FAR 4.1004—Establishing subline items.
Plain-English Summary
FAR 4.1004 explains when and how contracting activities may use subline items within a contract line item. It covers the difference between deliverable subline items and informational subline items, the purposes for which subline items may be used, and the structural rules that apply when a line item contains subline items. The section also ties subline items to performance tracking, deliverables, payment, and contract funds accounting, showing that they are not just a formatting tool but a management and administration tool. In practice, this means contracting officers must decide whether separate identification is needed at the line-item level or whether subline items are a better fit, while ensuring the contract remains internally consistent. The rule also limits what can be placed under a line item, requires all subline items under a line item to share the same contract type as the parent line item, and distinguishes between deliverable subline items that follow the characteristics in 4.1003 and informational subline items that do not. For contractors, this section matters because it affects how items are priced, tracked, shipped, invoiced, and administered, and because improper structuring can create confusion in payment, accounting, and performance reporting.
Key Rules
Use subline items for management
Subline items may be used to track performance, deliverables, payment, contract funds accounting, or other management purposes. They are a tool for organizing contract administration, not a mandatory structure in every contract.
Deliverable vs. informational
A subline item may be either deliverable or informational. Deliverable subline items are subject to the characteristics in FAR 4.1003, while informational subline items are not.
Common information only at line level
If a line item has subline items, the parent line item may contain only information common to all of those subline items. Unique details should be placed at the subline-item level, not repeated in the parent line item.
Same contract type required
All subline items under a single line item must be the same contract type as the parent line item. A contracting activity cannot mix different contract types within one line item through subline items.
Deliverable subline item uses
Deliverable subline items may be used for related items that need separate identification, such as minor variations in size, color, accounting classification, delivery date, destination, or place/period of performance.
Collateral functions may be separate
Subline items may separately identify priced collateral functions tied to the primary product, such as packaging, handling, or transportation, when separate identification is useful.
Separate identification at shipment or performance
Subline items may be used for items that need to be separately identified when shipped or performed, even if they are related to the same overall line item.
Informational subline item placement
Informational subline items are for administrative purposes and identify parts of a line item that are integral to it, such as components of an assembly or kit. They must be placed in the line item description, not in the quantity or price fields.
Responsibilities
Contracting Officer
Decide whether subline items are appropriate for the acquisition, ensure the line-item structure is consistent with FAR requirements, keep the parent line item limited to information common to all subline items, and verify that all subline items under a line item share the same contract type.
Contracting Activity / Agency
Use informational subline items only for administrative purposes, structure line items and subline items to support tracking, payment, and funds accounting, and place informational subline items in the description field rather than quantity or price fields.
Contractor
Read and perform against the line-item and subline-item structure as written, ensure pricing, shipment, invoicing, and performance records align with the contract’s subline-item breakdown, and flag ambiguities that could affect delivery or payment.
Contract Specialists / Contract Administrators
Support proper drafting and administration of line items and subline items, maintain consistency in descriptions and accounting data, and ensure the structure supports performance tracking and payment processing.
Practical Implications
Subline items can reduce clutter and improve tracking when several related items are being bought, but they must be used carefully so the contract remains clear and administrable.
A common mistake is putting unique details in the parent line item instead of the subline item, which can create conflicts when different subline items have different delivery dates, destinations, or accounting classifications.
Another pitfall is mixing contract types under one line item; FAR 4.1004 does not allow that, so the structure must be checked before award and modification.
Informational subline items are easy to misuse because they are not priced or quantified like deliverables; they belong in the description and should not be treated as separate payable items.
Contractors should pay close attention to whether a subline item is deliverable or informational, because that affects how they invoice, ship, and document performance.
Official Regulatory Text
Subline items may be used to facilitate tracking of performance, deliverables, payment, and contract funds accounting or for other management purposes. Subline items may be either deliverable or informational. The list of characteristics at 4.1003 applies to deliverable subline items, but it is not applicable to informational subline items. A line item with subline items shall contain only that information that is common to all subline items thereunder. All subline items under one line item shall be the same contract type as the line item. (a) Deliverable subline items . Deliverable subline items may be used for several related items that require separate identification. For example, instead of establishing multiple separate line items, subline items may be established for- (1) Items that are basically the same, except for minor variations such as– (i) Size or color; (ii) Accounting classification, but see also 4.1005-1 (a)(4); or (iii) Date of delivery, destination, or period or place of performance; (2) Separately priced collateral functions that relate to the primary product, such as packaging and handling, or transportation; or (3) Items to be separately identified at the time of shipment or performance. (b) Informational subline items . (1) Informational subline items may be used by agencies for administrative purposes. This type of subline item identifies information that relates directly to the line item and is an integral part of it ( e.g. , parts of an assembly or parts of a kit). (2) Position informational subline items within the line item description, not in the quantity or price fields.