What are the two types of shelf-life established by the Department of Defense?

The correct answer is B, as the Department of Defense (DoD) distinguishes two primary types of shelf-life: determinate and indeterminate shelf-life.

Determinate shelf-life refers to items that have a specific period during which they can be used effectively. This period is defined based on certain conditions, after which the items may not be usable or safe for their intended purpose. It allows for precise inventory management and planning, ensuring that materials are used within their optimal timeframe to reduce waste and ensure readiness.

Indeterminate shelf-life, on the other hand, does not have a set expiration date. Items classified under this category can remain usable beyond a certain timeframe, provided they are stored under appropriate conditions and their integrity is maintained. This classification is often applied to items that have the potential to last indefinitely, as long as they are subject to regular inspections and proper handling.

Understanding the distinction between these two types of shelf-life is essential for effective inventory control and ensuring that the military maintains operational readiness with reliable supplies.