ACN

An Award/Action Control Number is a unique identifier assigned to track individual contract actions through procurement systems. ACNs enable tracing of specific awards, modifications, and other contract actions from initiation through completion and closeout.

ACNs are used internally by contracting offices to manage workflow, track approvals, and maintain accountability for procurement actions. Contractors may encounter ACN references in correspondence or system interfaces. Understanding that each contract action has a unique tracking number helps contractors reference specific transactions when communicating with contracting offices.