The NBIC provides guidance for which activity related to pressure vessels?

• A. Welding procedures
• B. Hydrostatic testing
• C. Re-stamping after MAWP changes
• D. Design of vessels

Answer: (C)

The main idea tested is how the National Board Inspection Code (NBIC) guides changes to a vessel’s official identification when its rated pressure changes. NBIC covers inspection, repair, and alteration activities, and a key part of alteration is updating the vessel’s stamping to reflect any new Maximum Allowable Working Pressure (MAWP). Re-stamping ensures the nameplate information accurately represents the current rating, which is crucial for safe operation and compliance.

Welding procedures are governed mainly by the ASME Code, particularly Section IX, not NBIC. Hydrostatic testing is also addressed by the design and testing requirements of the appropriate ASME sections, with NBIC providing guidance more on inspection, repair, and alteration context rather than the standard testing procedures. Design of vessels is firmly in the domain of the ASME BPVC design sections.