The Organisation for Economic Co-operation and Development (OECD) is an international organisation that works to put in place better policies for a better life. The aim is to promote public policies that promote prosperity, equal opportunities and well-being for all. 

Testing of chemicals requires a lot of human resources and is costly. The same chemical can often be tested and evaluated in several countries. To address the need to alleviate some of this burden, the OECD Council adopted a decision in 1981, stipulating that data generated in one member country, in accordance with the OECD Guidelines and Principles of Good Laboratory Practice (GLP), should be accepted in other member countries for assessment and for any other use relating to the protection of human health and the environment.

For example, OECD member countries and members of the Mutual Data Acceptance System (MDS), described in Council Decision C(81)30), agreed that safety tests on chemicals (including veterinary medicinal products) carried out in one of these countries should be accepted in other OECD countries for evaluation purposes. These tests must be conducted in accordance with the OECD Guidelines and the Guidelines of Good Laboratory Practice (GLP). Since the purpose of GLP is to ensure the quality, reproducibility and integrity of the data generated for regulatory purposes, this international recognition makes it possible to limit the reproduction of equivalent studies and to reduce the use of laboratory animals.

The list of countries acceding to the AMD can be found on the OECD website.

France is a member of the OECD. Anses-ANMV as the supervisory authority for veterinary medicinal products participates in the OECD GLP Working Group which, inter alia, develops guidelines or consensus documents on the interpretation of the GLP principles, evaluates applications from new AMD members and national GLP compliance monitoring programmes.
OECD documents are available here.