The guideline applies to prefabricated sanitary elements in new construction, in the remodelling of existing buildings, for permanent sanitary facilities in mobile units such as ships, trains and other means of transportation. It does not apply to sanitary containers installed in mobile buildings destined for repeated installation and removal. The guidelien applies to wall modules, panels, prefabricated restrooms, installation systems, ready-made toilets. The guideline states requirements to be met by architectural and structural conditions, stability, building physics, building services, transport and storage, installation. General planning of sanitary areas in buildings is not a topic of this guideline. The equipment for various types of buildings is described in VDI 6000 Part 1 through Part 6.