Specifications include, but are not limited to: The Contractor will provide skilled manpower to safely clean large-scale two- and three-dimensional artworks and installations located both indoors and outdoors. Artworks include, but are not limited to, ceramic mosaic murals, glass mosaic murals, metal ceiling and wall installations, suspended art glass installations, and outdoor sculptures. The DR or designee will either provide or pre-approve in writing a list of acceptable cleaning products, devices, and methods. The Contractor will provide skilled manpower to professionally maintain and/or repair a variety of large-scale artworks and art installations located both indoors and outdoors. Art installations include but are not limited to ceramic mosaic murals, glass mosaic murals, metal ceiling and wall installations, suspended art glass installations, and outdoor sculptures. The DR or designee will either provide or pre-approve in writing the method of repair or maintenance necessary to complete the requested services.