This report provides interim guidelines for the layaway and periodic inspection, maintenance, and repair of historic buildings on U.S. Army installations. It builds on previous facility layaway research by the U.S. Army Construction Engineering Research Laboratory (CERL) documented in CERL Technical Report M-91/23 (July 1991). This report describes the specific requirements for laying away historic buildings, providing guidelines for inspection and periodic maintenance and repair (M & R) for key building systems, components, and subcomponents. Topics discussed include definitions of historic buildings, Federal guidelines for laying away historic buildings, inspection purposes and guidelines, and categories of required M & R for laid away historic facilities. Appendixes to this report include eight extensive checklists to help guide the inspection and M & R of major building systems and components.