The OECD Test Guidelines are a collection of the most relevant internationally agreed test methods used by government, industry and independent laboratories to determine the safety of chemicals and chemical preparations, including pesticides and industrial chemicals. They cover tests for the physical-chemical properties of chemicals (section 1), environmental effects (section 2), degradation and accumulation in the environment (section 3), human health effects (section 4), and other areas (section 5 for Test Guidelines which do not fall within the four sections).
Section 1: Physical Chemical Properties
Section 2: Effects on Biotic Systems
English; French (SOFTWARE FOR TG 223)
Section 3: Degradation and Accumulation
Section 4: Health Effects
English; French (SOFTWARE FOR TG 455, TG 432 AND TG 425)
Section 5: Other Test Guidelines
List of Adopted Test Guidelines (including dates of revisions) in English and French and List of TG Addenda adopted by Council
How to obtain draft Test Guidelines
Adopted Guidance and Review Documents
Draft Guidance and Review Documents
Test Guidelines that have been deleted or replaced by updated versions
These obsolete Test Guidelines should not be used for new testing. They are included here because it may be useful to consult them in the framework of the assessment of substances based on old study reports. The guaranties of Mutual Acceptance of Data (MAD) would not apply if these Test Guidelines were used for new testing.
Section 1 (English)
Section 2 (English)
Section 3 (English)
Section 4 (English)
In November 2012, the Joint Meeting of the Chemicals Committee and Working Party on Chemicals, Pesticides and Biotechnology decided on a transition period of 18 months, between the council decision and the effective deletion, for Test Guidelines that have been updated or deleted in order to allow national/regional regulations that make reference to specific Test Guidelines and versions to be updated accordingly. Please see the following slides for more information: Presentation
Terminology in OECD Test Guidelines to designate what is tested
The Joint Meeting at its 50th meeting in June 2013 agreed that in the future, as far as possible, a more consistent use of the term “test chemical” describing what is being tested should be applied in new and updated Test Guidelines. However, this decision is without prejudice to previously adopted OECD Test Guidelines, which have used the terms "test item", "test compound", "test substance" or other similar term to describe what is being tested.”
The intention of this proposal is not to provide a new definition of the term “chemical(s)”, but rather to be consistent with the UN definition of it when applicable, i.e. in Test Guidelines that make reference to the UN GHS for Classification and Labelling where “chemical” means “substance and mixture”.
Material Transfer Agreement (MTA): Test Guidelines with components covered by MTA
Development of Test Guidelines for in vitro methods is increasing. For most of these in vitro test methods, a Material Transfer Agreement (MTA) is required with respect to the cell line or other proprietary components of the test method. An MTA is generally signed between a provider and a recipient/user. It may include a number of terms and conditions.
MTAs may be necessary to obtain components to conduct testing according to some Test Guidelines; however, they should not include terms or conditions that would prevent or limit availability of cell lines or other components of these Test Guidelines. It is essential that the MTAs:
1. Allow the use of the MTA-covered components for testing in member countries for purposes of assessment and other uses relating to the protection of man and the environment.
2. Allow commercial contract laboratories to access the MTA-covered components for the purposes given under point 1.
Furthermore, MTAs should ideally refer to the Test Guidelines concerned to avoid any doubts whether users of the OECD Test Guidelines can obtain the MTA-covered components.
Example test guideline material transfer agreement (MTA) template
Disclaimer: Any MTA is an agreement between the cell bank (provider) owning the biological materials concerned and the recipient of such materials. Therefore, the OECD shall have no responsibility hereto.b
Sharing chemical test results and assessments saves €150 million annually, says OECD
Mutual Acceptance of Data (MAD)