OECD GLP · Principles of Good Laboratory Practice
OECD GLP compliance consulting for safety studies regulators can rely on.
Prepare your test facility to run non-clinical safety studies under the OECD Principles of Good Laboratory Practice, with a quality system the national monitoring authority can inspect. Sterling's expert and experienced consultants work with your study directors, quality assurance staff and management, in 60+ countries. We help our clients put it into practice and prove it.
- Fixed scope, one proposal: consulting, Effivity software, Sterling Academy access and internal auditor training, as applicable to your standard, in one proposal
- A team of expert and experienced laboratory quality consultants, supporting regulated laboratories across sectors and countries since 2003
- The Sterling Promise: 100% on-time completion, 100% success, 8,100+ client engagements. Sterling does not inspect or certify; the national GLP compliance monitoring authority monitors compliance
8,100+ client engagements in 60+ countries.
Sterling client experienceWhat it is
What are the OECD Principles of Good Laboratory Practice?
The OECD Principles of Good Laboratory Practice (GLP) are a quality system for the organisational process and conditions under which non-clinical health and environmental safety studies are planned, performed, monitored, recorded, reported and archived. They are owned and published by the Organisation for Economic Co-operation and Development, and they sit behind the safety data that sponsors submit to regulatory authorities when a product or substance is assessed.
GLP is about the study, not the result. It does not say which test to run; it makes sure a reviewer can later reconstruct who did what, with which item and under which procedure, from the raw data and archived materials. The OECD links GLP to the Mutual Acceptance of Data system, under which safety data generated in line with the Principles in one adhering country can be accepted in others, as the OECD sets out in its Council instruments.
Current text. The OECD Principles of Good Laboratory Practice currently in force, read with the OECD's consensus and advisory documents on applying them, including computerised systems, multi-site studies, short-term studies, field studies, test items and quality assurance.
Who it is for
Who needs OECD GLP compliance?
GLP matters to any test facility, in-house or contract, whose non-clinical safety studies are submitted to a regulator that expects them to be conducted under GLP. Laboratories come to Sterling from four directions:
- A sponsor makes GLP a condition of the study contract. Sponsors want studies placed with a facility the national authority already monitors, and ask for your status before signing.
- A tender or framework requires GLP studies. Tenders for toxicology, ecotoxicology or analytical work specify GLP; the system has to exist before the bid.
- A regulator will receive the data. A dossier is heading to an authority that reviews the GLP status of the studies in it, and the facility has never been through a GLP inspection.
- A group wants one approach across its laboratories. Several sites, or a multi-site study, need consistent roles, procedures and archiving.
Requirements
What are the main OECD GLP requirements?
The Principles define the responsibilities of test facility management, the study director and quality assurance, and then set out requirements under a series of headings. Each heading is summarised below in plain language; the gap analysis checks your facility against the OECD text itself.
- Test facility organisation and personnel: management responsibilities, the appointment and authority of the study director, and qualified, trained staff in sufficient numbers.
- Quality assurance programme: a quality assurance function independent of study conduct, with its own inspections, audits and statements on study reports.
- Facilities: suitable size, construction and separation for test systems, test and reference items, archives and waste.
- Apparatus, material and reagents: equipment that is fit for use, inspected, cleaned, maintained and calibrated, and reagents that are labelled and controlled.
- Test systems: appropriate conditions, housing, handling and records for physical, chemical and biological test systems.
- Test and reference items: receipt, handling, sampling, storage and characterisation, with records that tie each item to each study.
- Standard operating procedures: written, approved procedures for routine activities, available where the work is done.
- Performance of the study: an approved study plan for every study, conducted as planned, with deviations recorded and raw data captured promptly and accurately.
- Reporting of study results: a final report for each study, signed by the study director, stating the extent of compliance with the Principles.
- Storage and retention of records and materials: secure archives for study plans, raw data, reports, specimens and samples, under a named archivist.
What does useful GLP evidence look like?
A master schedule, study director appointments, approved study plans and amendments, raw data you can trace to a person and a time, equipment and calibration logs, test item receipt and characterisation records, quality assurance inspection reports and statements, signed final reports and an archive index. We build the records around your study types, with quality system records in Effivity.
Compliance route
How does a test facility achieve OECD GLP compliance?
There is no GLP certificate. A facility puts the Principles into practice, then the national GLP compliance monitoring authority of its country inspects it under its programme. Sterling prepares the facility; the authority's monitoring and decisions are its own.
- 01Define the studies and where the data will go.Agree the study types, test systems, sites and sponsors in scope, and identify the national authority that monitors facilities in your country.
- 02Gap analysis: review the facility against the Principles.Organisation, quality assurance, facilities, equipment, test systems, items, procedures, study conduct, reporting and archives, with actions, owners and dates.
- 03Build the system and run it on real work.Appoint study directors and quality assurance, write the procedures, set up the master schedule and archive, train staff and conduct studies under the new system.
