What is a competent person? Meaning in health and safety

A competent person is someone who has enough training, experience, knowledge and other qualities to do a particular task safely, and to recognise when it is beyond them. Competence is about the job in front of you, not a general label. This article explains the idea in plain English, and it is independent study material that is not affiliated with CSCS or CITB.

Key takeaways

What "competent" means

In everyday speech, "competent" means "good at something". In health and safety, it has a more practical meaning. A competent person has the right mix of:

• Training, so they have learnt the correct methods and the reasons behind them.
• Experience, so they have done similar work and know how it goes in real conditions.
• Knowledge, so they understand the hazards, the rules and the controls that apply.
• Other personal qualities, such as the judgement to spot danger and the confidence to stop work when something is not right.

The Management of Health and Safety at Work Regulations 1999 use the idea in this way. They require employers to appoint one or more competent people to help them comply with health and safety law, and they describe a competent person in terms of sufficient training and experience, or knowledge, and other qualities. Reading the regulation itself is the best way to see the exact wording.

Why competence appears in so many rules

Competence is not a single rule in one place. It is a theme across health and safety law, because unsafe work so often comes from someone doing a job without the skills to do it safely. You will find the idea in several settings:

• Appointing help with health and safety. Employers need competent people to assist them in carrying out the measures that law requires.
• Construction roles. The Construction (Design and Management) Regulations 2015 apply to construction projects and set duties for clients, designers and contractors. Those duties go together with the expectation that people taking on roles have the skills, knowledge and experience for them. Check the regulations for the current detail.
• Inspecting and checking equipment or work. Some regulations require that certain inspections are carried out by a competent person, because the person looking has to know what a safe condition looks like. The regulation for the equipment or task in question states what is needed.
• Supervision and instruction. People supervising or instructing others must themselves be able to do the work safely.

Because the wording differs from one regulation to another, avoid assuming that the same qualification is needed in every case. The risk assessment and the relevant rules decide what competence a task requires.

Competence is not the same as a card or certificate

A card, certificate or training record can be good evidence that someone has learnt the basics. But competence for a particular task also depends on experience and on the conditions on the day. A person with a valid card is not automatically competent to carry out any job on site. Equally, a person with years of experience may need updated training if rules or equipment have changed.

For that reason, many employers combine training records with inductions, task briefings and supervision. If you are asked to do something you have not been trained for, the safe answer is to say so.

Your responsibilities as a worker

Competence is a shared responsibility. Employers must make sure people have the training and information to do the work and, when giving out tasks, must take into account people's capabilities as regards health and safety. As a worker you have a part to play too. See also worker responsibilities on site.

Competence checklist before a task

• [ ] Do I know what this task involves and what could go wrong?
• [ ] Have I been trained for it, or have I done something very similar before?
• [ ] Do I know how to use the equipment and what its limits are?
• [ ] Have I read and understood the method statement and risk assessment?
• [ ] Do I know when to stop work and who to call?
• [ ] If I am not sure about any of these, have I asked before starting?

Competent person, authorised person and supervisor

These terms are related but not identical. A competent person has the knowledge and experience for the task. In general usage, an authorised person has been given permission by the employer to carry out a specific activity, for example operating a certain machine or entering a defined area. Some regulations define it differently, so check the one that applies. Someone can be one without the other, and safe working often needs both. A supervisor oversees work and has responsibility for how it is carried out, and should be competent to do that. If an exam question uses these terms together, read the wording closely and pick the option that matches what the scenario actually describes.

Worked example: asked to use unfamiliar equipment

Here is an invented scenario to show how the idea works on site. A general operative with a few years of experience is told by a supervisor to set up a piece of cutting equipment that the site has just hired. The operative has used a different type of cutter before but has never seen this model, and the guard looks different from the one they know.

Applying the ideas above (general practice):

1. Task. Setting up and using this specific machine, not "cutting" in general.
2. Training. Training on a different model is useful, but it does not cover this one.
3. Experience. Real experience with similar work counts, but the controls and limits of this model are unknown.
4. Knowledge. The operative cannot yet say what the safe set-up is, so they cannot be sure they are competent.
5. Judgement. Part of competence is recognising this gap and stopping, not pressing on to look capable.

The safe action is to tell the supervisor, ask for instruction on the machine and for the risk assessment and method statement that cover it, and to start only when the instruction has been given. If the supervisor says the hire company or a trained colleague can show them first, that is the right answer, because competence for this task will then be built on proper information. In a practice question with this shape, the option that stops work and asks for the right instruction is nearly always the safest.

Common questions on site

Workers often meet the word "competent" in conversation before they meet it in a rulebook. These are typical points, with the safest way to think about each (general practice).

• "I have been doing this for years." Experience is one part of competence, but rules and equipment change, so it may need to be topped up.
• "I have a certificate for it." A certificate is evidence of training. It does not remove the need to understand the conditions on the day.
• "Someone has to sign this off." Ask who is suitably competent for that kind of check. It should be someone who knows what a safe condition looks like.
• "We are short of people." Being short of staff never makes an untrained person competent. Raise it with the supervisor.
• "I can learn as I go." Learning on the job needs supervision and instruction first, not instead.

For the wider picture of who carries which duty, see worker responsibilities on site, and for more vocabulary, the site safety terms overview.

How it can appear in practice questions

Practice questions on this topic often put a worker in a situation where they are asked to do something outside their training. In practice questions like the ones on this site, the safest answer is usually to stop, explain and ask for instruction. This site cannot say what the official test asks. Try scenarios on the free practice questions page, and remember that practice is not an official result. For the official test format, check the CITB pages.

You can also see how this term connects to others in the site safety terms overview.

FAQ

Sources

• HSE: Construction
• Legislation.gov.uk: Management of Health and Safety at Work Regulations 1999
• Legislation.gov.uk: Construction (Design and Management) Regulations 2015

Independent guide, not affiliated with, authorised by, approved by or endorsed by CSCS or CITB. Last updated 2026-10-08.