Good Laboratory Practice (GLP)


The OECD Principles of Good Laboratory Practice (GLP) ensure the generation of high quality and reliable test data related to the safety of industrial chemical substances and preparations. The principles have been created in the context of harmonising testing procedures for the Mutual Acceptance of Data (MAD).

What's New

  • February 2018: New Frequently Asked Questions.  This webpage gives information about a series of Frequently Asked Questions (FAQ) raised by testing laboratories about implementation of GLP, along with responses prepared by the OECD Working Group on GLP.  This webpage, which was launched in 2014, has now been updated four times.  The latest FAQs added to the site concern issues related to: sponsors, Contract Research Organisations (CROs), sub-contractors, archives, Information Technology (IT), Biotechnology/GMOs, and other miscellaneous issues.



Important links


Guidance Documents for GLP and Compliance Monitoring



Related Documents