How are witnessed tests documented in QA/QC records?

• A. They are not documented.
• B. Only a verbal note is kept.
• C. The test report is attached to the record but no witness signature is needed.
• D. Document who witnessed, date, equipment, test results, and attach the test report; signatures confirm witness.

Answer: (D)

The key idea is that witnessed tests must be recorded with complete, verifiable information that shows who witnessed the test, when it was done, what equipment was used, what the results were, and that the test report is attached and officially witnessed. This creates a clear, auditable trail that verifies the test occurred under the proper conditions and that someone independent confirmed the results. Attaching the test report ties the detailed results to the record, and the witness’s signature provides accountability that the test was observed and accepted.

Anything less fails the requirement for traceability. A record that isn’t documented isn’t verifiable. A verbal note isn’t a permanent, auditable record. Attaching the test report without a witness signature leaves uncertainty about who verified the test and when.