The European chemical industry is entering a period of major regulatory shift, with the aim of making the management of substances and mixtures safer, more transparent, and more sustainable. One of the most significant developments in recent months is the introduction of the “stop-the-clock” mechanism under the CLP Regulation.
This mechanism reschedules certain key deadlines, giving companies more time to adapt to new rules that came into work at the end of 2024.
In this article we are explaining what “stop-the-clock” means, why it was introduced, its implications, and how to prepare for its full implementation by 2028.
What is the “stop-the-clock” mechanism?
“Stop-the-clock” is a regulatory measure adopted by the Council of the European Union on September 24, 2025, as part of “Omnibus VI” legislative package. Officially, it suspends, or delays, deadlines linked with the implementation of new CLP provisions, within the broader framework of EU chemical legislation.
Basically, the mechanism temporarily pauses the obligation to comply with specific requirements introduced by the amended CLP Regulation (Reg. EU 2024/2865), shifting several enforcement dates from the 2025-2027 period to January 1, 2028.
The goal is to allow more adaptation time for economic operators and ensure a smoother transition to the new rules.
Why was this deferral introduced?
The CLP Regulation is the core of chemical safety in the EU, as it governs how substances and mixtures must be classified, labelled, and packaged before being placed on the market, in order to protect human health, workers, and the environment.
However, when the Reg. (EU) 2024/2865 took effect last December 10, 2024, it introduced major changes, such as:
- New mandatory label formats and layouts, with clearer and more readable information.
- Stricter rules for providing information when products are sold online or remotely.
- New obligations for distributors, including those in the fuel sector.
These changes improve safety and transparency on the market while, at the same time, they also create time pressure for several companies needing to update systems, processes, and staff training.
The “stop-the-clock” mechanism was therefore introduced as a support measure to:
- Prevent unrealistic and burdensome deadlines.
- Reduce excessive costs and non-compliance risks.
- Provide room for developing better technologies and harmonizing rules with market realities.
Which deadlines have been postponed?
The deadlines that moved to January 1, 2028, primarily concern:
- The adoption of the new mandatory label layout (featuring larger fonts, clearer structure, and new symbols).
- The rules for advertising and distance selling, ensuring correct consumer information.
- Specific obligations for distributors of hazardous substances, especially in the fuel and related industries.
These postponements will help companies avoid short-term technical difficulties and enable a gradual compliance process, spreading investments and updates over time.
Practical impacts on companies and the supply chain
The “stop-the-clock” mechanism has tangible effects for professional in this industry:
- Planning: Companies can organize compliance pathways with greater detail and less time pressure.
- Costs: Lower risk of unexpected or rush expenses for reprinting labels or changing packaging.
- Innovation: Opportunity to integrate digital management tools (e.g. electronic labels, digital SDSs).
- Training: More time to update technical, logistics, and regulatory teams.
However, postponement does not mean the absence of obligations.
Companies must continue being compliant with the current rules and proactively prepare for the upcoming new framework.
How to prepare effectively for 2028, how to move now?
Despite the extended timeline, a proactive approach is essential:
- Closely follow ECHA communications.
- Understand the impact of the new CLP requirements on labels and safety data sheets.
- Collaborate with consultants and suppliers to develop compliant technological systems.
- Organize training plans for internal teams managing classification, labeling, and SDS activities.
- Monitor related regulatory developments, including REACH and restrictions (e.g., PFAS).
The framework established by Regulation (EU) 2024/2865 aimed at improving both safety and innovation, while the “stop-the-clock” temporarily managed its implementation to reduce negative impacts on supply chains and businesses.
This legislative step is part of a wider reform movement across EU chemical policy, that includes:
- Proposals to strengthen and revise the REACH Regulation.
- New restrictions on substances of very high concern, such as PFAS.
- Ongoing innovation within the globally harmonized classification system (GHS).
To summarize, the “stop-the-clock” mechanism under the CLP Regulation represents a strategic and pragmatic step to ensure a safe and efficient regulatory transition. Postponing the main deadlines to 2028 gives breathing space to the chemical sector, but it also demands early planning and sustained commitment to compliance.
This transitional period offers companies an opportunity to strengthen their structures, adopt modern technologies, and maintain leadership in a European market increasingly focused on safety and sustainability.
