UFI Code for Hazardous Mixtures: Mandatory Labeling Explained

If you manufacture, import, or sell chemical products in the European Union (EU) or European Economic Area (EEA), you may already be familiar with the term UFI code. The UFI (Unique Formula Identifier) has become a key requirement for chemical safety compliance across the EU. But what exactly is a UFI code, and why is it mandatory for so many products? Let’s break it down in simple terms.

What Is a UFI Code?

A UFI code is a 16-character alphanumeric identifier used to uniquely identify the exact formulation of a hazardous chemical mixture. It appears as a combination of letters and numbers, for example: YV9K-3J9A-G209-C2T7.

What makes the UFI especially important is that it links the product as sold on the market with detailed formulation information submitted through the EU Poison Centre Notification (PCN) system. This link allows authorities to quickly and accurately identify the mixture in emergency situations, such as accidental exposure or poisoning.

Where Did the Requirement Come From?

The UFI requirement was introduced under the CLP Regulation (EU) 1272/2008, through Commission Regulation (EU) 2017/542. This amendment established a harmonised approach to Poison Centre Notifications (PCN) across the EU, with the aim of improving how emergency health services manage incidents involving hazardous mixtures.

Why Is a UFI Code Mandatory?

The UFI code is mandatory for all hazardous mixtures for several important reasons:

1. Faster and More Accurate Emergency Response

When consumers or workers are exposed to a hazardous product, time is critical. Without clear identification, poison centre operators may struggle to determine which mixture is involved, delaying vital medical advice. The UFI allows them to instantly match the product to detailed hazard and composition data.

2. Clear Regulatory Compliance

Under the CLP Regulation, mixtures classified as health or physical hazards must display a UFI code on the label. This requirement applies to consumer, professional, and industrial products. The code must be clearly shown with the prefix “UFI:” followed by the 16-character identifier.

3. Harmonised Safety Information Across the EU

The UFI creates a direct link between the information on the product label and the detailed formulation data submitted through the PCN. This ensures that emergency responders across the EU have access to consistent and reliable safety information, regardless of where the product is sold.

When Did the UFI Become Mandatory?

The UFI requirement was introduced in phases:

• From 1 January 2021 – mandatory for new consumer and professional-use mixtures

• From 1 January 2024 – extended to industrial-use mixtures

• By 1 January 2025 – all hazardous mixtures already on the market must carry a UFI

As a result, nearly all hazardous mixtures placed on the EU market today must have a UFI and a corresponding PCN submission.

Who Is Responsible for Providing the UFI?

The responsibility to generate and label products with a UFI lies with manufacturers, importers, and downstream users who place hazardous mixtures on the EU/EEA market. These companies must also submit detailed product information in the PCN format to the relevant poison centres.

Conclusion

A UFI code is more than just an identifier—it is a critical regulatory tool that enables emergency services to quickly access product information and supports safer use of chemicals across Europe. Mandatory under EU law for hazardous mixtures, the UFI ensures traceability and helps ensure that appropriate medical advice can be provided without delay.

Freyr’s experts support chemical safety compliance, including CLP compliance, UFI code generation, and PCN submissions, helping companies meet regulatory requirements efficiently and confidently.