Oct-03-2025
On 16 September 2025, the UK
Health and Safety Executive (HSE) released the seventh edition of the Great
Britain (GB) Mandatory Classification and Labelling (MCL) list. This latest
update introduces new and revised mandatory classifications for 30 hazardous
substances, based on the fifth GB CLP Agency recommendation formally agreed by
Ministers in September 2025.
The changes were first notified
to the World Trade Organization (WTO) under reference G/TBT/N/GBR/101
on 7 April 2025, giving stakeholders the opportunity to review and comment on
the proposal.
Background on the GB MCL
The GB MCL list is a legally
binding register of classifications maintained by HSE under the GB CLP
Regulation. It provides a consistent framework for the classification and
labelling of substances and mixtures across Great Britain (England, Scotland,
and Wales). The list underpins regulatory obligations for manufacturers,
importers, downstream users, and distributors, ensuring accurate hazard
communication and supporting the protection of human health and the
environment.
The GB MCL is updated on a
regular basis to reflect scientific advances, regulatory decisions, and
international developments. Updates may involve the addition of new substances,
changes to existing classifications, and editorial improvements to ensure clarity
and accuracy.
Key Highlights of the 7th
Edition
Next Steps for Stakeholders
Stakeholders should review the
updated list and prepare for the transition period ahead of the 2028 compliance
deadline. The GB MCL list and the HSE GB CLP Publication Table here
provide detailed information on the updated entries, including the Agency
Opinions supporting each classification.
Sep-30-2025
The UK Health and Safety
Executive (HSE) has launched a six-month public consultation on a proposed
restriction of per- and polyfluoroalkyl substances (PFAS) in firefighting foams
under UK REACH. The consultation will run until 18 February 2026.
Scope of the Proposal
The restriction targets PFAS used
in firefighting foams, covering their manufacture, placing on the market, use,
storage, and disposal. PFAS are defined to include substances containing at
least one fully fluorinated carbon atom (-CF₂ or -CF₃) without hydrogen,
chlorine, bromine, or iodine substituents. The proposal includes transition
periods tailored to sectors to allow operators time to adopt PFAS-free alternatives.
Risks and Rationale
According to the Annex 15
restriction dossier, PFAS in firefighting foams present significant threats to
human health and the environment. Their persistence, mobility, and potential
for bioaccumulation mean that existing controls are insufficient to protect
against exposure. Firefighting foams are highlighted as a key source of PFAS
emissions, especially via runoff into soil and water systems when used
outdoors.
Next Steps
Once the consultation closes, the
HSE will review stakeholder submissions and issue its final opinion. That
opinion will be forwarded to the Secretary of State for Environment, Food &
Rural Affairs and to the devolved administrations for a decision.
The consultation documents,
including the full Annex 15 dossier, are available on the HSE site here
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