ASME BPVC Section XI: Inservice Inspection of Nuclear Components, Division 1, 2023

ASME BPVC Section XI, Division 1 – 2023 establishes mandatory rules for the inservice inspection, testing, and evaluation of Class 1, 2, 3, MC, and CC components in light-water-cooled nuclear power plants. It ensures continued fitness-for-service through systematic assessments that support operational safety, regulatory compliance, and plant life extension.

Highlights:

• Requirements for inspection schedules, flaw evaluation, and acceptance standards
• Preservice and inservice inspection procedures for welds, pressure boundaries, and supports
• Nondestructive examination (NDE) personnel qualifications aligned with ASNT SNT-TC-1A and CP-189
• Repair/replacement protocols, pressure testing, and documentation practices
• Guidelines for ultrasonic, visual, eddy current, and supplemental inspection methods
• Mandatory appendices for flaw analysis, ultrasonic performance demonstration, and digital techniques
• Applicable to both metallic and concrete containment structures and liners
• Integrated alignment with ASME Sections III (Design & Construction), V (NDE), and IX (Welding)

Who It’s For:
Nuclear facility operators, engineers, inspectors, regulators, and QA personnel involved in the maintenance, inspection planning, or license renewal of ASME Section XI-regulated components.

BPVC.XI.1-2023