The amount and type of codes and standards used by a facility can have

Codes and standards are fundamental inputs to an RBI assessment. They establish the minimum acceptable criteria for design, fabrication, materials, inspection, and testing. These criteria directly influence the determination of acceptable risk, the calculation of corrosion or retirement allowances, and the development of inspection strategies. Therefore, the specific codes applied (e.g., ASME Section VIII, API 510) and the rigor of their application by a facility have a significant and direct impact on the calculated probability of failure and the overall RBI results.

B. This is incorrect. Codes and standards are a cornerstone of equipment integrity and are explicitly considered within the RBI methodology.
C. This understates the importance. Codes provide the baseline for integrity; deviations from them are a primary driver of risk, making their impact significant.

1. API 580, Risk-Based Inspection, 3rd Edition, May 2016, Section 6.4.1, "Codes of Construction and Other Recognized Standards," states these are key inputs for determining acceptable risk and inspection strategies.

2. API 580, Risk-Based Inspection, 3rd Edition, May 2016, Section 7.3.1, "Technical Module Sub-factors," notes that design codes are used to establish retirement criteria, directly affecting the Probability of Failure (PoF) calculation.