NASHUA, N.H. — A defense contractor announces that it has received a contract worth up to hundreds of millions of dollars. While the number makes the headline, it does not necessarily represent how much work the company has received. The contract may instead establish a framework for orders that the government can place over several years.

An indefinite delivery, indefinite quantity (IDIQ) contract is one way federal agencies buy supplies or services when they expect an ongoing need but do not know exactly how much they will require or when they will require it. The contract establishes the general scope, ordering period and limits before individual requirements become clear. That makes IDIQs common across government contracting, including defense programs where requirements and delivery schedules can change over time.

What does IDIQ mean?

The two parts of the name refer to different aspects of the contract. Indefinite delivery means the government does not establish every delivery schedule when it awards the contract. Indefinite quantity means it does not know the exact amount of a product or service it will need beyond the limits established in the agreement.

The uncertainty does not make the contract open-ended. An IDIQ covers a defined period and establishes minimum and maximum quantities, which can also be expressed as dollar values. The contract also describes the general scope of the supplies or services the government may order.

For example, a military organization may know it will need counter-drone equipment during the next several years without knowing exactly how many systems it will need, which locations will receive them or when each requirement will emerge.

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Does the maximum value mean the company received that much money?

No. This is one of the most important distinctions when reading an IDIQ contract announcement. An IDIQ includes a maximum quantity or dollar value, often called the contract ceiling. That ceiling shows how much the government can order under the contract, but it does not mean the government has ordered that amount on the day it awards the IDIQ.

Federal acquisition rules require an IDIQ to include a minimum quantity that the government agrees to order and the contractor agrees to provide. If the government places additional orders, the contractor must fulfill them within the terms of the contract up to the established maximum.

So, a company receiving an IDIQ with a $500 million ceiling has not received $500 million worth of work. The actual value can grow as the government places orders during the contract period, but it cannot exceed the contract's maximum without further contractual action.

How does the government buy something under an IDIQ?

After establishing the IDIQ, the government places individual orders when it has a specific requirement. For supplies, these are generally called delivery orders. For services, they’re called task orders. Federal acquisition rules define delivery-order contracts around the delivery of supplies and task-order contracts around the performance of services.

An individual order gets more specific than the broader IDIQ. It describes the supplies to be delivered or services to be performed so the government can establish the cost or price of that particular requirement. The order also has to fall within the scope, ordering period and maximum value of the underlying contract.

Why use an IDIQ instead of one large contract?

Sometimes the government can determine exactly what it needs before awarding a contract. It might need a specific number of components delivered on a known schedule. Other requirements are harder to predict. For example, demand can change or equipment may need to go to different locations. An agency may also need additional quantities at different points during a multiyear program.

An IDIQ gives the government flexibility in both quantity and delivery scheduling and lets an agency order supplies or services after specific requirements develop. The Federal Acquisition Regulation identifies those as advantages of indefinite-quantity contracting.

The government still establishes boundaries at the outset. It simply does not have to determine every individual purchase before creating the contracting vehicle.

Can more than one company receive an IDIQ?

Yes. An agency can establish an IDIQ with one contractor or make multiple awards under the same solicitation.

Under a multiple-award IDIQ, several contractors may become eligible to compete for later orders. Federal acquisition rules generally establish a preference for multiple awards of indefinite-quantity contracts when practicable, with procedures governing how contractors receive opportunities to compete for individual orders.

Winning a spot on a multiple-award IDIQ therefore does not necessarily mean a contractor has won every future requirement covered by that vehicle. It may mean the contractor has become eligible to compete for orders as the government issues them.

Each part of the term refers to something the government has not determined at the time of award.

What does an IDIQ award tell you?

An IDIQ award tells you that the government has established a contracting relationship it can use for certain supplies or services during a defined period, but it does not tell you how much the government ultimately will buy.

For contractors, an IDIQ can create a path to future orders. For agencies, it provides a way to respond to recurring requirements without trying to predict every quantity, delivery date and location years in advance.