What is the life expectancy categorization for a semi-permanent standard?

For a semi-permanent standard, the life expectancy categorization falls in the range of more than 2 years but less than 10 years. This classification indicates that items or structures designated as semi-permanent are expected to remain functional and effective for a substantial period, allowing for reasonable longevity while not reaching the more extensive durability attributed to permanent standards.

This mid-range life expectancy highlights the balance between temporary solutions, which typically last less than 2 years, and more durable constructions that are designed to last over a decade. Understanding these categories helps in planning and resource allocation for projects that depend on the lifespan of materials or structures.