Node A6 · Acronym decoder
IOC
Initial Operational Capability
What it actually means
The declared point where the first increment of a capability is fielded and usable by trained operators with support in place — not the whole buy, but enough to matter operationally. Programs define IOC criteria years in advance, and the definition's precision matters: vague IOC criteria get declared; precise ones get met.
Where you'll meet it
Program baselines, fielding plans, and congressional reporting.