Which categories of military munitions are defined by the MMR?

The Military Munitions Rule (MMR) specifically defines certain categories of military munitions to provide clear regulatory guidance and ensure safety and environmental protection. One of the primary focuses of the MMR is to address the management of unexploded ordnance (UXO), discarded military munitions (DMM), and munitions constituents.

Unexploded ordnance refers to munitions that did not detonate when they were designed to, posing potential risks to safety and the environment. Discarded military munitions encompass items that are no longer deemed usable but still require careful handling and disposal. Munitions constituents refer to the chemical components in military munitions that can have environmental impacts.

These specific categories are crucial because they help delineate the munitions that might pose risks and are thus subject to regulation under environmental laws. Other categories of munitions, while relevant in a broader context, do not fall under the specific definitions outlined by the MMR, which focuses mainly on those categories with significant safety and environmental concerns.