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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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55 sections with “purchase order modification”: the first 40

  • FAR 13.302-3 Obtaining contractor acceptance and modifying purchase orders.
    … performance, the contracting officer shall require written (see 2.101) acceptance of the purchase order by the contractor. (b) Each purchase order modification shall identify the order it modifies and shall contain an appropriate modifica…
  • DFARS 213.302-3 Obtaining contractor acceptance and modifying purchase orders.
    (1) Require written acceptance of purchase orders for classified acquisitions. (2) See PGI 213.302-3 for guidance on the use of unilateral modifications. (3) A supplemental agreement converts a unilateral purchase order to a bilateral agr…
  • FAR 16.505 Ordering.
    …ders shall follow the procedures in 5.705. (12) When using the Governmentwide commercial purchase card as a method of payment, orders at or below the micro-purchase threshold are exempt from verification in the System for Award Management …
  • DFARS 213.7002 Purchase orders.
    The contracting officer need not obtain a contractor's written acceptance of a purchase order or modification of a purchase order for an acquisition under the 8(a) Program pursuant to 219.804-2(2).
  • FAR 13.302-5 Clauses.
    (a) Each purchase order (and each purchase order modification (see 13.302-3)) shall incorporate all clauses prescribed for the particular acquisition. (b) The contracting officer shall insert the clause at 52.213-2, Invoices, in purchase o…
  • FAR 2.101 Definitions.
    …or services (including construction) by and for the use of the Federal Government through purchase or lease, whether the supplies or services are already in existence or must be created, developed, demonstrated, and evaluated. Acquisition b…
  • FAR 4.606 Reporting Data.
    …PDS. (1) As a minimum, agencies must report the following contract actions over the micro-purchase threshold, regardless of solicitation process used, and agencies must report any modification to these contract actions that change previousl…
  • FAR 4.1602 Identifying the PIID and supplementary PIID.
    …supplementary PIID, in conjunction with the PIID for the solicitation. (2) Contracts and purchase orders. Identify the PIID for contracts and purchase orders. (3) Delivery and task orders. For delivery and task orders placed by an agency …
  • FAR 13.307 Forms.
    …49 and OF 347, Order for Supplies or Services, are multipurpose forms used for negotiated purchases of supplies or services, delivery or task orders, inspection and receiving reports, and invoices. An agency form/automated format also may b…
  • FAR 42.1204 Applicability of novation agreements.
    …nnecessary when there is a change in the ownership of a contractor as a result of a stock purchase, with no legal change in the contracting party, and when that contracting party remains in control of the assets and is the party performing …
  • FAR 42.1205 Agreement to recognize contractor's change of name.
    … applicable law and showing the effective date. (3) A list of all affected contracts and purchase orders remaining unsettled between the contractor and the Government, showing for each the contract number and type, and name and address of …
  • FAR 52.245-1 Government Property.
    …ts or Cost-Reimbursable line items under Fixed-Price contracts. (i) Title to all property purchased by the Contractor for which the Contractor is entitled to be reimbursed as a direct item of cost under this contract shall pass to and vest …
  • FAR 53.213 Simplified acquisition procedures (SF's 18, 30, 44, 1165, and 1449, and OF's 336, 347, and 348).
    …citation/Modification of Contract. SF 30, prescribed in 53.243, may be used for modifying purchase orders, as specified in 13.307(c)(3). (c) SF 44 (Rev. 10/83), Purchase Order Invoice Voucher. SF 44 is prescribed for use in simplified acqu…
  • DFARS 202.101 Definitions.
    …r and a foreign government or international organization as an inducement or condition to purchase supplies or services pursuant to a foreign military sale (FMS). There are two types of offsets: Direct offsets and indirect offsets. (1) A d…
  • DFARS 252.245-7005 Management and Reporting of Government Property.
    …28-M, edition in effect as of the date of this contract. If the property is available for purchase, the plant clearance officer may authorize the purchaser to demilitarize, mutilate, or destroy as a condition of sale provided the property i…
  • FAR 15.404-4 Profit.
    …the contracting officer shall exclude from the pre-negotiation cost objective amounts the purchase cost of contractor-acquired property that is categorized as equipment, as defined in FAR 45.101, and where such equipment is to be charged di…
  • FAR 15.408 Solicitation provisions and contract clauses.
    …hing the source and reasonableness of price for those acquisitions (such as subcontracts, purchase orders, material order, etc.) exceeding, or expected to exceed, the appropriate threshold set forth at FAR 15.403-4 priced on the basis of ad…
  • FAR 52.219-9 Small Business Subcontracting Plan.
    …ing warranty periods (negotiated up front with the product); utilities and other services purchased from a municipality or an entity solely authorized by the municipality to provide those services in a particular geographical region; and ph…
  • FAR 53.243 Contract modifications (SF 30).
    … is prescribed for use in amending invitation for bids, as specified in 14.208; modifying purchase and delivery orders, as specified in 13.302-3; and modifying contracts, as specified in 42.1203(h), 43.301, 49.602-5, and elsewhere in this c…
  • FAR 43.301 Use of forms.
    …f petroleum as a result of economic price adjustment, (ii) termination notices, and (iii) purchase order modifications as specified in 13.302-3. (3) If it is anticipated that a change will result in a price change, the estimated amount of …
