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CHCS Chemical Hazards Communication Society Promoting the awareness of chemical hazards & improvements in their identification & communication
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CHEMICAL HAZARDS communication society - chcs

CHCS aims to provide information and training guidance to as many individuals as possible, regardless of whether they work in small or large companies, for associations or for government, involved with the ever increasing complexity of chemical hazards regulations and international codes.

Our Aims

The Chemical Hazards Communication Society (CHCS) aims are to:

  • promote greater awareness of chemical hazards and hazard identification, and to improve hazard communication within supply chains, such as classification for supply and transport, clear labelling and accurate and understandable Safety Data Sheets

  • provide a forum for sharing experiences, views and information on chemical hazards

  • register members, especially those active in general or specialist areas

  • improve competency, set competency standards and promote the need for training specific to this aim

  • make information available to members and other relevant bodies






CHCS News

CHCS' September 2025 Newsletter is now available, containing several important updates on the many recent changes to the regulation framework. See CHCS September 2025 Newsletter [Posted on 16 September 2025]

CHCS 31st AGM and 14th Annual Lectures
CHCS are delighted to announce the CHCS 31st AGM and 14th Annual Lectures will take place online on Tuesday 18th November 2025. CHCS members can find out more information and register for the AGM on the Events page of the website. [Posted on 11 September 25]

Update on the Annulment of the Classification of Titanium Dioxide in the EU
Some good news on the regulatory front, with news of updates to the ECHA website following the Court of Justice Decision to uphold the annulment of the classification of Titanium Dioxide in the EU. CHCS members can read more on our News Briefings page. [Posted on 8 September 2025]

New CHCS Webinar: EU CLP - All Change 2025, Part II
CHCS have prepared a pre-recorded video detailing the current state of play with the EU CLP Regulation. A live Panel Session will follow on 16th September. CHCS members can register for the webinar on the Events page of the website. [Posted on 7 September 25]

DEFRA Consultation on Extending the UK REACH Transitional Registration Submission Deadlines (closes 8th September)DEFRA is seeking views from stakeholders on the government’s proposals to extend the UK REACH transitional registration submission deadlines. The existing deadlines are October 2026, October 2028 and October 2030. CHCS members can read more on our News Briefings page. [Posted on 9 July 2025]

European Commission update on the simplification of CLP, Cosmetics and Fertilisers Regulations
This morning, CHCS posted a news item on the topic of the enforcement approach to be taken by the Health and Safety Executive, on changes resulting from revisions to the European Union (EU) CLP Regulation covering trade between Great Britain (GB) and Northern Ireland (NI). CHCS members can read more on our News Briefings page. [Posted on 9 July 2025]

23rd ATP to CLP published
The 23rd Adaptation to Technical Progress (ATP) to the Regulation on the classification, labelling and packaging of substances and mixtures (CLP) has been published. CHCS members can read more on our News Briefings page. [Posted on 26 June 2025]

HSE public consultation: chemicals legislative reform – BPR, CLP and PIC
The Health and Safety Executive (HSE) has issued a public consultation on chemicals legislative reform, with proposals for changes to HSE-led chemical policy. CHCS members can read more on our News Briefings page. [Posted on 23 June 2025]

CHCS Webinar: Chemical Regulation, Latin America
CHCS have now published the slides and recording from the Chemical Regulation, Latin America Webinar. CHCS members can access this on the Past Events page of the website. [Posted on 6 June 25]

Windsor Framework Democratic Scrutiny Committee seeks views on EU proposal to update legislation governing detergents and surfactants
The Windsor Framework Democratic Scrutiny Committee (DSC) is seeking views from stakeholders on the Proposal for a Regulation on detergents and surfactants amending Regulation (EU) 2019/1020 and repealing Regulation (EC) No. 648/2004. CHCS members can read more on our News Briefings page. [Posted on 9 May 2025]

Drug precursors 4-piperidone and 1-boc-4-piperidone added to the list of scheduled substances
The European Commission has notified a draft Delegated Regulation to the World Trade Organisation, Technical Barriers to Trade Committee, updating Regulation (EC) No. 111/2005. CHCS members can read more on our News Briefings page. [Posted on 11 April 2025]

Defra Call for comments: Draft Risk Profile of substances proposed as POPs
The Department for Environment, Food and Rural Affairs (Defra) is consulting on group of chemical substances proposed as persistent organic pollutant (POPs) to the United Nations, POPs Review Committee. CHCS members can read more on our News Briefings page. [Posted on 7 April 2025]

Another turnaround on the classification of titanium dioxide
On 06 February this year, the Advocate General Ćapeta of the European Union Court, delivered an Opinion on the appeal regarding the carcinogenic classification of titanium dioxide, supporting the European Commission and the French government. CHCS members can read more on our News Briefings page [Posted on 14 March 2025]

TSCA Inventory updated
In January 2025, the United States Environmental Protection Agency (EPA) updated the Toxic Substances Control Act (TSCA) inventory. CHCS members can read more on our News Briefings page [Posted on 11 March 2025]

Endocrine Disruptors - 1st CHCS Video

We have produced our first video for members: "Endocrine Disruptors", which is available to members free-of-charge.

This introductory video explains the various components of the human endocrine system and how they interact, to help understand the mechanisms of endocrine disruptors on human systems.

The video is just over 10 minutes long.

For access to the video, please visit: Endocrine Disruptors Video.

[Posted on 1 July 2019]

CHCS News Summary

  • European Commission publishes updated version of the unofficial consolidated text of the CLP Regulation (6 February 2025)

  • UK Government does not pull the Stormont Brake over the EU CLP Amendment (23 January 2025)

  • DEFRA launches Circular Economy Taskforce (14 January 2025)

  • Microplastics restriction: Consultation closing on the proposal for the implementation of the reporting requirements (13 January 2025)

  • EU Notifies draft regulation to the WTO updating REACH to restrict substances classified as CMR (31 December 2024)

  • UK notifies update to the WTO on the Producer Responsibility Obligations (Packaging and Packaging Waste) Regulations 2024 (30 October 2024)

  • HSE publishes another batch of GB MCL Opinions and technical reports (23 October 2024)

  • UK REACH authorisation decisions (21 October 2024)

  • Update to the GB Cosmetics Regulation notified to the WTO-TBT (16 October 2024)

  • European Council adopts revision to the EU CLP Regulation (15 October 2024)

  • Guidance from the Government: What to do in a chemical emergency (14 October 2024)

  • HSE Article 37A consultations (10 October 2024)

  • European Commission decision to restrict undecafluorohexanoic acid (PFHxA) and PFHxA‑related substances (9 October 2024)

  • DGSA Survey (7 October 2024)

  • 22nd ATP to CLP published (3 October 2024)

  • 23rd ATP sent to WTO (2 October 2024)

                  CHCS Members can read these News items, and older posts, on the CHCS News Briefings page.

                  Next 3 CHCS Training Courses:

                  For a full list of our CHCS Training Courses, please visit our Training page. 

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                  HOW TO JOIN CHCS

                  CHCS Membership is open to any person with an interest in chemical hazard communications. You can join by completing the simple on-line form at Join CHCS.

                  Contact CHCS

                  • General, membership, events, training, invoices, payments, etc. enquiries:

                    enquiries@chcs.org.uk, tel: + 44 (0) 333 210 2427

                  See full CHCS Contact Details.

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