What Is a Safety Data Sheet and What Are You Legally Required to Do with It?
If your team uses cleaning chemicals at work, you are already operating in regulated territory. Whether it is a concentrated floor cleaner, a toilet descaler, or a disinfectant spray, if the product is classified as hazardous, a safety data sheet (SDS) must exist, and you are legally required to do something with it.
Most businesses have a vague awareness that these documents exist. Fewer have a clear picture of what the law actually requires them to do, what is listed inside an SDS, or what the consequences of non-compliance can look like. This guide answers all three questions plainly, so you know exactly where you stand.
What Is a Safety Data Sheet?
A safety data sheet is a standardised technical document that describes all of the hazards that are associated with a chemical cleaning product and sets out how you should handle, store, and dispose of it safely. Every SDS will follow the same format: 16 sections, in the same order, regardless of the manufacturer or the product type.
The format is defined under the UK REACH Regulation, which is the UK’s retained version of EU REACH law following Brexit. The Health and Safety Executive (HSE) oversees enforcement, and Defra holds policy responsibility.
SDS documents used to be called material safety data sheets (MSDS). The terminology changed under REACH to standardise the format across the EU, and the UK retained that standard. If you see MSDS referenced on older documents or supplier systems, it refers to the same thing.
An SDS is not a risk assessment. This is one of the most common points of confusion. An SDS describes the hazards associated with a product in general. Your COSHH risk assessment is a separate document entirely that applies that information to your specific workplace, your specific staff, and your specific tasks. You will always need to have both.
Who Must Provide an SDS?
The legal obligation to produce and supply an SDS sits with the chemical supplier or the manufacturer of the product itself. Under UK REACH, a supplier must provide you with an up-to-date SDS when:
- a product is classified as hazardous
- a product contains a hazardous substance above a certain concentration threshold, even if the product itself is not classified as hazardous
- you request one
You should receive an SDS when a product is first ordered. If the formulation changes, the supplier must provide an updated version for you. If you ask for one at any point, the supplier must provide it to you free of charge. The HSE confirms that suppliers can be reported to them if they refuse to provide you with the relevant safety information.
As the employer using those products, you are not responsible for writing the SDS. You are responsible for receiving it, understanding what it means for your workplace, and acting on it.
What Are the 16 Mandatory Sections of a Safety Data Sheet?
Every compliant SDS contains the same 16 sections in the same sequence. Here is what each one covers and why it matters in practice.
| Section | Title | What It Covers | Why It Matters to You |
|---|---|---|---|
| 1 | Identification | Product name, supplier contact details, emergency number | First port of call in an incident |
| 2 | Hazard identification | Classification, hazard symbols, risk phrases | Tells you whether the product is flammable, corrosive, toxic or harmful |
| 3 | Composition/product ingredients | Hazardous ingredients and their concentrations | Helps you identify substances requiring COSHH assessment |
| 4 | First-aid measures | What to do if someone is exposed | Must be legible and actionable by untrained staff |
| 5 | Fire-fighting measures | Suitable extinguishing media, substances to avoid | Critical if a product is flammable or reacts to water |
| 6 | Accidental release measures | Spill containment and clean-up procedures | Guides your emergency response protocols |
| 7 | Handling and storage | Safe practices and incompatible conditions | Informs your storage layout and PPE requirements |
| 8 | Exposure controls/personal protection | Workplace Exposure Limits (WELs), required PPE | Determines what protection staff must wear |
| 9 | Physical and chemical properties | Appearance, odour, pH, boiling point | Useful for identifying products and detecting contamination |
| 10 | Stability and reactivity | Conditions to avoid, dangerous reactions | Prevents accidental chemical reactions in storage rooms |
| 11 | Toxicological information | Health effects from exposure | Supports your COSHH risk assessment |
| 12 | Ecological information | Environmental effects and persistence | Relevant for correct disposal and spill reporting |
| 13 | Disposal considerations | How to dispose of the product and its packaging | Guides you on waste segregation and legal disposal |
| 14 | Transport information | Classification for carriage by road, air, or sea | Required if you transport products off-site |
| 15 | Regulatory information | Applicable UK legislation | Confirms which regulations apply to this substance |
| 16 | Other information | Version changes, training advice, abbreviations | Confirms how current the document is and flags revisions |
When you receive an SDS, we recommend checking that Sections 2 and 16 are consistent. If the hazard classification on the SDS does not match the product label, contact the supplier immediately to confirm which information is current.
What Does the Law Require You to Do with an SDS?
Holding an SDS is not enough. The law requires you to act on it. Your obligations under the Control of Substances Hazardous to Health Regulations 2002 (COSHH) break down into four practical duties.
1. Carry out a COSHH risk assessment
Every hazardous substance that you use in your workplace must be assessed for any and all associated risks. The SDS gives you the information to do this: it tells you what hazards exist, what exposure limits apply, and what protective measures are required to keep everyone safe. The assessment records how likely those hazards are to arise in your specific context and what controls you have in place to manage them.
If you employ five or more people, you must record the significant findings of the assessment in writing. This record must be accessible to health and safety representatives and to HSE inspectors if and when requested.
2. Implement and maintain control measures
Once the assessment is complete, the required control measures must actually be put in place. This includes the personal protective equipment (PPE) listed in Section 8 of the SDS, appropriate ventilation, correct storage as set out in Section 7, and any emergency procedures from Sections 4 to 6. Having the SDS on file does not satisfy this duty. The controls it describes must be used.
