Don’t Discard QC Samples Without Prior QA Clearance in GMP

Never Discard QC Samples Without Prior QA Authorization

Remember: QC samples must not be discarded unless QA has reviewed, approved, and documented the action to ensure compliance and traceability.

Why This Matters in GMP

Quality Control (QC) samples—including raw material, in-process, finished product, and stability samples—are essential for verifying product quality, conducting investigations, and supporting regulatory inspections. Discarding these samples without QA approval eliminates critical evidence required for retesting, root cause analysis, or audit inquiries. GMP dictates that samples be retained for defined periods and disposed of only after QA confirms all related activities (e.g., batch release, stability studies, complaint investigations) are complete. Unauthorized disposal reflects poor control and undermines quality assurance frameworks.

Also Read: Follow FEFO Policy for Product Stock Rotation in GMP Warehousing

Regulatory and Compliance Implications

FDA 21 CFR Part 211.170 specifies retention durations and handling protocols for reserve samples. EU GMP Chapter 6 outlines strict rules for sample retention and controlled disposal with QA sign-off. WHO GMP and Schedule M require defined retention periods, destruction logs, and supervisory approvals. Inspectors examine sample logs, destruction records, and QA authorization trails. Discarding samples prematurely or without documentation is viewed as a critical data and compliance gap that may impact product traceability.

Implementation Best Practices

Maintain a

centralized sample retention register with defined retention timelines per product and material type.

Establish SOPs for sample disposal, including approval formats, criteria, and QA sign-off requirements.

Ensure QA reviews all relevant batch release, complaint, and stability data before authorizing disposal.

Retain physical samples in labeled, secure storage with environmental controls and access logs.

Record every disposal event with date, sample ID, disposal method, QA authorization, and witness initials.

Regulatory References

FDA 21 CFR Part 211.170 – Reserve Samples and Retention
EU GMP Chapter 6 – Retention and Destruction of Samples
WHO GMP – Sample Retention Policy
Schedule M – QC Sample Handling and Disposal