The implementation of other standards within a facility (cGMP, GCP etc.) should not preclude the use of the OECD GLP Principles within that facility. Most quality standards contain requirements which are compatible with the OECD Principles. Test facility management must ensure, however, that for any GLP studies that are conducted, the OECD GLP Principles are fully adhered to. Sponsors who commission the study with the CRO should also be aware of their role in ensuring that the facility complies with the Principles for GLP.