REACH Registration Number in the Safety Data Sheet
In the European Union, there are two key legal acts governing the placing of chemical products on the market – the CLP Regulation and the REACH Regulation. Although, for certain product groups (such as pharmaceuticals), sector-specific legislation may play a more significant role, REACH (Regulation (EC) No 1907/2006) and CLP (Regulation (EC) No 1272/2008) typically appear at some stage of a chemical product’s lifecycle – at least when considering the raw materials used in its production.
The CLP Regulation is generally more widely recognized because it is “closer” to the end user of a chemical product – we encounter it through labels and hazard pictograms. The REACH Regulation, on the other hand, remains somewhat in the background, with Safety Data Sheets being its most recognizable element for the average user of chemical products.
REACH Registration Number – What Does It Actually Mean?
Safety Data Sheets are only a small part of the obligations imposed on companies by REACH. The most important requirement is the registration of substances, aimed at thoroughly assessing the hazards they may pose (while the objectives are broader and more complex, they will not be discussed in detail here).
The registration obligation applies to all substances manufactured in or imported into the EU in quantities above 1 tonne per year, unless explicitly exempted (e.g., water or, for now, polymers). This obligation is so fundamental that the regulatory principle “no data, no market” is often used – meaning that substances requiring registration cannot be legally placed on the market without fulfilling this requirement. The importance of compliance is also reflected in penalties that can reach hundreds of thousands of euros.
The REACH registration process is complex and would require a separate series of articles to fully explain. For the purpose of this discussion, the key point is that once a substance is successfully registered, it is assigned a registration number.
The registration number follows the format:
01-XXXXXXXXX-XX-XXXX, where:
- 01 indicates a full registration of the substance
- XXXXXXXXX is the substance identifier within the registration
- XX are check digits
- XXXX identifies the registrant (this part may be omitted in Safety Data Sheets and replaced with XXXX)
The registration number confirms that the manufacturer or importer has submitted the required registration dossier to the European Chemicals Agency, allowing the substance to be legally placed on the EU market.
However, the registration number is not merely a “reference number.” Each REACH number is linked to a specific company or group of companies (in the case of joint registration), meaning its use must be justified within the supply chain. In other words, it cannot be freely copied or assigned to products without an actual link to the registration.
This is a crucial point. In practice, companies often “take” registration numbers from ECHA databases and include them in their documentation (e.g., in Safety Data Sheets) without verifying whether the number actually applies to their supply chain. This is not a correct approach.
If you import a substance or purchase it within the EU, the correct ways to obtain a registration number are:
- registering the substance yourself under REACH;
- obtaining the registration number from your supplier (usually straightforward within the EU, more challenging when sourcing from countries like China or India).
There are also cases where a registration number is not required (e.g., due to low tonnage). In such situations, it is advisable to obtain confirmation from the supplier.
The Importance of the REACH Number in the Safety Data Sheet
A Safety Data Sheet is intended to reflect the actual regulatory status of a product. It communicates information about the product as a whole, as well as about the substances it contains – including their registration numbers.
For pure substances, the registration number is typically found in Section 1 of the SDS. Its absence should trigger action on your part (especially where significant volumes are involved) – you should contact the supplier and clarify the reason. The substance may be exempt from registration. However, if registration is required and the number is missing, it must be obtained.
For mixtures, registration numbers in the SDS relate to individual components. Under REACH, mixtures themselves are not registered – only substances are (mixtures are subject to other obligations, such as PCN notifications). Registration numbers for mixture components can be found in Section 3 of the SDS.
Only those numbers related to substances that must be disclosed in the SDS will be included. If your product contains substances subject to REACH registration but not required to be listed in the SDS, the registration number should be obtained directly from the supplier.
The presence of registration numbers in Safety Data Sheets is particularly important during inspections, as it is an element that authorities can easily verify. Missing or incorrect information may trigger a broader compliance check under REACH.
At the same time, it is essential to ensure that any registration number used in your documentation genuinely relates to your supply chain. When sourcing from reputable suppliers, the inclusion of the number in the SDS is usually sufficient justification for its further use. However, copying numbers from ECHA databases or SDSs from unrelated suppliers should be strictly avoided – a registration number is only valid within a specific supply chain.
What Does This Mean in Practice?
From a business perspective, a REACH registration number is more than just a documentation element – it is a real indicator of compliance. If a substance is subject to registration but no number has been assigned, placing it on the market is, in principle, prohibited.
This means that the absence of a registration number may lead not only to formal errors in the SDS but also to the product’s legality being challenged.
In practice, this requires close cooperation within the supply chain. Manufacturers, importers, and distributors must ensure that substances are registered and that the information provided is accurate and up to date. Verification of supplier data becomes particularly important – without it, companies risk propagating errors with potentially serious consequences.
When Is the Absence of a REACH Number in The Safety Data Sheet Not an Error?
Not every substance is required to have a registration number. The REACH system provides for a number of exemptions, including certain polymers, waste, or substances used under specific conditions.
However, the absence of a number must be justified. If it does not result from regulatory provisions but rather from oversight or lack of knowledge, it constitutes non-compliance that may be challenged by authorities.
REACH Number in the SDS, Inspections, and Liability
In recent years, there has been a noticeable increase in the verification of data contained in Safety Data Sheets. Authorities are no longer limited to checking the formal presence of a REACH number but increasingly assess its correctness and its link to an actual registration.
In practice, this means that an incorrect number may be treated similarly to a missing one. Consequences may include the need to correct documentation and, in more serious cases, suspension of the product from the market or administrative penalties.
Summary
The REACH registration number is one of the cornerstones of the EU chemical compliance system. Its importance goes far beyond identification – it serves as proof of regulatory compliance and a prerequisite for the lawful placing of substances on the market.
Therefore, its presence in the Safety Data Sheet should not be treated as a mere formality, but as an element requiring conscious verification. In practice, it is often such details that determine whether documentation will pass an inspection without objections.
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