1.1 This specification covers engineering and design criteria required for the development of rigid wall relocatable structures (RWRS) and shall be applied to the design of expandable and nonexpandable RWRSs. This specification applies to p This specification covers engineering and design criteria for rigid wall relocatable structures (RWRSs) which shall be used for designing expandable and nonexpendable RWRSs. RWRSs shall be manufactured from recovered materials, wherein intimate contact