- 04Test it with quality assurance and a mock inspection.Study-based, facility-based and process-based reviews, a mock inspection by us, and every finding closed with evidence.
- 05Complete the national authority's inspection.Follow the authority's procedure, host its inspection, respond to its findings by its deadline, then keep the system running for its continued monitoring under Sustain™.
Check the route before you sign. GLP status comes from a national compliance monitoring programme, not from a consultant or a certification body. The OECD publishes the list of national GLP compliance monitoring programmes that participate in the Mutual Acceptance of Data; confirm that your country's programme is on it and ask the authority directly about its procedure.
Cost
How much does OECD GLP compliance cost?
An analytical laboratory adding GLP to an existing quality system is a different programme from a new toxicology facility. Every proposal shows each component, with an all-inclusive proposal for our part.
| Cost component | What affects it |
|---|---|
| Consulting and implementation | Study types, test systems, sites, the current system, and Design™ (guided) or Drive™ (managed) |
| National authority charges | Any inspection and monitoring charges set by the national programme, confirmed with the authority |
| Facility and equipment | Archive space, environmental control, equipment qualification and calibration, and validation of computerised systems |
| Internal resources | Time for study directors, quality assurance, archivists and management, plus training and procedure writing |
| Software and learning | Included in a Sterling engagement: Effivity for the quality system and Sterling Academy access, with users and access period set in the proposal |
What moves the price
- The range of study types and test systems
- Number of sites, and multi-site study arrangements
- How many computerised systems hold raw data
- An existing ISO/IEC 17025 or ISO 9001 system to build on
What a Sterling proposal always shows
- Deliverables, assumptions and exclusions in writing
- Authority charges identified separately
- Effivity and Academy access itemised at no additional cost
- One all-inclusive proposal, with milestones tied to deliverables
Timeline
How long does OECD GLP compliance take?
Plan in months. The system has to run on real studies, reviewed by quality assurance, before an inspector has anything to examine, and the authority schedules inspections on its own calendar. As an estimate, a facility starting from a working laboratory quality system is typically ready for a first inspection in 9 to 18 months; the proposal sets the figure for your scope.
| Phase | What determines the pace |
|---|---|
| Scope and gap analysis | Access to staff, study files, equipment records and the archive |
| Build and implementation | Procedures to write, roles to appoint, computerised systems to validate, archive works |
| Studies under the system | How soon real studies run under GLP and pass through quality assurance |
| Authority inspection | The national programme's scheduling, the inspection itself and closure of findings |
Your engagement
What your OECD GLP engagement includes
Your engagement follows Sterling OS™. You choose one of two support levels: Design™, where your staff build the system with our guidance and templates, or Drive™, where our consultants manage the work with your people. After the authority's inspection, Sustain™ keeps quality assurance, training and archives current, and Automate™ is Effivity, running the system from the first workshop. Sterling does not inspect, certify or grant GLP status; that is the national authority's role.
Scope, gap analysis and plan
Study types, sites and responsibilities agreed before work starts.
Procedures and study templates
Standard operating procedures, study plan and final report formats built with your staff.
Effivity ISO & GRC software
Documents, training, equipment and findings in one place, included with the engagement at no additional cost.
Training for everyone
Internal auditor training for your quality assurance staff, as applicable to your standard, and preferential Sterling Academy access, including complimentary awareness training for your people as part of the engagement.
Quality assurance review and mock inspection
Conducted or facilitated as agreed, with findings closed before the authority visits.
Inspection readiness and support
Preparation for the national authority's inspection and help responding to its findings.
Compliance monitoring and all decisions remain with the national GLP compliance monitoring authority.
Often combined with
Standards organisations pair with OECD GLP
- 21 CFR Part 11 / EU Annex 1121 CFR Part 11 and Annex 11 compliance for GxP systems: requirements, validation, audit trails and e-signatures, with evidence ready for FDA and EU inspectors.
- ADHICS (Abu Dhabi)ADHICS compliance consulting for DoH-regulated healthcare entities in Abu Dhabi: patient information, systems and devices protected, with audit-ready evidence.
- CAP accreditationCAP accreditation readiness for laboratories: checklist gap analysis, method records, self-inspection and peer inspection support.
- EU IVDR 2017/746EU IVDR compliance consulting for IVD manufacturers: performance evidence, QMS, traceability and post-market follow-up prepared for your notified body.
- EU MDR 2017/745EU MDR compliance consulting for CE marking: QMS, technical documentation, traceability and post-market surveillance prepared for your notified body.
- FDA QMSR (21 CFR 820)FDA QMSR compliance consulting for device makers selling in the US: a quality management system ready for FDA inspection, wherever you manufacture.
Effivity · ISO and GRC software, included in every engagement
How Effivity helps you fulfil, automate and simplify the requirements of the OECD GLP Principles.
