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From 1 January 2026, companies placing dangerous mixtures on the Swiss market will be subject to a mandatory obligation to submit a Poison Centre Notification (PCN), including a Unique Formula Identifier (UFI) and detailed composition information.

This requirement is established under Article 48 of the Swiss Chemicals Ordinance (ChemO). While the Swiss system is largely aligned with the EU PCN framework under Article 45 of the CLP Regulation, there are notable national specificities that companies must be aware of.

Scope of Swiss PCN

The obligation applies to all hazardous mixtures/preparations classified under CLP, including:

• Physical hazards
• Human health hazards
• Environmental hazards

Only specifically exempted product categories are excluded from the requirement.

Key Features of Swiss PCN

Poisons Centre
Tox Info Suisse, as defined in Article 79 ChemO, is the designated poisons information centre. It provides 24/7 medical advice free of charge in cases of poisoning or suspected poisoning.

UFI Requirement
A Swiss UFI must be generated using the Swiss UFI generator and included on the product label.

Submission Portal
PCN dossiers must be submitted via the Swiss RPC (Register of Products for Chemicals) online portal.

Environmental Hazard Reporting
For environmentally hazardous mixtures, quantities placed on the market must be reported in bands, which is a specific Swiss requirement.

No General Tonnage Exemption
Switzerland does not provide a general exemption for trivial quantities.
The only exceptions apply to:

• Intermediates
• Mixtures intended exclusively for professional users
  For these cases, a threshold of 100 kg per year applies.

Non Swiss companies require a local Swiss entity to act as commercial representative to perform PCN submission.

Early preparation will help avoid compliance risks and ensure continued market access in Switzerland from 1 January 2026.