What Does OECD GLP Actually Require? A Lab Buyer's Reading Guide
Quick facts: the OECD Principles of Good Laboratory Practice are the quality system behind non-clinical safety studies — the toxicity, residue and chemistry work that supports a regulatory submission. GLP does not ask a laboratory to buy different consumables; it asks the laboratory to prove which consumables it used, from which lot, stored under which conditions, and recorded by which person. This guide reads the Principles from a purchasing angle, separates GLP from the two standards buyers confuse it with, and lists the receiving-record fields that survive an inspection.
| Question | What it means for a Canadian laboratory |
|---|---|
| What the Principles govern | Non-clinical safety studies on a test item: chemicals, pesticides, pharmaceuticals and similar submissions |
| What they do not govern | Routine patient testing, which is covered by provincial requirements and ISO 15189 where accreditation is sought |
| Who administers it in Canada | Health Canada's Good Laboratory Practices compliance monitoring programme, alongside the pesticide and chemicals regimes |
| What a supplier has to hand over | Lot-level identity, quantity, receipt date, expiry and storage conditions for every material that enters a study |
| How data travels | Under the OECD Mutual Acceptance of Data system, GLP studies performed in one member country are generally accepted in the others |
What does OECD GLP actually require of a laboratory?
The Principles are organised in ten numbered sections: test facility organisation and personnel; quality assurance programme; facilities; apparatus, materials and reagents; test systems; test and reference items; standard operating procedures; performance of the study; reporting of study results; and storage and retention of records and materials. Reading that list as a buyer, four headings do the heavy lifting.
Section 4 asks that apparatus, materials and reagents be fit for the purpose they are used for, and that they be labelled and stored as the standard operating procedures require. Section 6 covers test and reference items: identity, receipt, handling, sampling and storage all have to be documented. Section 7 pushes the detail into written procedures, which is why the receiving record fields are usually fixed by the laboratory rather than by the supplier. Section 8 puts the study itself under a named Study Director.
Two structural rules are worth remembering because they explain why laboratories ask suppliers for paperwork that a clinic never asks for. A study has one Study Director, a single named person with overall responsibility for its conduct and its report. Quality assurance personnel work independently of study conduct — they inspect the record, they do not produce it. Anything that enters a study therefore has to be traceable to an entry that a second person could have read and checked.
Which studies and labs does GLP cover in Canada?
GLP applies where the output is a safety study that will be submitted to a regulator: a repeat-dose toxicity study, a residue study, a chemistry study on a new substance. Health Canada maintains a Good Laboratory Practices monitoring programme for the studies it receives, and the pesticide route runs through the Pest Control Products Act while industrial chemicals are handled under the Canadian Environmental Protection Act, 1999.
Because Canada takes part in the OECD Mutual Acceptance of Data system, a study conducted to the Principles in one member country is normally accepted in the others. That is a purchasing fact as much as a regulatory one: the consumables used in a study can end up being described in a dossier read on another continent, so the lot code on the case is the thread that holds the description together.
**The correction most buyers need first.** A "GLP laboratory" is not an accredited medical laboratory. GLP governs a study dossier; ISO 15189 governs a laboratory that tests patient specimens. The same building can hold both, with a clinical laboratory on one floor and a safety-study unit on another, and the two keep different records for the same box of consumables. If a tender asks for GLP-compliant reports for diagnostic testing, the requested document is the wrong instrument — what belongs in that pack is the accreditation scope, the validated methods and the test reports. Catching that at tender stage avoids a supplier change later, when nobody can produce a document that was never required.
Retention follows the receiving authority: the Principles require records and materials to be kept for the period that authority specifies, which is why laboratories write an explicit retention period into their own procedures rather than quoting a number from the guidance.
Is OECD GLP the same as ISO/IEC 17025 or ISO 15189?
They answer different questions, and buyers meet all three in the same supply conversation. GLP certifies a study; ISO/IEC 17025 certifies the competence of a testing or calibration laboratory; ISO 15189 adds the medical-laboratory requirements to that competence. For contrast, the United States writes GLP into regulation rather than a principles document: 21 CFR Part 58 for FDA-regulated studies and 40 CFR Part 160 for pesticide studies.
| Dimension | OECD GLP | ISO/IEC 17025 | ISO 15189 |
|---|---|---|---|
| What the system attaches to | A single safety study and its raw data | The laboratory's competence to test or calibrate | A medical laboratory's quality and competence |
| What an auditor or buyer receives | Study report, quality assurance statement, archived raw data | Accreditation scope and test or calibration reports | Accreditation scope and patient reports |
| Who checks it | GLP compliance monitoring by regulators | An accreditation body | Accreditation body, plus health authorities |
| How a consumable lot is treated | Receipt, identity, storage and expiry documented inside the study file | Traceability and validity of equipment and reagents | Documented verification before patient use |
| Purchasing consequence | Case lot codes have to be recorded, not just product names | Traceability evidence for instruments and reagents | Lot verification logged before use |
The practical overlap is where the buyer saves money. A consumable ordered once can serve a GLP study, an accredited method and a clinical protocol, provided the receiving record carries the fields all three systems want: identity, lot, quantity, date, storage and signature. Buy a case that cannot be split by lot, and one of those three records will be short.
