargaining agreement received by the agency not less than 10 days before commencement of the work shall be effective for purposes of the successor contract under 41 U.S.C. 6707(c). (c) The limitations in paragraphs (a) and…
- FAR 52.212-4 Contract Terms and Conditions—Commercial Products and Commercial Services.… notify the Contracting Officer in writing as soon as it is reasonably possible after the commencement of any excusable delay, setting forth the full particulars in connection therewith, shall remedy such occurrence with all reasonable disp…
- FAR 52.213-4 Terms and Conditions—Simplified Acquisitions (Other Than Commercial Products and Commercial Services).… notify the Contracting Officer in writing as soon as it is reasonably possible after the commencement of any excusable delay, setting forth the full particulars in connection therewith, shall remedy such occurrence with all reasonable disp…
- FAR 52.222-41 Service Contract Labor Standards.…yee. The Contracting Officer shall turn over such list to the successor Contractor at the commencement of the succeeding contract. (o) Rulings and Interpretations. Rulings and interpretations of the Service Contract Labor Standards statute…
- FAR 52.232-12 Advance Payments.…ement, or liquidation. (iv) The service of any writ of attachment, levy of execution, or commencement of garnishment proceedings concerning the special account. (v) The commission of an act of bankruptcy. (2) If any of the events describ…
- FAR 52.245-1 Government Property.… the Government upon— (A) Issuance of the property for use in contract performance; (B) Commencement of processing of the property for use in contract performance; or (C) Reimbursement of the cost of the property by the Government, which…
- DFARS 252.217-7003 Changes.…d specifications; (2) Work itemized; (3) Place of performance of the work; (4) Time of commencement or completion of the work; and (5) Any other requirement of the job order. (b) If a change causes an increase or decrease in the cost o…
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.