Acquisition Category (ACAT)

Acquisition Category (ACAT) is a classification used primarily by the Department of Defense to determine the level of oversight, review authority, and procedures required for an acquisition program.

What Is an Acquisition Category (ACAT)?

Acquisition Category, commonly referred to as ACAT, is a designation used within the Department of Defense acquisition system to determine the level of review, milestone decision authority, and documentation required for a program.

ACAT levels are generally based on total program cost, complexity, and strategic impact.

Key Components of ACAT

ACAT classifications typically include:

ACAT I – Major Defense Acquisition Programs (MDAPs) with the highest cost thresholds and strategic significance.

ACAT II – Significant programs below ACAT I thresholds but requiring component-level oversight.

ACAT III – Lower-cost, lower-complexity programs.

ACAT IV – Used by some components for smaller acquisitions with minimal oversight.

Cost thresholds are defined in DoD policy and may change over time.

How ACAT Works in DoD Acquisition

ACAT determines:

Who serves as Milestone Decision Authority

Required acquisition documentation

Testing and reporting requirements

Level of executive oversight

Higher ACAT programs require more formal reviews and stricter compliance controls.

Why ACAT Matters in Government Contracting

Understanding ACAT levels helps contractors:

Anticipate proposal complexity

Prepare for documentation requirements

Allocate compliance resources appropriately

Align with executive review expectations

Higher ACAT programs typically involve greater scrutiny and performance tracking.

Common Misconceptions About ACAT

ACAT is just a budgeting label.

ACAT affects governance, milestone reviews, testing requirements, and executive oversight.

ACAT never changes.

A program's designation may change if cost, scope, or impact shifts.

Frequently Asked Questions

What determines ACAT level?

Primarily total program cost, complexity, and national defense impact.

Does ACAT affect contractors?

Yes. Higher ACAT programs require stricter compliance, reporting, and performance standards.