What has to be recorded for each batch of consumables under GLP?
The receiving record is the document that turns a purchase into study evidence. In practice it holds: item name and manufacturer, lot or batch code, quantity received, date received, expiry date, storage location and storage conditions, the name of the person who booked it in with their signature and the date, and a cross-reference to the study or material file the entry belongs to. Where a material is measured before use, the result goes in the same entry.
The point that surprises purchasers is ownership of the record. It belongs to the study file, not to the store room. A purchase order proves that something was bought; it does not prove what was opened at the bench on the day a sample was processed. An auditor working for a receiving authority will ask the quality assurance unit for the study file, so the receiving entry has to be findable from the study, not only from the inventory.
There is a second consequence that shows up in case-quantity buying. When a pallet is broken down and a case ends up holding units from more than one production run, a single receiving entry for that case silently merges two lots. Either the supplier ships lot-pure cases — one lot code per case, printed on the case label — or the laboratory has to open the case on receipt and record each lot it finds. The first option is a purchasing decision; the second is bench time. It is worth putting lot purity into the original enquiry, because it costs nothing to promise and is expensive to reconstruct afterwards.
How do you check a delivery against GLP documentation?
A receiving check that takes a few minutes at the dock prevents most of the paperwork that follows a failed audit. Work in the order the documents arrive.
| What arrives | What the record needs | What to check before signing |
|---|---|---|
| Case label with product, lot code, quantity and expiry | The same four fields, entered by lot, not by product | Lot on the case matches the lot on the packing slip; no over-labelling or handwritten corrections |
| Certificate of analysis, where the supplier provides one | Filed with the material file, referenced from the receiving entry | The parameters tested are the ones that matter for the intended use |
| Sealed sterile packaging or a controlled container | A note on arrival condition, and quarantine if damaged | Seals intact, no crushed or punctured units, no torn case lining |
| Temperature-controlled or light-sensitive items | Storage location and conditions mapped to the procedure | Storage log started on receipt, with the recorder identified |
| The shipment paperwork itself | Storage location, conditions and signature | No back-dated entries: the date written is the date of receipt |
Two habits separate a laboratory that can produce records from one that cannot. First, quarantine anything non-conforming the day it lands, and keep it out of stock while the decision is made — a quarantined lot that quietly returns to the shelf is worse than a shortage. Second, record storage conditions even when nothing unusual happened; a storage entry with a gap is the entry an inspector asks about.
What does GLP say about reagents, containers and labelling?
Three sections of the Principles meet at the bench. Facilities have to be suitable and separated where the work requires it, which is also how consumable storage areas are judged. Materials and reagents have to be labelled with what they are and when they were opened or prepared. Standard operating procedures fix who labels what, when, and where the entry goes.
From a purchasing position, the features that make a container recordable are unglamorous and worth insisting on: a graduated body so a volume can be written down as a number, a screw cap that survives transport and storage, and a lid panel that takes ink so the lot and the date can be written on the container itself rather than on a label that falls off in a fridge. A graduated 90 mL sample cup with a write-on lid covers a large share of routine liquid sample work; higher-volume specimens, such as a 120 mL screw-cap container, follow the same logic and deserve the same fields on the receiving entry.
Personal protective equipment sits under the same umbrella. Gloves and other disposables are part of how personnel and materials are kept separate, and their specification is a written record like any other, which is why a lot-coded case of examination gloves belongs in the material file next to the nitrile specification the laboratory has adopted.
How should a buyer handle non-conforming lab consumables?
Write the non-conformity down and treat it as a document, not an inconvenience. The sequence that holds up: quarantine the lot, record what was found and when, decide whether it was used in any study, and if it was, note it in that study file. Then replace rather than replenish — a fresh lot entered on its own receiving line keeps the chain intact, while replenishing an existing container mixes a new lot into an old record.
Keep returns out of stock until they are formally released. Where a lot is replaced, ask for the replacement under its own lot code so the two events stay distinguishable in the record. Suppliers who can quote a lot code on request, and who label a case with a single lot, remove most of this work before it reaches the bench.
Ordering for a clinic, lab or care home? Wholesale and multi-site ordering covers case quantities and account setup for institutional buyers, and the B2B wholesale collection lists the lines stocked for clinics, laboratories and care homes. Buyers comparing specification sheets before a tender will also find the laboratory consumables collection useful as a starting inventory, alongside the reference material in the CliniEco learning hub.
How do you phase a GLP-readiness purchase?
Start where a lot number is written down most often. Sample containers and swabs carry the highest volume of bench entries in most safety-study units, so standardising those two lines — a graduated container with a write-on lid, a swab with a documented tip and shaft material — shrinks the receiving workload immediately. A graduated 90 mL sample cup, a 120 mL screw-cap specimen container and a case of individually wrapped cotton swabs cover a large part of routine sample handling, and each arrives with the product and lot identification the receiving record needs. Laboratories that also centrifuge or plate samples generally add 15 mL sterile centrifuge tubes, and every bench runs on nitrile examination gloves that can be recorded by case lot.
