Conservation of Historic Towns--Charter on the Conservation of Historic Towns

Icomos International Wood Committee--Principles of Practice for the Preservation of Historic Timber Buildings

National Center for Preservation Technology and Training--NCPTT, created by Congress, is an interdisciplinary program of the National Park Service to advance the art, craft and science of historic preservation in the fields of archeology, historic architecture, historic landscapes, objects and materials conservation, and interpretation. NCPTT serves public and private practitioners through research, education and information management.