Swiss Chemical Product Notifications: Common Compliance Gaps Following the January 2026 Deadline
June 2, 2026 by Fiona Moir
Switzerland's mandatory notification regime for hazardous mixtures came into full effect on 1 January 2026. Four months on, audit data suggests that a significant proportion of products on the Swiss market are still non-compliant, and the most common failure points sit squarely in hazard communications: missing UFIs, mislabelled products, and SDS content that does not match the notification on file.
The Deadline That Many Teams Underestimated
From 1 January 2026, all hazardous mixtures classified for physical or health hazards placed on the Swiss market require a complete notification dossier submitted to the Swiss Register of Products for Chemicals (RPC). This is Switzerland's equivalent of the EU Poison Centre Notification regime under CLP Annex VIII, embedded in Article 48 of the Swiss Chemicals Ordinance (ChemO). It covers mixtures for all end-uses, professional and consumer, with no general volume exemption.
The requirement is not new in concept. Switzerland has maintained ChemO notification obligations for years. What changed at the start of this year was the completion of the final phase of alignment with the EU PCN framework, extending obligations to all remaining hazardous mixtures and closing transitional arrangements that had allowed some categories to continue under earlier national rules.
For regulatory affairs teams that had EU PCN well under control, the assumption was often that Swiss compliance would follow automatically. It does not.
Where the HazCom Failures Are Showing Up
The compliance gaps Yordas is seeing in inbound requests reflect a predictable pattern. Companies with well-managed EU PCN programmes frequently assume that Swiss obligations are covered or will follow automatically. They do not. The Swiss system introduces enough divergence from EU PCN, across portal, UFI generation, representative requirements, and document consistency obligations, that a separate and deliberate compliance exercise is required for every product placed on the Swiss market. Where that exercise has not been completed, the exposure is real: non-compliant products, rejected submissions, and potential loss of Swiss market access.
These are not fringe issues. Inconsistency between the RPC dossier, the SDS, and the label is one of the most common causes of rejected submissions and enforcement exposure. The RPC notification, the SDS, and the product label must be internally consistent: the same classification, the same ingredient data, the same UFI. Where any of these documents has been updated independently of the others, the compliance position is likely compromised.
Key Differences Between Swiss RPC Notifications and EU PCN
Regulatory affairs professionals familiar with EU PCN should not assume their existing processes transfer directly.
Notifications are submitted via the Swiss RPC portal, not the ECHA PCN portal.
For products already supplied within the EEA, the existing EU UFI can also be used in Switzerland and included within the RPC notification.
Only products intended solely for the Swiss market require a Swiss-generated UFI based on a Swiss VAT number.
For products sold in both Switzerland and the EEA, the EU UFI is valid in Switzerland, but this alignment must be planned deliberately rather than assumed.
The UFI must appear on the product label or on the SDS where packaging constraints prevent label placement.
Environmentally hazardous mixtures carry an additional obligation to report annual quantities in tonnage bands, with no direct EU equivalent.
Companies without a Swiss legal presence typically require support from a Swiss-based importer, representative or service arrangement in order to manage notifications and maintain RPC access.
Nanoform substances also require specific handling: where SDS information on a nanoform constituent is available, it must be included within the notification dossier.
Swiss Notification Is Not Simply EU PCN Repeated
One of the most common misconceptions is that EU PCN compliance automatically delivers Siwss compliance. While the two systems share many similarities, Swiss notifications are submitted through the RPC platform and require information beyond that submitted through the ECHA PCN Portal.
Companies must consider Swiss-Specific reporting requirements, account management arrangements, environmental tonnage reporting obligations and legal notification workflows. As a result, organisations with mature EU PCN programmes often discover that additional work is required before their Swiss compliance position is fully aligned.
For businesses managing large product portfolios, this can create a significant administrative burden, particularly where formulations, labels, SDS and notification data must be maintained consistently across multiple jurisdictions.
What a Compliant HazCom Position Looks Like
Closing a Swiss PCN gap is not simply a matter of submitting a notification dossier. For the compliance position to be defensible, four elements need to be aligned simultaneously: the RPC notification dossier must be complete and accurate, with full compositional data, correct classification, and a valid UFI; the SDS must reflect the same classification, ingredient data, and toxicity information as the notification; the product label must carry the correct UFI and be consistent with both the SDS and the notification; and for non-Swiss suppliers, a Swiss representative arrangement must be in place before any of the above is submitted.
Unlike the EU PCN framework, Switzerland has long maintained its own notification requirements and expects detailed compositional information to be available within the RPC. For many organisations, particularly those relying on confidential formulations supplied by third parties, managing and protecting proprietary composition data can become a significant challenge.
Specialist support can help maintain confidentiality by allowing sensitive formulation information to be managed through controlled submission processes while ensuring Swiss notification requirements are met.
For companies managing large mixtures of portfolios, this is a systematic exercise. Every product in scope needs to be screened against these four criteria, with update workflows triggered wherever any element is out of alignment. Where formulation changes have occurred, companies should assess whether the change triggers a notification update and whether a new UFI is required.
How Yordas Can Help
Yordas's HazCom Managed Service provides end-to-end support for Swiss PCN compliance: SDS authoring and update for the Swiss market, UFI management, RPC notification dossier preparation, label compliance review, and Swiss representative services. If your Swiss HazCom position is uncertain, speak to our team about a portfolio assessment.
Fiona Moir | Managing Regulatory Consultant • Hazard Communication
I head up the Hazard Communication team where we cover all of our SDS, classification, labelling and packaging services. Part of this service comprises the compilation of Safety Data Sheets (SDS) in accordance with global regulations.
I wear multiple hats, from the delivery and ongoing development of service structure, operations and training (internal and external). I also work with multiple departments to help with the development of the Hazel SDS and classification tools (Internal use) and the Helix SDS Manager.
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