Initial operating capability
Initial operating capability or Initial operational capability (IOC) is the state achieved when a capability is available in its minimum usefully deployable form. The term is often used in government or military procurement.
The United States Department of Defense chooses to use the term Initial Operational Capability (versus initial "operating" capability) when referring to IOC. For a U.S. Department of Defense military acquisition, IOC includes operating the training and maintaining parts of the overall system per DOTMLPF, and is defined as 'In general, attained when some units and/or organizations in the force structure scheduled to receive a system have received it and have the ability to employ and maintain it. The specifics for any particular system IOC are defined in that system’s Capability Development Document (CDD) and Capability Production Document (CPD).'