Which role is typically authorized to inspect after major modification?

• A. Maintenance Technician
• B. Authorized Inspector
• C. Project Engineer
• D. Safety Officer

Answer: (B)

After a major modification, the formal verification of code compliance and certification is done by the Authorized Inspector—the person empowered by the jurisdiction to inspect and approve alterations to ASME vessels. The Authorized Inspector reviews that the modification was designed, fabricated, and tested according to the code, including materials, welding procedures, nondestructive examination results, documentation, and any required re-rating or re-stamping. This position has the authority to issue the official inspection certificate and authorize continued use of the vessel.

Other roles involved in the process may contribute to the modification work, but they do not carry the official code-inspection and stamping authority. A Maintenance Technician performs hands-on repair, a Project Engineer oversees design and project execution, and a Safety Officer focuses on safety practices, not the formal code conformity certification.