Every Sterling GLP engagement includes Effivity, the ISO and GRC automation platform built by the Sterling group and used in 50+ countries. Your consultant configures the workspace within the agreed scope, so procedures, training records, equipment and calibration, audits, nonconformities and management review sit together and the quality system runs in daily laboratory work. Sterling consulting clients get their Effivity subscription included with the engagement, at no additional cost.

Roles, appointments and competence
Management responsibilities, study director appointments and each person's training and job description, kept current as people join or change roles.
Quality assurance inspections and audits
Planned study, facility and process inspections, their findings and responses, reported to management and the study director.
Areas, conditions and maintenance
Facility areas, environmental monitoring and maintenance tasks with owners and dates.
Equipment and calibration
An equipment register with calibration, maintenance and cleaning schedules and records attached.
Item receipt and control
Forms for receipt, storage, use and disposal, adapted to your items without code.
Controlled procedures
Procedures with versions, approvals, distribution and read-and-understood records, so only the current version is in use.
Deviations and corrective action
Deviations and nonconformities raised, investigated and closed with the evidence that the action worked.
Records and review
Controlled records with retention rules, and a management review that records its inputs, decisions and actions.
What this means at the inspection
An inspector asks for training records, equipment histories, current procedures, quality assurance reports and open findings. In Effivity each is a screen with dates, owners and evidence attached, not a folder assembled the week before. After the inspection, Sustain™ runs in the same workspace.
In your engagement
- Subscription included with the engagement, at no additional cost
- Configured by your Sterling consultant within the agreed scope
- Your documents, records and registers migrated, not retyped
- Admin and user training for your team
- Modules for EMS, OHSMS, ISMS, FSMS and more when you integrate other standards
Sterling Academy · e-learning
Train your laboratory staff, not just quality assurance.
Sterling Academy offers video lessons with practice checkpoints, a final exam and a numbered Certificate of Completion for each learner, verifiable online. Sterling consulting clients benefit from preferential Sterling Academy course access and special pricing through their Sterling consultant, including complimentary awareness training for their people as part of the engagement.
- Awareness training for your people, complimentary as part of the engagement
- Internal auditor training for quality assurance staff, as applicable to your standard
- Learner progress and completion records to support your training files
- New staff trained as they arrive
Keep exploring
Explore more about OECD GLP
OECD GLP resources
Services for OECD GLP
Why Sterling
Why choose Sterling for OECD GLP compliance?
GLP projects fail when the procedures describe a laboratory that does not exist. Sterling builds the system around the studies you actually run, with your study directors and quality assurance staff, so the inspector finds practice and paperwork telling the same story.
Regulated laboratories in 60+ countries since 2003
One engagement team accountable across every site and country in your programme.
All-inclusive proposal
Consulting, Effivity, training and Academy access in one proposal, with authority charges shown separately.
Built on what already works
An existing ISO/IEC 17025 or ISO 9001 system is reused where it fits, not duplicated.
Expert and experienced consultants
Laboratory quality specialists who know what an inspector asks to see and prepare your staff to answer.
The Sterling Promise
What the Sterling Promise means for OECD GLP compliance
We stay with you until your agreed OECD GLP outcome is achieved, supporting implementation, preparation and the response to inspection findings, so the investment becomes lasting capability in your laboratory.
The engagement identifies the framework, scope, outcome and responsibilities. Your facility supplies accurate information and puts the agreed controls into use. The national GLP compliance monitoring authority inspects and retains all its decisions. Our commitment covers the agreed support, not the outcome of any future study or regulatory review.
FAQs
Frequently asked questions about OECD GLP
Is ISO/IEC 17025 accreditation the same as GLP compliance?
No. They are separate frameworks with different owners and different routes: GLP governs how individual non-clinical safety studies are organised, recorded and archived and is monitored by a national GLP authority, while ISO/IEC 17025 accreditation recognises a laboratory's competence for defined tests. A laboratory can hold both, and much of one system can support the other.
Which studies have to be run under GLP?
Non-clinical safety studies that a regulatory authority expects to receive under GLP. Which products and study types that covers is set by national rules, so confirm it with the receiving authority and the sponsor before the study plan is signed.
Will a GLP study from our country be accepted abroad?
Often yes, through the OECD's Mutual Acceptance of Data system, where both countries take part and your facility is monitored by a participating national programme. The OECD publishes which national programmes participate; the receiving authority still reviews each study's GLP status.
How does GLP apply to computerised systems and electronic raw data?
The Principles apply to them in full, and the OECD has issued an advisory document, Application of GLP Principles to Computerised Systems, published in 2016. In practice that means validated systems, controlled access, audit trails and archived electronic records.
Does Sterling inspect laboratories or grant GLP status?
No. Sterling prepares your facility. Inspection, monitoring and any statement of compliance belong to the national GLP compliance monitoring authority.
Keep exploring
More on OECD GLP and related standards
More in Healthcare, medical devices & life sciences
Talk to a consultant
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