Laboratory Sample Chain of Custody Inspection Checklist [FREE PDF]

Sample chain of custody (CoC) documentation is a critical requirement under ISO/IEC 17025:2017 and CLIA 42 CFR Part 493, ensuring that every sample is tracked from collection through disposal with an unbroken, auditable record. Failures in CoC documentation can invalidate test results, trigger regulatory sanctions, and compromise legal or clinical defensibility of laboratory findings. This checklist guides laboratory personnel through a systematic review of all CoC procedures, documentation cont

  • Industry: Laboratory Services
  • Frequency: Per Event
  • Estimated Time: 25-40 minutes
  • Role: Laboratory Manager
  • Total Items: 36
  • Compliance: ISO/IEC 17025:2017 Section 7.4 - Handling of Test Items, CLIA 42 CFR 493.1232 - Specimen Submission, Handling, and Referral, EPA 40 CFR Part 136 - Guidelines for Sample Custody, GLP 21 CFR 58.190 - Specimen and Data Storage, CAP GEN.40000 - Specimen Identification and Labeling

Sample Receipt & Initial Documentation

Verify that all incoming samples are properly received, logged, and assigned unique identifiers at the point of entry.

  • Does each incoming sample have a unique sample identification number assigned at receipt?
  • Is the date and time of sample receipt recorded in the laboratory information system (LIS) or logbook?
  • Is the condition of each sample documented upon receipt (e.g., hemolysis, leakage, temperature deviation)?
  • Is the identity of the person receiving each sample recorded?
  • Are rejected or compromised samples documented with reason for rejection and client notification recorded?

Chain of Custody Form Integrity

Review physical or electronic CoC forms for completeness, accuracy, and proper authorization signatures.

  • Is a completed CoC form accompanying each sample or sample batch?
  • Does the CoC form include client name, address, sample IDs, collection date/time, and requested analyses?
  • Are all custody transfers on the CoC form signed and dated by both the releasing and receiving parties?
  • Are electronic CoC records protected by audit trail or electronic signature controls?
  • Are CoC forms retained for the minimum required retention period per regulatory requirements?

Sample Labeling & Tracking

Confirm that sample labels are accurate, durable, and consistently matched to CoC documentation throughout the workflow.

  • Are sample container labels legible, waterproof, and securely attached to each container?
  • Does the label information match the corresponding CoC form and LIS entry without discrepancy?
  • Are barcodes or RFID tags on samples scanning correctly in the laboratory tracking system?
  • Are sample aliquots labeled with the parent sample ID and aliquot designation?
  • Is the current location of each sample within the laboratory recorded in the tracking system?

Sample Storage & Physical Security

Inspect storage conditions, access controls, and physical security measures protecting sample integrity.

  • Are samples stored at the correct temperature per collection requirements or client specifications?
  • Is access to sample storage areas restricted to authorized personnel only?
  • Are storage area temperatures monitored and logged continuously or at minimum twice daily?
  • Are samples stored in a manner that prevents cross-contamination between different samples or batches?
  • Are temperature excursion events documented and assessed for sample integrity impact?
  • Is photographic evidence collected for any samples showing signs of tampering or damage?

Intra-Laboratory Transfer & External Transport Controls

Verify that all internal sample movements and external transfers to reference laboratories are documented with proper custody signatures.

  • Are internal laboratory transfers of samples documented in the LIS with timestamps and personnel IDs?
  • Are samples transferred to external or reference laboratories accompanied by a completed CoC form?
  • Are samples packaged according to DOT/IATA transport regulations during external shipment?
  • Is a signed receipt obtained from the receiving party for all outgoing sample transfers?
  • Are tracking numbers or shipping records retained and linked to the sample ID in the LIS?

Analytical Phase CoC Verification

Confirm that CoC integrity is maintained through the analytical phase including analyst identification and instrument traceability.

  • Does each analytical run record include the sample IDs analyzed, analyst name, date, and instrument used?
  • Are sample preparation steps (dilution, extraction, digestion) documented with traceability to the sample ID?
  • Are test result entries traceable to specific sample IDs with no ambiguity in the raw data?
  • Are corrections to analytical records made with a single strikethrough, initialed, dated, and reason provided?
  • Are blank and duplicate samples included in each analytical batch to verify analytical integrity?

