Working around chemicals, dust, fumes, or germs can be risky, so safety at work is very important. Employers must check what could be harmful, control exposure, keep equipment in good condition, and give clear training. They also need to make sure safety rules are followed every day and that workers know what to do in an emergency. During this time, about 680,000 people were hurt at work, and many of these injuries were linked to dangerous substances. This shows that workplace safety is still a big concern. All these safety measures are explained in What are the COSHH Regulations.

Now, we will look at the main COSHH rules and see how they keep workers safe in the workplace.

Who Must Follow COSHH Regulations?

COSHH rules must be followed by all employers, self-employed people, and workplaces in the UK. These rules apply if you use, store, or handle dangerous substances. This includes factories, hospitals, offices, and schools. COSHH covers chemicals, fumes, dust, and germs to keep workers safe.

Employers have a legal duty. They must check risks, use safety measures like ventilation or protective gear, and give training to staff. Self-employed people must follow the rules too, as both the boss and the worker.

Employees also have responsibilities. They must follow safety rules, use protective gear the right way, and report any problems. When everyone follows the rules, the workplace stays safe and healthy.

What Substances Are Covered by COSHH?

COSHH (Control of Substances Hazardous to Health) rules cover substances that can harm health. For example, this includes chemicals, fumes, dust, vapours, mists, nanotechnology, gases, and germs. These substances can come as solids, liquids, gels, or powders. Also, many have hazard symbols on their packaging to show they are dangerous.

Substances Included Under COSHH:

  • Chemicals & Products: Cleaning liquids, paints, inks, dyes, acids, adhesives, pesticides, and lubricants.
  • Dusts: Wood dust, silica dust, flour dust, and metal dust.
  • Fumes & Vapours: Welding fumes, soldering fumes, exhaust fumes, and solvent vapours.
  • Gases: Carbon monoxide, chlorine, and gases that can suffocate.
  • Biological Agents (Germs): Bacteria, fungi, and viruses, like those causing Legionnaires’ disease or Leptospirosis.
  • Nanotechnology: Tiny engineered particles called nanoparticles.

In addition, knowing which substances are dangerous helps workers stay safe. Therefore, workplaces must follow COSHH rules carefully. However, some substances may look safe but still cause harm. Finally, proper training and safety measures reduce accidents and keep everyone healthy.

What Are the 5 Words of COSHH and Their Meaning?

Understanding COSHH is easier if you look at each word. It helps workers remember the rules and stay safe.

Control

Control means keeping a substance in a safe way. It stops it from spreading or causing harm. For example, using lids, sealed boxes, cupboards, or fans can stop fumes from getting into the air. This keeps workers safe from touching or breathing dangerous substances.

Of

 “Of” connects the other words. It shows that the rules are about controlling substances that can affect people’s health.

Substances

Substances are things you use or meet at work. They can be liquids, powders, gases, or dust. For example, cleaning chemicals, smoke, or flour dust are all substances under COSHH.

Hazardous

 Hazardous means dangerous. These substances can harm your skin, eyes, or lungs. So, workers must be careful and use protective equipment.

Health

Health means your body and how well it works. COSHH protects your skin, eyes, and lungs. In the end, the goal is simple: go home feeling as healthy as when you arrived at work.

What are the COSHH regulations in the UK 

COSHH rules in the UK in 2026 help keep workers safe from harmful substances like chemicals, dust, fumes, and germs. First, employers must reduce risks and protect workers.

Core COSHH Requirements in 2026

  • Risk Assessment
    Employers must check risks before work starts. Next, they must find harmful substances and understand the danger.
  • Control Measures
    Employers must stop exposure if possible. Then, they must control it if they cannot stop it. They can remove hazards, use safer options, improve ventilation, or give safety gear.
  • Workplace Exposure Limits (WELs)
    Employers must keep exposure below safe limits. Also, this is very important for dangerous substances.
  • Information and Training
     Workers must get clear training. In addition, they need to know the risks and how to work safely.
  • Health Monitoring
    Employers must check workers’ health when needed. Finally, this helps find problems early and keep workers safe.

How Are COSHH Regulations Enforced?

