What type of recurring requirements agreement includes a description of the supplies or services to be ordered?

A recurring requirements agreement that includes a description of the supplies or services to be ordered is known as a "Blanket Purchase Agreement" (BPA). BPAs are used to streamline the procurement process by allowing government agencies or organizations to make repeated purchases of specific items or services over a set period, without the need for individual purchase orders for each transaction. This type of agreement outlines the terms, conditions, and pricing, facilitating efficient and timely procurement.