ACAT

Acquisition Category is a classification system used primarily by the Department of Defense to categorize acquisition programs based on their dollar value, complexity, and oversight requirements. ACAT levels determine the decision authority, documentation requirements, and milestone review processes that apply to each program.

ACAT I programs are major defense acquisition programs with the highest oversight levels, while ACAT II and III programs have progressively lower thresholds and delegated decision authorities. Understanding a program's ACAT designation helps contractors anticipate procurement timelines, documentation requirements, and decision-making processes that will govern contract awards and administration.