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1.1 Scope of CEN/TS 1993-1-901 (1) This document provides rules for structural design of steel orthotropic bridge decks against fatigue using geometric stresses, employing the hot-spot stress method where possible. (2) This document only applies to materials which conform to EN 1993-1 (all parts), but it does not apply to stainless steels and weathering steels. (3) This document only applies to structures where execution conforms to EN 1090-2. NOTE Supplementary execution requirements are indicated in the detail category tables. (4) The fatigue resistances given in this document apply to orthotropic bridge decks operating under normal atmospheric conditions and with sufficient corrosion protection and regular maintenance. 1.2 Assumptions (1) Unless stated otherwise, EN 1990-1, EN 1991-2, EN 1993-1 (all parts) and EN 1993-2 apply. (2) The design methods given in this document are applicable if - the execution quality is as specified in EN 1090-2, and - the construction materials and products used are as specified in the relevant parts of EN 1993 (all parts), or in the relevant material and product specifications.