One responsibility of a munitions accountable systems officer (MASO) is to:

The responsibility of a munitions accountable systems officer (MASO) includes reviewing and signing Combat Ammunition System (CAS) transaction history listings daily. This function is crucial for maintaining accurate accountability of munitions, which is a core requirement of the MASO's role. By diligently reviewing these transaction histories, the MASO ensures that all movements, issues, and receipts of ammunition are accurately recorded and discrepancies can be identified and addressed promptly.

This responsibility supports the overall integrity of munitions management by providing an audit trail and oversight of the munitions inventory, thereby reinforcing accountability and accurate record-keeping, which are essential for operational readiness and safety. Additionally, the MASO plays a key role in ensuring adherence to regulations and standards in munitions management, making this daily review a critical aspect of their duties.