  • FAR 52.212-4 Contract Terms and Conditions—Commercial Products and Commercial Services.
    …7). However, when a third party makes payment (e.g., use of the Governmentwide commercial purchase card), the Contractor may not assign its rights to receive payment under this contract. (c) Changes. Changes in the terms and conditions of …
  • FAR 52.222-54 Employment Eligibility Verification.
    …s for performance of a prime contract or a subcontract. It includes but is not limited to purchase orders, and changes and modifications to purchase orders. Subcontractor means any supplier, distributor, vendor, or firm that furnishes supp…
  • DFARS 252.228-7001 Ground and Flight Risk.
    …iums paid to insure the Contractor's assumption of risk, deductibles associated with such purchased insurance, etc.) to mitigate its risk are unallowable costs; and (iii) The liability provisions of the clause at FAR 52.245-1, Government P…
  • FAR 3.901 Definitions.
    …s for performance of a prime contract or a subcontract. It includes but is not limited to purchase orders, and changes and modifications to purchase orders. Subcontractor means any supplier, distributor, vendor, or firm (including a consul…
  • FAR 4.601 Definitions.
    …ed in this subpart— Contract action means any oral or written action that results in the purchase, rent, or lease of supplies or equipment, services, or construction using appropriated dollars over the micro-purchase threshold, or modifica…
  • FAR 4.803 Contents of contract files.
    …y contained, if applicable, in contract files: (a) Contracting office contract file. (1) Purchase request, acquisition planning information, and other presolicitation documents. (2) Justifications and approvals, determinations and finding…
  • FAR 19.301-2 Rerepresentation by a contractor that represented its status as a small business concern.
    …no longer include the value of options exercised, modifications issued, orders issued, or purchases made under BPAs on that contract in its small business prime contracting goal achievements. When a contractor's rerepresentation for a contr…
  • FAR 22.1801 Definitions.
    …s for performance of a prime contract or a subcontract. It includes but is not limited to purchase orders, and changes and modifications to purchase orders. Subcontractor means any supplier, distributor, vendor, or firm that furnishes supp…
  • FAR 41.601 Utility services forms.
    (a) If acquiring utility services under other than an areawide contract, a purchase order, or an interagency agreement, the Standard Form (SF) 33, Solicitation, Offer and Award; SF 26, Award/Contract; or SF 1447, Solicitation/Contract, shal…
  • FAR 42.302 Contract administration functions.
    … changes in packaging subcontractors or contract shipping points. (63) Cancel unilateral purchase orders when notified of nonacceptance by the contractor. The CAO shall notify the contracting officer when the purchase order is canceled. (…
  • FAR 44.101 Definitions.
    …s for performance of a prime contract or a subcontract. It includes but is not limited to purchase orders, and changes and modifications to purchase orders. Subcontractor means any supplier, distributor, vendor, or firm that furnishes supp…
  • FAR 52.203-19 Prohibition on Requiring Certain Internal Confidentiality Agreements or Statements.
    …s for performance of a prime contract or a subcontract. It includes but is not limited to purchase orders, and changes and modifications to purchase orders. Subcontractor means any supplier, distributor, vendor, or firm (including a consul…
  • FAR 52.215-23 Limitations on Pass-Through Charges.
    …vices for performance of the contract or a subcontract. It includes but is not limited to purchase orders, and changes and modifications to purchase orders. Subcontractor, as defined in FAR 44.101, means any supplier, distributor, vendor, …
  • FAR 52.232-16 Progress Payments.
    …yment purposes. (2) The amount of financing and other payments for supplies and services purchased directly for the contract are limited to the amounts that have been paid by cash, check, or other forms of payment, or that are determined d…
  • FAR 52.244-2 Subcontracts.
    …r performance of the prime contract or a subcontract. It includes, but is not limited to, purchase orders, and changes and modifications to purchase orders. (b) When this clause is included in a fixed-price type contract, consent to subcon…
  • FAR 4.1002 Applicability.
    …racts (MACs), Federal Supply Schedule (FSS) contracts, indefinite-delivery contracts, and purchase orders. (c) Agreements that include pre-priced supplies or services. (d) Task and delivery orders.
  • FAR 15.404-1 Proposal analysis techniques.
    …nical assistance in evaluating pricing related to items that are “similar to” items being purchased, or commercial products or commercial services that are “of a type”, or requiring minor modifications for commercial products, to ascertain …
  • FAR 15.404-3 Subcontract pricing considerations.
    … shall obtain and analyze certified cost or pricing data before awarding any subcontract, purchase order, or modification expected to exceed the certified cost or pricing data threshold, unless an exception in 15.403-1(b) applies to that ac…
  • FAR 16.503 Requirements contracts.
    (a) Description. A requirements contract provides for filling all actual purchase requirements of designated Government activities for supplies or services during a specified contract period (from one contractor), with deliveries or perform…
  • FAR 22.605 Rulings and interpretations of the statute.
    …ties. (5) Indefinite-delivery contracts, including basic ordering agreements and blanket purchase agreements, are subject to the statute unless it can be determined in advance that the aggregate amount of all orders estimated to be placed …

FAR (chapter 1)

DFARS (chapter 2, Defense)

Source: eCFR, 48 CFR chapters 1 and 2 (GPO GovInfo bulk data) ↗. Rule changes in progress: FAR, DFARS. Terms: glossary.