Good Laboratory Practice

Health and environmental safety data are required for the registration of a wide range of product types and product registration is usually sought in more than one country.

In 1981, the Organisation for Economic Co-operation and Development (OECD) principles of Good Laboratory Practice (GLP) were finalised and led to the OECD Council Decision on the Mutual Acceptance of Data (MAD) which states that “Data generated in the testing of chemicals in an OECD member country in accordance with OECD Test Guidelines and OECD principles of Good Laboratory Practice shall be accepted in other member countries for purposes of assessment and other uses relating to the protection of man and the environment”.

At a meeting in 1983, concerning the mutual recognition of compliance with GLP, the OECD recommended that implementation of GLP compliance should be verified by laboratory inspections and study audits.

The European Commission (EC) later ratified the OECD principles and a number of Directives stipulate that tests must be carried out to the principles of GLP and also that EC Member States must incorporate into their laws the requirement for all non-clinical safety studies to be conducted in compliance with GLP, and that premises conducting such studies must be inspected by a national authority.

Consequently, on 1 April 1997 there came into force in the UK a Statutory Instrument (SI) entitled 'The Good Laboratory Practice Regulations 1997' which superseded the existing voluntary United Kingdom Good Laboratory Practice Compliance programme.

In 1998, the OECD issued the revised Principles of GLP and Compliance Monitoring. These were adopted by the EC in October 1998 and issued as Directives 1999/11/EC and 1999/12/EC which amended the existing directives which were 87/18/EEC and 88/320/EEC. Consequently, in 1999, the UK Regulations were also updated by SI 3106, as amended by SI 994, 2004, and are accompanied by a guide that interprets them and explains how compliance will be verified.

Since publication of the UK regulations the original EU Directives have been replaced by the codified directives 2004/9/EC which relates to inspection of facilities and verification of GLP compliance, and 2004/10/EC which describes the principles themselves.

News and hot topics

Man on computer
This section includes all the latest news and hot topics relating to Good Laboratory Practice.
The unwanted display of the text is removed here...dont delete this

The UK GLP Compliance Monitoring Programme

Hand writing on a clipboard
The UK GLP Compliance Monitoring Programme is the mechanism whereby the GLP compliance of test facilities that conduct regulatory studies is assessed and monitored. In simple terms, test facilities are subject to inspections by the Good Laboratory Practice Monitoring Authority (GLPMA), the government body charged with enforcing the GLP Regulations.
The unwanted display of the text is removed here...dont delete this

Risk-based inspections

Inspectors examining data
This section provides information about risk-based inspections, why the MHRA is now using this method of inspection and how they work.
The unwanted display of the text is removed here...dont delete this

Useful links

Hands typing on a keyboard
This page provides links to organisations relevant to good Laboratory Practice.
The unwanted display of the text is removed here...dont delete this


Laboratory technicians
This page provides information about Good Laboratory Practice and the legislation that governs it.

The inspection process

Inspectors in a lab
This section outlines the Good Laboratory Practice inspection process and gives details of the types of inspections and how they are carried out.

Guidance and legislation

Law books
This section provides information and guidance on regulation relating to Good Manufacturing Practice.

Frequently asked questions

Raised hand
This section provides answers to frequently asked questions relating to Good Laboratory Practice.
Page last modified: 12 July 2011