In the UK in 2026, COSHH (Control of Substances Hazardous to Health) rules are enforced by the Health and Safety Executive (HSE) in most workplaces. However, smaller offices and shops are checked by local authorities. First, inspectors look at risk assessments and safety measures. Also, they make sure workplaces follow the rules to prevent accidents. In addition, inspectors check that safety documents are kept up to date. Finally, they take action if rules are broken.

Enforcement Methods and Powers

Inspectors have legal powers under the Health and Safety at Work Act 1974. For example, they can make unannounced visits, especially in high-risk sectors like construction, factories, and hospitals. Then, they can carry out site investigations after accidents, dangerous events, or reports of illness. They can also collect measurements, photos, samples, and ask for documents like risk assessments.

Furthermore, inspectors can issue enforcement notices. Improvement notices tell employers to fix problems within a set time. Prohibition notices stop work immediately if it is very dangerous. Finally, courts can take action if serious breaches happen or notices are ignored.

Why Are COSHH Regulations Important?

COSHH, which stands for Control of Substances Hazardous to Health, is very important. It is a legal rule that protects workers from dangerous substances. It stops serious illnesses, injuries, and even deaths. First, employers must find hazards and check risks. Then, they should use safety measures and give training. Also, this makes the workplace safe and productive. In addition, it helps workers feel confident. Finally, following COSHH keeps everyone healthy.

Key Reasons COSHH Is Important

Protects Health and Saves Lives

COSHH prevents health problems like skin diseases, lung illnesses, cancers, and injuries from dangerous fumes, liquids, or dust.

Legal Compliance

It is the law, called the 2002 Regulations. Following it helps employers avoid fines, prosecution, or jail.

Reduces Workplace Risks

COSHH makes sure harmful substances are found and controlled through risk checks.

Boosts Reputation and Productivity

Safe workplaces increase worker confidence, morale, and productivity. They also reduce sick leave.

Ensures Safe Handling and Storage

COSHH makes sure dangerous substances are stored, labelled, and disposed of safely. This prevents accidents like fires or spills.

Also, using proper safety measures such as replacing dangerous chemicals with safer ones, improving ventilation, and using protective gear called PPE lowers the risk of short-term and long-term health problems.

What Are Common COSHH Risks in the Workplace?

Working with chemicals, dust, fumes, or germs can be dangerous. Some common risks are:

  • Skin burns, rashes, or irritation from chemicals
  • Breathing problems like asthma or other lung issues
  • Long-term sickness from repeated dust or fume exposure
  • Accidents from spills, leaks, or unsafe handling

Also, these risks can happen in offices, factories, hospitals or schools. Imagine going home feeling sick because of something you could have avoided. In fact, real stories from different workplaces show how serious these risks can be if safety rules are ignored. Finally, knowing the dangers helps you stay safe.

How to Conduct a COSHH Risk Assessment

A COSHH risk assessment may sound difficult, but it is simple if you follow clear steps. First, look carefully around your workplace. Check for chemicals, dust, fumes, or germs that could be harmful. Don’t forget storage areas, workstations or machines that release dangerous substances.

Next, think about who might be at risk. This includes workers, cleaners, visitors, and contractors. Also, consider how serious the risk is. Could it cause a small irritation, a serious injury, or a long-term illness? You should also think about how often people are exposed to the hazard.

Then, write down everything you find. Record each substance, who is at risk, and what actions you will take to make it safe. This could include changing work methods, using safer substances, or introducing protective equipment.

After that, put safety measures in place. Workers should wear gloves, masks, or goggles when needed. You can also improve ventilation, provide emergency wash stations, or replace dangerous substances with safer alternatives. In addition, train all staff on how to handle substances safely. Make sure everyone understands the rules and follows them every day.

Finally, review your assessment regularly. Risks can change if new chemicals, tools, or processes are used. By checking often, you keep workers safe and healthy. Keep a record of inspections and updates. This shows that your workplace follows COSHH rules and cares about everyone’s health.

What Are COSHH Safety Data Sheets (SDS)?

COSHH Safety Data Sheets, or SDS, are very important. They are documents from chemical suppliers that give detailed information about hazardous substances. First, each SDS has 16 sections. Also, these sheets help create COSHH risk assessments. In addition, they make sure substances are handled, stored, transported, and disposed of safely. Furthermore, SDS are required by UK REACH and COSHH rules.

