For everyone involved in any phase of welding steel structures - engineers, detailers, fabricators, erectors, inspectors, etc. - the new 540-page edition of D1.1 spells out the requirements for design, procedures, qualification, fabrication, inspection, and repair. A wide range of projects, repairs, and product forms come under its authority, including pipe, plate, and structural shapes that are subject to either static or cyclical stresses. Dozens of updates to the Structural Welding Code-Steel make the 2006 edition indispensable for anyone designing, building, or inspecting steel structures and products.