Contract procedures for building works - Part C: General technical specifications for building works; general rules for all kinds of building works
German title
VOB Verdingungsordnung für Bauleistungen - Teil C: Allgemeine Technische Vertragsbedingungen für Bauleistungen (ATV); Allgemeine Regelungen für Bauarbeiten jeder Art
Please get in touch with the relevant contact person at DIN if you have problems understanding the content of the standard or need advice on how to apply it.