On 17 August 2026 the European Commission notified the World Trade Organization of a draft delegated regulation that would update the EU CLP Regulation, Regulation (EC) No 1272/2008, to reflect recent revisions of the United Nations Globally Harmonized System of Classification and Labelling of Chemicals.

The draft incorporates the changes introduced by GHS revisions eight, nine and ten, and in addition brings forward selected provisions from revision 11 covering aerosols and skin sensitising mixtures. For suppliers, formulators and distributors on the EU market, this is the point at which a set of technical UN amendments becomes a dated and plannable compliance project.

Why CLP keeps being amended

The GHS is not a piece of legislation. It is a UN recommendation, updated roughly every two years by the Sub Committee of Experts to reflect developments in the science of hazard assessment and in the practice of hazard communication. Adoption is voluntary, which means that each jurisdiction decides how much of the system to implement, for which sectors, and on the basis of which revision.

That is why the same product can carry different labels in different markets even where the underlying data are identical. The EU implements the GHS through CLP and keeps it current through periodic adaptations to technical progress. The present draft is one of those alignment exercises, and it is a comparatively large one because it covers three full revisions at once.

What the draft would change

According to the Commission, GHS revisions eight to ten bring several updates that the EU now proposes to write into CLP.

1. New classification criteria, guidance and hazard communication requirements for chemicals under pressure, that is, chemicals packaged in a pressurised container. This closes a gap between gases under pressure on the one hand and aerosol dispensers on the other, and it captures products that sit between the two.
2. Revised precautionary statements, reworked with the aim of making them easier to understand and more usable in practice. Precautionary statements are the P statements on the label and in section 2 of the safety data sheet, so a revision here has an unusually wide reach across a portfolio.
3. Updates to precautionary pictograms, the symbols used alongside precautionary information.
4. New guidance on dust explosion hazards, which is relevant for anyone handling or supplying combustible powders and granulates.
5. Updated references to OECD test guidelines, which determine which methods are considered appropriate when generating or evaluating data for classification.

From GHS revision 11, the Commission proposes to implement two elements now rather than later, namely the provisions on aerosols and those on skin sensitising mixtures. The stated reasoning is practical. Implementing them in this act provides greater legal certainty and avoids having to revise the same CLP provisions again in the near future. The remainder of revision 11 is expected to be implemented at a later stage.

Chemicals under pressure, the change with the sharpest edge

Of everything in the draft, the new hazard class for chemicals under pressure is the one most likely to move a product into a classification it has never held. The class covers liquids or solids, or mixtures of them, that are pressurised with a gas in a container, and it is distinct from the existing aerosol rules and from the gases under pressure class.

In practical terms, products such as pressurised dispensers that are not aerosol dispensers, certain foam and sealant systems, and some cleaning or maintenance products delivered from a pressurised container may need to be reviewed against the new criteria. The consequences of a positive classification are the familiar ones, namely a hazard statement, a signal word, a pictogram and the corresponding precautionary statements, and a revised safety data sheet.

Precautionary statements, the change with the widest reach

The revision of precautionary statements will not usually change whether a product is hazardous. It will change what is printed on it. Because precautionary statements are selected on the basis of the classification and then appear on every affected label, a revision of the statement catalogue means a systematic review of label text across the portfolio.

Companies that maintain their labels in a classification system with a current statement catalogue will experience this as a software update followed by a reprint cycle. Companies that maintain label text manually, or in artwork files held by a design agency, will experience it as a project.

Timeline

1. Notification to the WTO on 17 August 2026, which opened the formal comment period.
2. Comment deadline on 16 October 2026. This is the window for technical and practical feedback, including on the workability of the new criteria and the wording of the revised statements.
3. Planned adoption in the fourth quarter of 2026.
4. Entry into force 20 days after publication in the Official Journal of the European Union.
5. General application of the new requirements 24 months after entry into force, with the option for suppliers to apply the updated classification and labelling provisions earlier on a voluntary basis.
6. Extended transition for substances and mixtures already classified and labelled under the existing rules and placed on the market before the new requirements apply. These products would not need to comply until 48 months after entry into force.

The two tier transition is helpful and easy to misread. The 48 month period applies to stock already on the market, not to everything a company continues to produce. New production and new placings on the market fall under the 24 month date.

What this means in practice

1. Classification review, focused on the new chemicals under pressure criteria and on the revised provisions for aerosols and skin sensitising mixtures. For most portfolios this is a screening exercise with a small number of genuine hits.
2. Label content, where the revised precautionary statements and precautionary pictograms will require a systematic update of label text rather than a case by case fix.
3. Safety data sheets, where sections 2 and 15 in particular will need revision, along with any downstream documents that quote them.
4. Artwork and packaging stock, where the lead times of printing suppliers and the volume of existing labels usually determine when the change has to start, not when it has to end.
5. Data and test methods, where the updated OECD references matter mainly for substances whose classification is currently supported by older studies or by a read across argument.
6. Powder handling, where the new dust explosion guidance should be read alongside existing ATEX and workplace safety assessments rather than in isolation.

Recommended next steps

1. Screen the portfolio for products supplied in pressurised containers and check them against the proposed chemicals under pressure criteria, including products that are currently treated as aerosols and products that are currently treated as ordinary liquids in a dispenser.
2. Review mixtures classified for skin sensitisation, or close to the threshold, against the revision 11 provisions the Commission proposes to bring forward.
3. Ask your classification and labelling software provider when the revised precautionary statement catalogue will be available, and plan the reprint cycle around that date.
4. Estimate the label and artwork volume affected, and compare it with your normal packaging turnover, so that stock is used up rather than written off.
5. Decide whether to comment by 16 October 2026, directly or through an industry association, particularly where the new criteria create practical difficulties you can evidence.
6. Check whether third country markets served from the same production line are on the same GHS revision, and record deliberately where they are not.
7. Build the change into the normal product release and change control process, with a single owner for the precautionary statement update.

Our assessment

This draft is less dramatic than a new harmonised classification and more work than it looks. Nothing here is designed to remove products from the market. The chemicals under pressure class will affect a limited number of product types, and companies supplying them will generally know who they are. The revised precautionary statements, by contrast, touch almost every label, which is exactly the kind of change that gets postponed because no single product looks urgent.

The comment deadline of 16 October 2026 is the near term date. The 24 month application date, counted from a publication that has not happened yet, is the one that determines the workload. Two years is a comfortable period for a portfolio wide label update, and an uncomfortable one if the first six months are spent deciding who owns it.

If you would like support in screening your portfolio against the proposed criteria, in assessing the impact of the revised precautionary statements on your labels, or in preparing a comment before 16 October, we are happy to help.