What type of items are considered "non-mission essential"?

The definition of "non-mission essential" items accurately aligns with the understanding that these items are not critical for performing immediate tasks or operations. They are typically optional, meaning that while they may enhance performance or provide additional comfort, they do not directly impact the success of a mission or operational objectives.

In contrast, items necessary for a unit's operations are classified as mission essential because they are vital for completing assigned tasks. Items used only in training exercises might also be considered non-mission essential, but this classification is more context-specific and does not encompass the broader concept of optional items. Additionally, items that can be substituted with other supplies could be considered mission essential if the substitution maintains operational capability. Therefore, items defined as optional and not critical for immediate tasks aptly characterize those non-mission essential resources.