# Indefinite Delivery Indefinite Quantity Contract **Aliases:** IDIQ **Entity class:** Federal acquisition mechanism ## Definition An **Indefinite Delivery, Indefinite Quantity (IDIQ) contract** establishes a contractual framework for an uncertain quantity of supplies or services during a fixed period, with work ordered through later task or delivery orders. A multiple-award IDIQ can preserve competition among several qualified vendors. ## Relationships - **used for:** multi-vendor acquisition in programs including the [[wiki/War Data Platform|War Data Platform]]. - **supports:** [[wiki/Open DAGIR|Open DAGIR]]'s effort to avoid single-vendor bottlenecks. - **federal acquisition context:** Department of Defense procurement. ## Sources / Provenance - [Federal Acquisition Regulation — Subpart 16.5](https://www.acquisition.gov/far/subpart-16.5)