Which Confined Space Course Do I Need? Low, Medium, or High Risk?
If you work in industries such as utilities, construction, wastewater, manufacturing, or facilities management, you may be required to enter a confined space as part of your role. One of the most common questions we hear is: “Which confined space course do I need?”
The answer depends on the level of risk associated with the confined space you will be entering. In this guide, we’ll explain the differences between low risk, medium risk, and high risk confined spaces, helping you identify the most appropriate confined space training course for your needs.
What Confined Space Training Do I Need?
Before choosing a confined space course, it is important to understand what actually qualifies as a confined space.
The Health and Safety Executive (HSE) defines a confined space as a place that is enclosed, or largely enclosed, and where there is a reasonably foreseeable risk of serious injury from hazards such as:
- Lack of oxygen
- Toxic gases, fumes, or vapours
- Fire or explosion
- Flooding by liquids
- Free-flowing solids
- Excessive heat leading to injury
Because confined spaces can present significant hazards, appropriate confined space entry training is essential to ensure workers can enter, work, and exit safely.
Which Confined Space Course Is Right for Me: Low, Medium, or High Risk?
A common misconception is that confined spaces are legally classified as low, medium, or high risk. In reality, there is no fixed legal classification system.
Instead, employers must carry out a suitable and sufficient risk assessment to identify the hazards present, assess the level of risk, and determine the control measures required before entry takes place.
However, within the confined space training industry, courses are often grouped into low, medium, and high-risk categories to reflect the types of environments and hazards workers may encounter.
Low Risk Confined Space Training
Low-risk confined spaces typically have minimal foreseeable hazards and straightforward access arrangements.
Characteristics of low-risk confined spaces include:
- Good natural ventilation
- Simple access and egress
- No foreseeable toxic atmosphere
- No flooding risk
- No breathing apparatus required
Examples of low-risk confined spaces may include:
- Valve chambers
- Meter pits
- Small plant rooms
If your work involves entering environments similar to these, a confined space awareness training or low-risk confined space training course may be suitable.
Low-risk training focuses on hazard awareness, risk assessments, safe systems of work, and understanding emergency procedures.
Book our City & Guilds Level 2 Award in Working in Low Risk Confined Spaces (6160-01)
Medium Risk Confined Space Training
Medium-risk confined spaces involve additional hazards that require more advanced procedures and controls.
These environments may include:
- Potential atmospheric hazards
- More complex access arrangements
- Escape breathing apparatus carried for emergency use
- Permit-to-work systems
- Trained standby personnel outside the confined space, often referred to as a “Top Man”
Examples of medium-risk confined spaces may include:
- Certain sewer systems
- Pumping stations
- Enclosed tanks with limited ventilation
Workers entering these environments typically require a more comprehensive confined spaces training programme that covers:
- Gas monitoring
- Permit-to-work procedures
- Use of escape breathing apparatus
- Communication systems
- Emergency arrangements
- Duties of entrants and top persons
This level of confined space safety training is common within utilities, drainage, water treatment, and industrial maintenance sectors.
Book our City & Guilds Level 2 Award in Working in Medium Risk Confined Spaces (6160-09)
High Risk Confined Space Training
High-risk confined spaces present significant hazards that require specialist equipment, advanced training, and robust rescue arrangements.
Characteristics may include:
- Significant hazards identified during risk assessment
- Breathing apparatus required
- Complex rescue procedures
- Potential toxic, oxygen-deficient, or explosive atmospheres
- Dedicated rescue teams
Examples of high-risk confined spaces include:
- Large chemical tanks
- Process vessels
- Certain sewers and tunnels
Personnel working in these environments require specialist confined space entry training that includes:
- Working with breathing apparatus
- Advanced gas detection techniques
- Emergency rescue procedures
- Casualty recovery
- Team-based entry operations
- Legislative and safety requirements
High-risk confined spaces courses are designed for workers operating in the most demanding environments where the consequences of an incident can be severe.
Book our City & Guilds Level 2 Award in Working in High Risk Confined Spaces (6160-03)
How Do I Know Which Confined Space Course I Need?
The most important factor is the outcome of your employer’s risk assessment.
Before booking a confined space training course, consider:
- What type of confined space will you enter?
- Are atmospheric hazards present?
- Is breathing apparatus required?
- Will a permit-to-work system be used?
- What rescue arrangements are in place?
- What level of responsibility will you have?
If you are unsure, our team can help identify the most suitable confined space training for your role and workplace requirements.
Why Is Confined Space Training Important?
Confined space incidents can develop rapidly and often have serious consequences. Proper training ensures workers understand:
- The hazards associated with confined spaces
- Safe entry and exit procedures
- How to use safety equipment correctly
- Emergency and rescue procedures
- Legal responsibilities under current health and safety legislation
Investing in the right confined space course not only helps protect workers but also supports compliance and reduces risk across your organisation.
Confined Space Training in Wales
At COTS Training, we deliver a comprehensive range of confined space training courses for individuals and organisations across Wales and the UK. Whether you need confined space awareness training, medium-risk entry training, or high-risk rescue and breathing apparatus qualifications, our experienced instructors can help you develop the knowledge and practical skills needed to work safely.
Our purpose-built confined space chamber is located directly within our training facility, allowing for a seamless transition between classroom learning and realistic practical exercises.
Find the Right Confined Space Course Today
Choosing the correct confined space training course starts with understanding the risks involved in your working environment. Whether your requirements are low, medium, or high risk, receiving the appropriate training is essential for ensuring safe and compliant working practices.
To learn more about our full range of confined space training courses, visit our dedicated Confined Spaces page:
👉 https://www.cotstraining.co.uk/sectors/confined-spaces/
For further advice on selecting the right course, contact the COTS Training team today.