UFI – The Unique Formula Identifier:
A New GHS Labelling Element for Hazardous Mixtures in the EU

dataEssence has been updated to include the mandatory field for UFI numbers and it is the perfect solution for creating and printing GHS/CLP compliant labels and documents.

What is a UFI?

From 1st Jan 2021, a requirement came into force that a new label element will have to appear on the labels of all products in the EU classified for Health and/or Physical Hazards.

A 16-character code called the Unique Formula Identifier (UFI) will be mandatory on the labels of such products and importers and downstream users placing these products on the market will also have to provide specific product information, including the UFI, to poison centres.

A UFI is a 16-character alphanumeric code that is now a requirement on labels as part of a recent amendment to the EU Classification, labelling and packaging of substances and mixtures (CLP).

In addition to the UFI, there is the requirement to notify your products to the relevant Poison Centre of the country you intend to sell in. You are required to provide other information on your mixture and associated products such as composition, trade name, colour, packaging, product category and toxicological information. You notify the products in the form of a Poison Centre Notification product dossier.

Why do my products need a UFI number/registration with the Poison Centres?

Generating a Unique Formula Identifier (UFI) and ensuring it is visible on the product is an industry obligation.

Under Article 45 & Annex VIII to Regulation (EC) No. 1272/2008 on the classification, labelling and packaging of substances and mixtures has made the requirement to provide a dossier of information regarding hazardous products to be submitted to Poison Centres, so that emergency responders can obtain accurate information about the composition of a product.

Candles, wax melts, reed diffusers and other home fragrance products fall under the remit of CLP and therefore these products will require (where required due to the nature of the hazards triggered) a UFI number to be present on the CLP label and the formulation information submitted to the Poison Centre Portal Notification (PCN) via a dossier.

When do you need a UFI?

Mixtures that are classified as either a human health hazard or a physical hazard require a UFI on the CLP label and a PCN.

Hazardous mixtures are those mixtures that (a) fall into the scope of CLP and (b) have a physical or health hazard classification.

If your product/mixture is labelled with one of the following hazard pictograms for human exposure, the UFI code must be included on the label.

Mixtures classified as environmental hazards only can be notified on a voluntary basis.

CLP Example with UFI code

Where must the UFI be shown?

The UFI must be included on your CLP label, it cannot be included on the product label or elsewhere on your goods. Within the CLP label, the UFI may be positioned either with the Product Identifier or within the Supplemental Information Section.

How to genarate a UFI code?

To create a UFI you can access ECHA’s UFI Generator online tool. You can use your company’s VAT number (though it is possible without) and the mixture specific formulation number. Entering this information into the UFI Generator, will generate your unique UFI code.

Here is the Link to the UFI generator UFI Generator (europa.eu)


The deadline for the submission of the information following the new requirements set by the amended CLP Regulation will apply in a stepwise manner, according to the use type of the mixture i.e., consumer, professional or industrial use.

Importers and downstream users placing mixtures on the market not notified already under national legislation must comply with Annex VIII of the Regulation from the following dates:

  • Mixtures for consumer use: from 1 January 2021
  • Mixtures for professional use: from 1 January 2021
  • Mixtures for industrial use: from 1 January 2024

Want to know more?

If you would like to find out more about how we can provide you with training and software for creating your own GHS/CLP compliant labels and documents for your product range please do get in touch for a demonstration. We’ll be more than happy to help!

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