Who is responsible to ensure that welding equipment conforms to the requirements of AWS D1.1?

The responsibility for ensuring that welding equipment conforms to the requirements of AWS D1.1 primarily falls on the contractor's inspector. This role is critical as the inspector is tasked with overseeing the quality and compliance of welding processes and materials used in construction projects. The inspector reviews the equipment, procedures, and qualifications to ensure they meet the accepted standards outlined in AWS D1.1, which is pivotal for maintaining safety, durability, and structural integrity in welded constructions.

While the manufacturer of the equipment provides products designed to meet specific standards and the project manager oversees overall project compliance, it is ultimately the contractor's inspector who has the direct responsibility to verify that all equipment utilized during welding meets the AWS requirements. The welding foreman may oversee day-to-day operations and ensure that the welding crew adheres to techniques and practices, but the inspector is the one responsible for formally assessing compliance with established standards like AWS D1.1.