This document (DIN EN 1993-1-10/NA) has been prepared by NA 005-08-16 AA "Tragwerksbemessung" ("Design of structures"). This document constitutes the National Annex to DIN EN 1993-1-10:2005-07 "Eurocode 3: Design of steel structures - Part 1-10: Material toughness and through-thickness properties". The European Standard EN 1993-1-10 allows national safety parameters to be specified for a number of points. These national determined parameters (NDP) cover alternative procedures, the provision of individual values, and the selection of classes from designated classification systems. The relevant parts of the text are identified in the European Standard by references to the possibility of national choice. Subclause NA 2.1 contains a list of these parts of the text. This National Annex is part of DIN EN 1993-1-10:2005-07. This National Annex contains national provisions for the selection of steel for fracture toughness and for through-thickness properties, which shall be taken into account when applying DIN EN 1993-1-10:2005-07 in Germany.