Following defects discovered during receiving inspections, which inspection must be performed?

• A. Periodic inspections (PI)
• B. Receiving inspections (RI)
• C. Shipping inspections (SI)
• D. Special Inspection (SPI)

Answer: (A)

Periodic inspections provide ongoing verification that items, after a defect is found in receiving, continue to meet requirements and that any corrective actions have been effective. Receiving inspection catches defects at arrival; once a defect is identified, you don’t stop there—you monitor the affected material or related lot at planned intervals to ensure no drift or recurrence. This ongoing recheck helps ensure quality over time and before final disposition, which is why it’s the required follow-up. Shipping inspections verify before shipment, and a special inspection would be used for particular, high-risk, or nonstandard cases; periodic inspections are the appropriate ongoing check after defects are discovered during receiving.