Sample Disposal & Record Archival

Ensure that sample disposal procedures and record retention meet regulatory requirements for the applicable laboratory type.

  • Is sample disposal performed according to the laboratory's waste management plan and applicable regulations?
  • Is sample disposal documented with date, method, sample IDs disposed, and signature of responsible personnel?
  • Are CoC records and analytical reports archived in a secure, retrievable format for the required retention period?
  • Are archived records protected against alteration, deterioration, or loss?
  • Is a log maintained of all records retrieved from and returned to the archive?

Related Laboratory Checklists

Why Use This Laboratory Sample Chain of Custody Inspection Checklist [FREE PDF]?

This laboratory sample chain of custody inspection checklist [free pdf] helps laboratory services teams maintain compliance and operational excellence. Designed for laboratory manager professionals, this checklist covers 36 critical inspection points across 7 sections. Recommended frequency: per event.

Ensures compliance with ISO/IEC 17025:2017 Section 7.4 - Handling of Test Items, CLIA 42 CFR 493.1232 - Specimen Submission, Handling, and Referral, EPA 40 CFR Part 136 - Guidelines for Sample Custody, GLP 21 CFR 58.190 - Specimen and Data Storage, CAP GEN.40000 - Specimen Identification and Labeling. Regulatory-aligned for audit readiness and inspection documentation.

Frequently Asked Questions

What is a Laboratory Sample Chain of Custody Inspection Checklist [FREE PDF]?

A Laboratory Sample Chain of Custody Inspection Checklist [FREE PDF] is a standardized inspection form used by laboratory manager to ensure consistent laboratory services operations. It contains 41 inspection points organized into 7 sections. FREE Laboratory Sample Chain of Custody checklist PDF. Ensure ISO 17025 & CLIA 42 CFR 493 compliance for sample integrity and traceability.

How often should I use this laboratory services checklist?

This checklist is designed to be completed per event. Regular use ensures compliance with ISO/IEC 17025:2017 Section 7.4 - Handling of Test Items and CLIA 42 CFR 493.1232 - Specimen Submission, Handling, and Referral and helps identify issues before they become problems.

Can I download this Laboratory Sample Chain of Custody Inspection Checklist [FREE PDF] as a PDF?

Yes, you can download this checklist as a FREE PDF for printing or offline use. The checklist includes 41 fields across 7 sections and typically takes 25-40 minutes to complete.

What compliance standards does this checklist cover?

This checklist helps ensure compliance with ISO/IEC 17025:2017 Section 7.4 - Handling of Test Items, CLIA 42 CFR 493.1232 - Specimen Submission, Handling, and Referral, EPA 40 CFR Part 136 - Guidelines for Sample Custody, GLP 21 CFR 58.190 - Specimen and Data Storage, CAP GEN.40000 - Specimen Identification and Labeling. Following these standards protects your organization and ensures best practices.

How do I complete this laboratory services inspection checklist?

Begin by completing the header fields for Inspection Date & Time, Inspector Name, Laboratory Location / Room, Sample Batch or Work Order Number, and Shift. Work through each of the 7 sections, marking items Yes or No as applicable. The entire process takes approximately 25 to 40 minutes.

What are the key sections in this laboratory services checklist?

This laboratory services checklist is organized into 7 key sections: Sample Receipt & Initial Documentation, Chain of Custody Form Integrity, Sample Labeling & Tracking, Sample Storage & Physical Security, Intra-Laboratory Transfer & External Transport Controls, Analytical Phase CoC Verification, Sample Disposal & Record Archival. Each section contains specific inspection points that laboratory manager must verify. The structured layout ensures nothing is missed during laboratory services inspections and makes the process efficient, typically taking 25-40 minutes to complete.

Who should use this Laboratory Sample Chain of Custody Inspection Checklist [FREE PDF]?

This checklist is primarily designed for laboratory manager working in laboratory services operations. However, it is also valuable for quality assurance teams, safety officers, compliance managers, and supervisors who need to verify that laboratory services standards are being met. Organizations of all sizes can benefit from using this Laboratory Sample Chain of Custody Inspection Checklist [FREE PDF] to maintain consistency and accountability.

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