The SEAOC Structural/Seismic Design Manual 2009 IEBC provides a step-by-step approach to applying the structural provisions of the 2009 International Existing Building Code® (IEBC®) and includes 2012 IEBC updates where applicable. The manual is intended to help the reader understand and apply the IEBC seismic provisions and to provide clear, concise and graphic guidance on the application of specific provisions of the code.