Welcome to Talia Neal-Walthall
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Welcome to Talia Neal-Walthall

We are pleased to welcome Talia Neal-Walthall to ECETOC as a secondee. Talia joins us to work on topics related to exposure, an area central to much of our current scientific programme. She will be wi...
September 2026 news from the Sec Gen
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September 2026 news from the Sec Gen

Dear members and colleagues,As we move through the year, there is a good deal to share. This has been a busy period for ECETOC, with changes to our team, our governance, and the work ahead. Let me...
HSSD Tool

HSSD Tool

This software was developed by a consortium of partners to facilitate the uptake of novel approaches to estimate aquatic threshold concentrations (e.g. the concentration at which 5% of the species are exposed above their EC50, HC5).
The Human Exposure Assessment Tools Database (heatDB)

The Human Exposure Assessment Tools Database (heatDB)

heatdb is a public directory of exposure data sources as well as available tools for exposure
NanoApp

NanoApp

ECETOC’s NanoApp is a tool designed to define the boundaries of sets of similar nanoforms and to generate a justification for the REACH registration.
Targeted Risk Assessment (TRA)

Targeted Risk Assessment (TRA)

The Targeted Risk Assessment (TRA) estimates exposures to workers, consumers and the environment that arise during a series of events.
TRA Task Force – Worker branch

TRA Task Force – Worker branch

Why? The Worker TRA Task Force has been active since 2019, delivering projects that advance the scientific basis of the Worker Targeted Risk Assessment (TRA) tool. Its overarching objective is to e...
Immunotoxicity assessment: Addressing Challenges and Advancing Methodologies [Workshop → Task Force]​

Immunotoxicity assessment: Addressing Challenges and Advancing Methodologies [Workshop → Task Force]​

Why?Regulatory assessment of immunotoxic properties of chemicals is a complex and challenging task​ Limited regulatory guidance exists​ Lack of industry and regulatory knowledge​...
Chronic fish case studies towards an IATA

Chronic fish case studies towards an IATA

Why?Hazard and safety assessments for the pelagic compartment often rely on in vivo studies using a single fish species, raising ethical concerns and uncertainty in terms of extrapolation....
Task Force
11.06.2014

Guidance for classification of reproductive toxicants under GHS

Health Sciences Manager Christa Hennes

Administrative Assistant Christine Yannakas

Background

The Globally Harmonised System of Classification and Labelling of Chemicals (GHS) has been introduced into the EU legislative framework under CLP Regulation No. 1272/2008. It is replacing the current guidelines under the Directives 67/548/EEC and 1999/45/EC. Regulatory authorities worldwide are beginning to use the GHS criteria and it is already being noticed that their interpretation varies in different parts of the world.

ECETOC recently published guidance for the classification of chemicals with regard to the endpoint of carcinogenicity, which incorporated the concept of potency. This guidance has been well received. Building on the approach for carcinogenicity, it is recommendable to develop guidance for the application of the GHS criteria to reproductive toxicity, whilst recognising the differences between reproductive toxicity and carcinogenicity. Many chemicals which have not yet been assessed for their potential in this area will be tested under REACH, and cut-off criteria currently applied to agrochemicals may be applied to other categories of chemicals. It is important that industry has a clear position to contribute to the way chemicals are classified for reproductive toxicity.

Related publication

Article: Guidance for the classification of carcinogens under the globally harmonised system of classification and labelling of chemicals (GHS). March 2010. McGregor D, Boobis A, Binaglia M, Botham P, Hoffstadt L, Hubbard S, Petry T, Riley A, Schwartz D, Hennes EC. Critical Reviews in Toxicology 40, 3, 245-285. - doi:10.3109/10408440903384717 corrigendum note to above article: doi:10.3109/10408444.2010.511521