WAC 392-343-018
WAC 392-343-018. Definition—Portable facility
As used in this chapter, "portable facility" means any factory-built structure, transportable in one or more sections, which requires a chassis to be transported, and is designed to be used as an educational space with or without a permanent foundation when connected to the required utilities. The structure shall be trailerable and capable of being demounted and relocated to other locations as needs arise.