Who is the approval authority for firing depleted uranium munitions in training?

The approval authority for firing depleted uranium munitions in training is the DCS, G-3/5/7, and ACSIM. This designation reflects the high-level oversight required for the use of such specialized and potentially hazardous munitions.

Depleted uranium munitions are used due to their unique properties, particularly their ability to penetrate armor effectively. However, the use of these munitions also raises environmental, health, and safety concerns, which necessitate stringent approval processes and oversight. The Deputy Chief of Staff (DCS), alongside the G-3/5/7 and Assistant Chief of Staff for Installation Management (ACSIM), is tasked with ensuring that all appropriate regulations, safety protocols, and environmental considerations are adhered to before any training or live-fire exercises involving depleted uranium can proceed.

This layered approach to approval helps mitigate risks associated with the use of these munitions, ensuring that military operations align with safety and environmental standards. Other entities mentioned in the options, such as brigade commanders or MACOM, may have responsibilities in different contexts, but they do not hold the requisite authority to grant such approvals for depleted uranium munitions.