3. Provide information, instruction, and training
Your staff must know about the hazards associated with the products they use day to day, the risks those hazards present, and how to protect themselves. This is a distinct legal obligation under COSHH, not an optional extra. SDS documents alone do not fulfil this duty. Staff need to be able to apply that information to their specific tasks and environment.
4. Keep SDS documents current
Formulations change. Regulations change. An SDS that was accurate three years ago may not reflect the current hazard classification of the product. HSE guidance recommends checking with suppliers at least every 12 months for updated versions. When a new SDS is received, the previous version should be archived rather than destroyed, in case questions arise about past exposure.
What Happens If You Do Not Have an SDS or Fail to Comply?
Non-compliance with COSHH and UK REACH is not a minor administrative matter. HSE has wide enforcement powers, and those powers are regularly used.
In 2024/25, the HSE issued over 4,400 enforcement notices, completed 246 prosecutions with a 96% conviction rate, and courts awarded over £33 million in fines, according to the HSE Annual Report and Accounts 2024 to 2025. While those figures cover the full range of health and safety breaches, chemical and COSHH failures are a consistent enforcement priority.
Practically, the risks to businesses that do not manage SDS documents properly include:
- Improvement notices requiring corrective action within a set timeframe
- Prohibition notices stopping work immediately until the risk is controlled
- Prosecution and significant fines, which are uncapped in the Crown Court
- Civil liability if a staff member suffers harm from a substance that was improperly assessed or controlled
- Reputational damage if enforcement action becomes a matter of public record
Beyond legal risk alone, there is also a straightforward operational argument. An employee who doesn’t know how to respond to a chemical splash, or who stores an oxidising agent next to a flammable cleaner, creates a real safety exposure. The SDS contains the information that prevents those situations. Not using it is not a paper compliance failure; it is a practical risk.
SDS Management in Practice: What Good Looks Like
Many businesses treat SDS documents as purely a box-ticking exercise. A compliant, well-run operation treats them differently.
Here is the difference between minimum compliance and best practice:
| Area | Minimum Compliance | Best Practice |
|---|---|---|
| Document storage | SDS filed somewhere on site | SDS accessible at the point of use, indexed by product |
| Currency checks | Updated when a supplier sends one | Supplier review at least annually and ensure any new SDS is filed and old version archived |
| Staff access | SDS available if requested | Staff know which products have SDS documents and where to find them |
| Training | Staff informed that SDS documents exist | Staff trained on relevant sections for the products they use |
| COSHH link | COSHH assessment references the SDS | Assessment cross-references specific SDS sections (8, 11) with named controls |
| Incident response | SDS taken to A&E when someone asks | Section 4 procedures posted in the area with SDS available instantly |
The difference is not primarily about documentation. It is about whether the information in the SDS is actually being used to protect people.
Why Your Choice of Supplier Makes a Difference
Not all cleaning product suppliers approach SDS documentation the same way. A specialist trade supplier will provide compliant, up-to-date SDS documents as standard for every product, without you having to chase them. Products are correctly classified under UK REACH, hazard information is consistent with labelling, and updated sheets are issued when formulations change.
Buying cleaning chemicals through a general merchant or a consumer retail channel introduces risk. Consumer products are not always formulated or labelled for workplace use. SDS documents may not exist or may not meet the UK REACH standard. Staff handling those products in a commercial environment are working outside the parameters the product was assessed for.
A trade account with a reputable commercial cleaning supplies specialist removes that variable. You get the right product for the application, the documentation to support your COSHH assessment, and the confidence that the SDS you receive is compliant and current.
Frequently Asked Questions (FAQs)
Do I need a safety data sheet for every cleaning product I use?
You need an SDS for any cleaning product that is classified as hazardous. Most professional-grade cleaning chemicals, including concentrated disinfectants, degreasers, descalers, and bleach-based products, will be classified as hazardous and must come with a compliant SDS. If you are unsure whether a specific product requires one, ask your supplier. Under UK REACH, they are obliged to tell you.
Is a safety data sheet the same as a COSHH assessment?
No. An SDS is a document produced by the manufacturer or supplier describing the general hazards of a product. A COSHH assessment is a document you produce that applies that information to your specific workplace, tasks, and staff. The SDS informs the assessment; it does not replace it. Both are required.
How often do I need to update my safety data sheets?
There is no fixed legal interval for reviewing SDS documents, but HSE guidance recommends checking with suppliers at least every 12 months. You should also request an updated SDS if the product formulation changes or if the regulatory classification of any ingredient is revised. When a new version is received, archive the previous one rather than deleting it.
What should I do if my supplier cannot provide a safety data sheet?
If a supplier refuses to provide an SDS for a product that requires one, this is a breach of UK REACH. You should first request the document in writing. If the supplier still does not provide it, HSE recommends reporting the supplier. In the meantime, do not use the product until you have the SDS and have completed your COSHH assessment.
Where should safety data sheets be stored on site?
SDS documents should be stored where they are accessible to the people who use or may be exposed to the relevant products. Storing them all in the manager’s office while staff work with the products on a different floor does not meet the intent of the law. Best practice is to have the SDS available at or near the point of use, with a clear system so staff know how to find the document for any product they are using.
Power Hygiene Expert Insights Team
Power Hygiene has been a trusted name in commercial cleaning and hygiene supply for over 40 years, supporting organisations across the UK with reliable products, expert advice, and sustainable solutions.
Our Expert Insights Team brings together industry knowledge from across cleaning, procurement, and facilities management to share practical, real-world guidance that helps businesses maintain safer, cleaner, and more efficient environments.
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