Indefinite-Delivery Β· FAR 16.503

Requirements Contract

What It Is

A requirements contract is an indefinite-delivery contract under which the government agrees to fill all of its actual purchase requirements for designated supplies or services from a single contractor during a defined period, placing orders as needs arise. Unlike an IDIQ, there is no firm minimum-and-maximum quantity β€” the obligation is that the government will buy its real requirements (whatever they turn out to be) from that contractor. The solicitation gives a realistic estimated quantity for bidding, but the actual total can be higher or lower.

Who Carries the Risk

The contractor is exposed to demand uncertainty β€” actual orders may run well above or below the estimate β€” but is assured of all of the government's real requirements for the item during the period.

When the Government Uses It

  • Recurring needs for specific supplies or services where the government cannot fix the quantity but can commit to buying all of it from one source.
  • Items the government uses continuously but in amounts that vary with operational demand.
  • When a single source can efficiently meet the full (if uncertain) demand over the period.

Key Features

FeatureWhat It Means
All actual requirementsThe government commits to buy its real requirements for the covered items from this contractor β€” not a fixed quantity.
Estimated quantityThe solicitation provides a realistic estimate for bidding, but the true total depends on actual demand.
OrdersWork is ordered via delivery/task orders as needs arise during the contract period.
Single sourceDistinct from IDIQ: a requirements contract directs the government's whole demand to one contractor rather than a guaranteed min/max.

What It Means for an SDVOSB

A requirements contract can be attractive for an SDVOSB because you capture the agency's entire demand for the item β€” but the demand is uncertain, so model your capacity and price for a realistic range, not just the estimate. Limitations on subcontracting apply by the work category and the order's pricing type under 13 CFR 125.6; plan self-performance against a realistic order volume.

Common Pitfalls

  • Bidding to the estimated quantity as if it were guaranteed β€” actual demand can run materially higher or lower.
  • Under-sizing capacity for a demand spike you are now obligated to fill.
  • Confusing it with an IDIQ β€” there is no guaranteed minimum/maximum, just the government's real requirements.

Run the Numbers

Limitations on Subcontracting Calculator β†’

Frequently Asked

What is the difference between a requirements contract and an IDIQ?

An IDIQ guarantees a minimum and caps at a maximum quantity, and the government may use multiple awardees. A requirements contract has no firm min/max β€” the government commits to buy all of its actual requirements for the covered items from one contractor during the period. The solicitation gives an estimated quantity for bidding, but the real total tracks actual demand.

Is the estimated quantity in a requirements contract guaranteed?

No. The estimate is a realistic, good-faith projection to help you bid, but the government's obligation is to buy its actual requirements β€” which can come in above or below the estimate. Price and size your capacity for a range of demand, not just the point estimate.

Primary Sources

Plain-English reference, not legal advice. Contract-type selection is a contracting-officer judgment and the FAR is periodically amended β€” always confirm the contract type, clauses, and how the limitations on subcontracting are measured against the solicitation and your contracting officer before relying on this.

Last updated Update cadence: Quarterly, plus on FAR amendment
Change log (1)
  1. LaunchedPublished the federal contract types reference covering the pricing and delivery arrangements an SDVOSB encounters on set-asides β€” firm-fixed-price (FFP), fixed-price with economic price adjustment (FP-EPA), fixed-price incentive (FPIF), the cost-reimbursement family (CPFF, CPIF, CPAF), time-and-materials and labor-hour, the indefinite-delivery vehicles (IDIQ, requirements, definite-quantity), and letter contracts β€” each with a who-carries-the-risk callout, a key-features table, an SDVOSB-specific angle tying the type to the limitations on subcontracting, common pitfalls, FAQPage, Article, Dataset, and BreadcrumbList structured data, primary-source FAR Part 16 citations, and cross-links into the glossary, regulation explainers, how-to guides, FAQ, and the limitations-on-subcontracting and price-to-win calculators.

Related Contract Types

The Rules Behind It

13 CFR § 125.6 — Limitations on Subcontracting→

Put It Into Practice

How to Find and Bid SDVOSB Set-Aside Contracts→

Terms Used on This Page

IDIQTask OrderLimitations on Subcontracting

In the FAQ Knowledge Base

What types of contracts do SDVOSBs typically perform?β†’
How do SDVOSB task orders work under IDIQ contracts?β†’
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