Second, agree lot handling with the supplier before the first case order: one lot per case, lot code on the case label, and a packing slip that lists the lot rather than only the product. Third, trial before committing to case quantities. A wholesale account lets a unit check case labelling, packaging integrity and storage behaviour against its own receiving form before the first bulk order goes into the material file.
References and standards cited
- OECD Principles of Good Laboratory Practice (as revised 1997) (link checked 20 September 2026)
- OECD — Mutual Acceptance of Data (MAD) in the assessment of chemicals (link checked 20 September 2026)
- Health Canada — Good Laboratory Practices programme (link checked 20 September 2026)
- Pest Control Products Act, S.C. 2002, c. 28 (link checked 20 September 2026)
- Canadian Environmental Protection Act, 1999 (link checked 20 September 2026)
- Food and Drugs Act (link checked 20 September 2026)
- U.S. FDA — Good Laboratory Practice for Nonclinical Laboratory Studies, 21 CFR Part 58 (link checked 20 September 2026)
- U.S. EPA — Good Laboratory Practice Standards, 40 CFR Part 160 (link checked 20 September 2026)
- ISO/IEC 17025:2017 — General requirements for the competence of testing and calibration laboratories (link checked 20 September 2026)
- ISO 15189:2022 — Medical laboratories: requirements for quality and competence (link checked 20 September 2026)
- ISO 11138-1:2017 — Sterilization of health care products: biological indicators (link checked 20 September 2026)
- ASTM D6319 — Standard specification for nitrile examination gloves for medical application (link checked 20 September 2026)
- Basic Principles of the Validation for Good Laboratory Practice Institutes (Toxicol Res, 2009) (link checked 20 September 2026)
- Good clinical practices in the bioanalytical laboratory (Bioanalysis, 2023) (link checked 20 September 2026)
- Effectiveness of data auditing as a tool to reinforce good research data management practice (BMC Med Ethics, 2021) (link checked 20 September 2026)
- Implementation of the EQIPD Quality System (J Neurosci Methods, 2024) (link checked 20 September 2026)
- Good Laboratory Practice: initial development, necessity and issues of data reliability in basic research (Yakugaku Zasshi, 2019) (link checked 20 September 2026)
Buying for a facility rather than a single practice? Request a B2B quote and we will price your volume with Canadian warehouse delivery.
Related Reading
- Laboratory-Acquired Infections: 3 Documented Outbreaks and the Supply-Chain Failures Behind Them
- Cotton Swabs for Micro Lab Swab Tests: Which Tip and Shaft to Choose
- After a Specimen Transport Audit: Rebuilding the Log and the Packaging
- ISO 11737-1 and -2: Bioburden and Sterility Testing Explained
- Refrigerated vs Ambient Specimen Transport: What Changes for Canadian Labs
- diagnostic & research lab supplies
- sterilization log sheet template
Frequently Asked Questions
What does GLP stand for in a laboratory?
Good Laboratory Practice: the OECD Principles that govern how non-clinical safety studies are planned, performed, recorded and archived. It is a quality system for studies, not a product standard.
Does a Canadian medical laboratory have to follow OECD GLP?
No. GLP applies to non-clinical safety studies submitted to a regulator. A laboratory testing patient specimens follows provincial licensing requirements and, where it seeks accreditation, ISO 15189. Many facilities run both kinds of work in the same building.
Who monitors GLP compliance in Canada?
Health Canada maintains a Good Laboratory Practices compliance monitoring programme for studies it receives. Pesticide studies sit under the Pest Control Products Act and industrial chemicals under the Canadian Environmental Protection Act, 1999.
What records must accompany lab consumables under GLP?
A receiving record for each lot: item name, manufacturer, lot or batch code, quantity, date received, expiry date, storage location and conditions, and the signature of the person who booked it in, cross-referenced to the study or material file.
Is a certificate of analysis required by OECD GLP?
The Principles require materials to be fit for purpose and their receipt and storage to be documented. A certificate of analysis is a supplier document that helps you verify a lot; GLP itself prescribes the record, not a particular certificate format.
Can a study use two lots of the same consumable?
Yes, provided the study file identifies each lot and the work it was used for. Problems start when a case mixed from several lots is recorded as one entry, because the study record can no longer separate them.
How long do GLP records have to be kept?
For the retention period set by the authority that receives the data. Laboratories normally write their own retention period into the standard operating procedure and the study file so the answer is auditable rather than assumed.
What is the difference between GLP and GMP?
GLP covers the non-clinical safety study and its raw data; GMP covers the manufacturing of a drug or device. They meet at supplier qualification, where the same incoming material may be documented under both systems.
Last updated: September 2026. CliniEco Medical is a licensed medical device establishment (MDEL #35334).
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