Key Points About SDS

Purpose

SDS tell users about hazards, such as toxicity, flammability, or environmental damage. They also explain safety measures, like using PPE or improving ventilation, to prevent health problems.

Required Content

Each SDS has 16 standard sections. For example, these include hazard identification, first-aid instructions, exposure controls, and physical properties.

Legal Duty

Suppliers must give up-to-date SDS to anyone using their chemicals. Otherwise, the workplace may not comply with the law.

SDS vs COSHH Assessment

The SDS gives the hazard information. Then, the COSHH risk assessment uses that information to make a safety plan for your workplace.

Main SDS Information Categories

  • Identification: Name of the substance and supplier details
  • Hazards Identification: Key hazards, warning symbols, and phrases
  • Composition: Ingredients in the substance
  • First-Aid Measures: What to do if someone is exposed
  • Handling and Storage: How to handle and store safely
  • Exposure Controls/PPE: Protective gear and engineering controls
  • Physical Properties: Appearance, pH, flashpoint, and other properties
  • Stability/Reactivity: Conditions to avoid

Finally, keeping and using SDS properly helps workers stay safe and healthy every day.

What Are the Key Duties Under COSHH?

Under COSHH (Control of Substances Hazardous to Health), employers must keep workers safe from dangerous substances. First, they must check risks. Then, they should use safety measures like ventilation or protective gear and give training. Also, employees must follow the rules, use protective gear correctly, and always report any problems. In addition, workplaces should review safety regularly. Finally, having clear plans helps everyone stay safe.

Employers have several key duties. They must do a risk assessment to find dangerous substances and see how they could harm health. They must control exposure by stopping workers from being exposed. If that is not possible, tools like fume cupboards or protective gear should be used. Employers must maintain controls, making sure all safety equipment works properly and is used correctly. 

They also need to provide information and training, teaching workers about risks and safe ways to work. Health checks should be done when needed to catch problems early. Finally, employers must have emergency plans so everyone knows what to do in an accident.

Final Thoughts on COSHH Regulations

COSHH rules keep everyone safe at work. They protect bosses, workers, and visitors from chemicals, dust, fumes, and germs. First, check risks and wear safety gear like gloves, masks, and goggles. This stops accidents and keeps you healthy. Next, give training and clear instructions. 

This helps everyone know how to work safely and what to do if something goes wrong. Also, use COSHH Safety Data Sheets. They show the dangers of substances and how to store them safely. Finally, check safety plans often and follow the rules every day. Following COSHH saves lives, prevents sickness, and helps everyone feel safe and confident at work.

FAQs 

1. What are the three main regulations of COSHH?

First, find dangerous substances. Then, check the risks. Finally, stop or control exposure.

2. What are the COSHH regulations in England?

Employers must protect workers from harmful substances. Also, they check risks, use safety tools, give training, and review safety regularly.

3. What are the COSHH regulations 1999?

These rules make it the law to control harmful substances at work. Therefore, workplaces must do risk checks, use safety measures, provide training, and do health checks.

4. What are the five major safety regulations?

  1. Check risks.
  2. Wear safety gear.
  3. Store substances safely. 
  4. Next, give training and info.
  5. Have emergency plans.

5. What are the five principles of COSHH?

  1. Find hazards.
  2. Know who is at risk.
  3. Check the risk level.
  4. Then, use safety measures.
  5. Review safety often.

6. What are the 5 main substances covered by COSHH?

  1. Chemicals.
  2. Dust.
  3. Fumes and vapours. 
  4. Next, gases.
  5. Germs and bacteria.

7. What are the 7 safety rules?

  1. Find hazards.
  2. Check risks.
  3. Use safety controls.
  4. Wear protective gear.
  5. Follow instructions. 
  6. Then, train workers.
  7. Review safety often.

8. What is the golden rule of COSHH?

Stop exposure to harmful substances. If you cannot stop it, control it safely.

9. How to explain COSHH in an interview?

COSHH protects workers from harmful substances. It means finding hazards, checking risks, using safety gear, giving training, and following safety plans.

10. What does COSHH not apply to?

It does not cover substances at home, lead, asbestos, radioactive materials, or products covered by other laws. However, these are controlled by other rules.