The AASHTO LRFD Steel Bridge Fabrication Specifications, First Edition (2023), govern the furnishing and fabrication of steel structures for vehicular bridges, including the structural steel portions of other structures. The specifications are written to achieve quality and value from a common document that standardizes vehicular steel bridge fabrication in the United States, minimizing variations among projects. Sections address fabrication processes such as cutting and shearing of plates and shapes and the horizontal curving of beams and girders. Requirements are also set out for surface preparation of uncoated weathering steel and for the straightness of longitudinal and transverse stiffeners. By standardizing fabrication requirements, the specifications aim to provide economy for fabricators and owners alike. They are intended for bridge fabricators, fabrication inspectors, and agency engineers specifying steel bridge work.