Welding codes are standardized guidelines that ensure the quality and safety of welded structures. These codes provide specifications for materials, design, and testing methods, helping to maintain consistency in welding practices across various industries. They are essential for compliance with safety regulations and for achieving reliable performance in welded components. Different organizations, such as the American Welding Society (AWS) and the American Society of Mechanical Engineers (ASME), develop these codes. Each code addresses specific applications, such as structural welding or pressure vessels, and is regularly updated to incorporate new technologies and safety standards.