This is the complete set of the series on OECD Principles of Good Laboratory Practice (GLP) which set the quality standards for the organisation and management of test facilities and for performing and reporting studies related to the safety of chemical substances and preparations. The GLP Principles cover all aspects of a laboratory’s daily activity, such as the layout of testing and storage areas to prevent contamination, cleaning and calibration of equipment, handling of test animals, and recording and archiving of test results. The GLP Principles thereby help ensure that studies submitted to regulatory authorities, to notify or register chemicals, are of sufficient quality and rigour and are verifiable.