Good Laboratory Practice (GLP) is an important quality system for organizations conducting non-clinical safety studies. It provides a structured framework for how studies are planned, performed, monitored, recorded, reported, and archived so that the resulting data is reliable, traceable, and suitable for regulatory evaluation.

Among the different GLP frameworks used internationally, the OECD Principles of Good Laboratory Practice have particular importance because they provide an internationally harmonized approach to the quality and integrity of non-clinical safety data.

For laboratory professionals, study directors, quality assurance teams, regulatory specialists, and test facility management, understanding OECD GLP can therefore be an important part of professional development and regulatory readiness.

What Is Good Laboratory Practice?

Good Laboratory Practice is a managerial quality system that establishes requirements for the organization and conditions under which non-clinical safety studies are conducted.

Unlike a laboratory testing method itself, GLP focuses heavily on how a study is organized, controlled, documented, monitored, and reported.

The OECD describes GLP as covering the organizational process and conditions under which studies are planned, performed, monitored, recorded, reported, and retained. Its purpose is to promote the quality and validity of test data used in assessing the safety of chemicals and related products.

This makes GLP particularly relevant to laboratories involved in regulatory non-clinical studies.

What Are OECD Principles of Good Laboratory Practice?

The OECD Principles of Good Laboratory Practice were developed to create a harmonized approach to the quality of non-clinical safety studies.

The principles were initially adopted by the OECD in 1981 and were subsequently revised, with the current principles based on the 1997 revision. They are closely connected with the OECD Mutual Acceptance of Data system, which helps participating countries accept safety data generated according to agreed GLP principles.

The framework is particularly relevant to studies involving the safety of chemical substances and products. Examples include pharmaceutical products, pesticides, cosmetics, veterinary drugs, food and feed additives, and industrial chemicals.

Why Is OECD-Focused GLP Important?

A non-clinical safety study can involve large amounts of data, multiple personnel, specialized equipment, controlled procedures, and extensive documentation.

Without a consistent quality framework, it can become difficult to demonstrate how a study was conducted or whether the resulting information can be trusted.

OECD-focused GLP helps establish controls around areas such as:

• Laboratory organization and responsibilities
• Quality assurance
• Facilities and equipment
• Standard operating procedures
• Test and reference items
• Study planning and conduct
• Raw data and documentation
• Study reporting
• Record retention and archiving

These requirements help make studies more transparent, reproducible, and verifiable.

Key Elements Covered Under OECD GLP

1. Test Facility Organization and Personnel

An effective GLP system begins with clearly defined responsibilities.

Management, study directors, study personnel, and quality assurance personnel each have specific responsibilities within the GLP framework. Clearly defined roles help prevent confusion and support appropriate oversight throughout a study.

Personnel should also have the appropriate qualifications, experience, and training for their assigned responsibilities.

2. Quality Assurance Programme

Quality assurance is a central component of GLP.

The QA function provides independent oversight of GLP activities and helps determine whether studies and facility operations are being conducted according to applicable requirements.

QA activities may include inspections, reviews, and reporting of observations to appropriate management and study personnel.

OECD guidance specifically addresses quality assurance programmes as an important part of maintaining GLP compliance.

3. Facilities and Equipment

Facilities used for GLP studies need to be appropriate for the work being performed.

This includes considerations such as suitable laboratory areas, storage areas, controlled environments where necessary, equipment maintenance, cleaning, and calibration.

The OECD GLP framework covers the suitability of facilities and equipment because inadequate conditions can affect the quality and reliability of study results.

4. Standard Operating Procedures

Standard Operating Procedures, commonly known as SOPs, provide documented instructions for routine laboratory activities.

Well-controlled SOPs help ensure that important processes are performed consistently and that personnel understand the approved way of carrying out their responsibilities.

GLP also requires appropriate documentation of study activities and procedures, making SOP management an important part of the overall quality system.

5. Study Planning and Conduct

GLP does not simply focus on the final laboratory report. Controls are applied throughout the study lifecycle.

Study planning, protocols, procedures, observations, measurements, deviations, and other relevant information need to be appropriately documented.

This creates a traceable record showing how the study progressed and how the final conclusions were reached.

6. Data Integrity and Documentation

Reliable data is one of the most important outcomes of a GLP system.

Laboratory personnel must maintain appropriate records of study activities and preserve the information needed to reconstruct the study.

This is becoming even more important as laboratories increasingly rely on computerized systems and electronic records. The OECD published a position paper in 2024 specifically addressing IT security considerations for GLP data and computerized environments.

7. Reporting and Archiving

A GLP study does not end when laboratory testing is completed.

Study results must be appropriately reported, and relevant records and materials must be retained in suitable archives.

Proper archiving allows information to be retrieved when required and supports the traceability and reconstruction of studies.

OECD GLP and Regulatory Compliance

One of the major reasons organizations pay close attention to OECD GLP is its relationship with regulatory submissions and international acceptance of safety data.

The OECD framework was developed partly to support international harmonization and reduce unnecessary duplication of testing. Under the Mutual Acceptance of Data system, appropriately generated data can be accepted across participating countries, helping reduce repeated studies and associated costs.

