This report provides technical information necessary to update and expand appropriate ASME materials, construction and design codes for application in future Gen IV nuclear reactor systems that operate at elevated temperatures. The scope of work is divided into specific areas that are tied to the Generation IV Reactors Integrated Materials Technology Program Plan. This report is the result of work performed under Task 9 titled ? Update and Improve Subsection NH ? Simplified Elastic and Inelastic Design Analysis Methods.?