However, GLP compliance should not be viewed as simply obtaining a certificate or completing a checklist. It involves implementing appropriate systems and controls throughout the test facility and study lifecycle.

Who Should Take Good Laboratory Practices (OECD Focused) Training?

OECD-focused GLP training can be useful for professionals whose responsibilities involve non-clinical laboratory studies and quality systems.

Relevant professionals may include:

• Laboratory technicians and study personnel
• Study directors and principal investigators
• Quality assurance professionals
• Test facility management
• Regulatory affairs specialists
• Sponsors
• Laboratory supervisors
• Professionals entering pharmaceutical, chemical, pesticide, or biotechnology organizations

The appropriate training level will depend on the learner’s responsibilities and previous experience.

What Can You Learn in an OECD-Focused GLP Course?

A well-structured Good Laboratory Practices (OECD Focused) course should go beyond simply explaining the definition of GLP.

Professionals can expect to develop knowledge around the major elements of the OECD framework, including organizational responsibilities, quality assurance, facilities, equipment, SOPs, study conduct, documentation, data integrity, reporting, and archival management.

The goal is to help participants understand how OECD GLP principles translate into practical laboratory activities.

For example, rather than only learning that records must be maintained, learners should understand why traceability matters and how appropriate documentation supports study reconstruction and regulatory confidence.

Good Laboratory Practices (OECD Focused) Training from GxP Trainings

GxP Trainings provides Good Laboratory Practices (OECD Focused) training designed around the OECD Principles of GLP.

The course provides an in-depth examination of the OECD GLP principles and addresses areas including organizational responsibilities, quality assurance, study conduct, data integrity, and archival management. It is designed for professionals in pharmaceutical, chemical, biotechnology, and related sectors.

The program is self-paced and includes a certificate with a verifiable ID, according to the GxP Trainings course information. The course is also designed to help professionals understand how GLP supports reliable and reproducible non-clinical safety data and international regulatory expectations.

This makes the training relevant for both professionals looking to strengthen their existing GLP knowledge and those who need a structured introduction to OECD-focused laboratory practices.

Why Choose OECD-Focused GLP Training?

The biggest advantage of focused training is that professionals can study the GLP framework in a structured manner rather than trying to understand individual requirements separately.

A good course can help connect:

OECD Principles → Laboratory Responsibilities → Quality Assurance → Study Conduct → Data Integrity → Reporting → Archiving → Regulatory Confidence

This broader understanding is particularly useful for professionals who work across different functions within a non-clinical testing environment.

It can also support organizations that want their personnel to develop a common understanding of GLP expectations.

OECD GLP vs FDA-Focused GLP Training

It is important to understand that GLP requirements can be addressed through different regulatory frameworks.

For example, the U.S. FDA regulates non-clinical laboratory studies under 21 CFR Part 58, while OECD GLP provides an internationally harmonized framework used across participating jurisdictions.

Therefore, professionals should choose training based on the regulatory environment and responsibilities relevant to their work.

GxP Trainings provides both Good Laboratory Practices (OECD Focused) and FDA-focused GLP training options, allowing learners to select a program aligned with their intended regulatory focus.

Conclusion

Good Laboratory Practice is fundamental to maintaining the quality, reliability, traceability, and integrity of non-clinical safety studies. The OECD Principles of Good Laboratory Practice provide an internationally harmonized framework covering organizational responsibilities, quality assurance, facilities, equipment, SOPs, study conduct, documentation, reporting, and archiving.

For professionals working in pharmaceutical, chemical, biotechnology, and other regulated laboratory environments, understanding these principles can strengthen both technical knowledge and regulatory awareness.

Good Laboratory Practices (OECD Focused) training provides a structured way to develop this knowledge. With its focus on the OECD GLP framework and practical areas of laboratory quality management, the training offered by GxP Trainings can help professionals build a stronger foundation for working within GLP-regulated environments.

Frequently Asked Questions

What is OECD GLP?

OECD GLP is an internationally harmonized quality system for the organization and conduct of non-clinical safety studies. It covers areas such as personnel, facilities, quality assurance, study conduct, documentation, reporting, and archiving.

Who needs OECD GLP training?

Laboratory personnel, study directors, QA professionals, test facility management, regulatory professionals, sponsors, and others involved in non-clinical safety studies can benefit from OECD-focused GLP training.

What is the difference between OECD GLP and FDA GLP?

OECD GLP provides an internationally harmonized framework, while FDA GLP requirements for non-clinical laboratory studies are primarily established under 21 CFR Part 58. The appropriate training depends on the regulatory requirements relevant to the professional or organization.

Does GxP Trainings provide OECD-focused GLP training?

Yes. GxP Trainings provides a Good Laboratory Practices (OECD Focused) course covering key OECD GLP principles, including organizational responsibilities, quality assurance, study conduct, data integrity, and archival management.

Why is data integrity important in GLP?

Data integrity helps ensure that study information remains reliable, traceable, and suitable for reconstruction and regulatory review. This is particularly important as GLP data increasingly relies on computerized systems and electronic records.