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LEV testing - compliance
Health and safety compliance often turns on a competent person - the risk assessment done by one, the LEV tested by one, the task supervised by one. But competent has a specific meaning here, and it isn't just anyone available or willing. It means someone with the right training, knowledge and experience to do the particular task properly. Here is what competent person really means in compliance, and why it matters. This is general information, not legal advice.
The short answer
The phrase competent person runs through health and safety compliance - a competent person to assess the risk, to test the LEV, to check the equipment, to advise. It sounds straightforward, but it has a specific meaning that's easy to underestimate: it doesn't mean whoever is around, available, or willing to have a go. It means someone with the right training, knowledge and experience to do that particular task properly. Here's what it really means, and why it matters. This is general information, not legal advice. The core meaning. A competent person is someone who has the training, knowledge, experience and ability to carry out a particular task properly and safely. Two elements combine. Training and knowledge: understanding the task, the hazards involved, and how to do it correctly - the theoretical and learned side. And experience and ability: having actually done the task (or similar), and being able to apply the knowledge in practice, dealing with the real situations that come up - the practical side. So a competent person both knows what they're doing and can actually do it; knowledge without practical ability, or practical habit without real understanding, isn't full competence. Competence is task-specific. A crucial point: competence is specific to the task. Someone competent to do one thing isn't automatically competent at another. A person competent to operate or service a machine may not be competent to test the LEV on it; someone competent at general maintenance may not be competent to carry out a risk assessment or an LEV thorough examination. So competence has to match the particular task in question - you can't assume a generally capable or qualified person is competent for any given safety task. This is why 'we've got a handy person who does all sorts' doesn't answer whether they're competent for a specific compliance task. Why it matters in compliance. Competence matters because many health and safety duties specifically require a competent person. Risk assessments should be done by someone competent to assess the risk. LEV thorough examination and testing must be done by a competent person (someone with the knowledge and experience to properly assess the system). Various checks, supervision, and safety advice require competence. So where the law or good practice asks for a competent person, using someone who isn't genuinely competent doesn't meet the requirement - even if a task gets done, it isn't done by the right person. The point of the requirement. The reason the competence requirement exists is that a safety-critical task done by someone not genuinely competent may be done wrong without anyone realising. A risk assessment by someone who doesn't really understand the hazards may miss key risks; an LEV test by someone without the knowledge and equipment may pass a system that isn't actually controlling the exposure. The failure is hidden - it looks like the task was done (there's a piece of paper), but it wasn't done reliably. So the competence requirement protects the quality and reliability of the task, not just its existence. It's there so the safety task actually achieves its purpose. Competence for LEV specifically. For LEV testing, a competent person has the knowledge (of how LEV works, how contaminants behave, how to assess capture and performance), the equipment (to measure the system properly), and the experience (to interpret what they find and judge whether the system controls the exposure). Someone without that competence can't reliably establish whether the LEV is working - they might run through some motions, but they can't genuinely assess it (covered in the who-is-competent-to-carry-out-an-lev-examination page). So the competent-person requirement for LEV testing is about the test being a real, reliable assessment. The takeaway. So a competent person in compliance is someone with the training, knowledge, experience and ability to carry out a particular task properly and safely - a specific requirement, not a label for whoever is available. Competence is task-specific (competent at one thing isn't competent at all), it's required for many duties (risk assessment, LEV testing, and more), and it matters because competence is what makes a safety-critical task reliable rather than just done. Using someone not genuinely competent can leave the task - and you - exposed. This is general information, not legal advice. This is general information.
Key points
The core meaning
A competent person is someone who has the training, knowledge, experience and ability to carry out a particular task properly and safely. Two elements combine. Training and knowledge: understanding the task, the hazards involved, and how to do it correctly - the learned side. And experience and ability: having actually done the task (or similar) and being able to apply the knowledge in practice, handling the real situations that arise - the practical side.
So a competent person both knows what they're doing and can actually do it. Knowledge without practical ability (someone who's read about a task but never done it) isn't full competence; nor is practical habit without real understanding (someone who goes through motions without grasping why). Competence is the combination - the understanding and the proven ability to apply it. This is more than holding a qualification or a job title: it's the actual capability to do the specific task properly. So the core meaning - training, knowledge, experience and ability - sets what competence really is: genuine capability for the task, not a label. Its task-specific nature follows. So competence is real capability, knowledge plus proven ability. This is general information. This is general information.
Competence is task-specific
A crucial point: competence is specific to the task. Someone competent to do one thing isn't automatically competent at another. A person competent to operate or service a machine may not be competent to test the LEV on it; someone competent at general maintenance may not be competent to carry out a risk assessment or an LEV thorough examination and test. So competence has to match the particular task in question.
This means you can't assume a generally capable, experienced or qualified person is competent for any given safety task - the competence has to be for that task. 'We've got a handy person who turns their hand to all sorts' doesn't answer whether they're competent for a specific compliance task like LEV testing or a risk assessment; those need their own competence. This task-specific nature is why competence is assessed against the task, not the person in general. It's also why bringing in someone competent for a specialist task (like LEV testing) matters - general competence around the workshop isn't the same as competence to assess an LEV system. So competence is task-specific - competent at one thing isn't competent at all - is a key qualifier: match the competence to the task, don't assume it transfers. Why compliance requires it follows. So match competence to the specific task, don't assume it carries over. This is general information. This is general information.
Why compliance requires it
Competence matters because many health and safety duties specifically require a competent person. Risk assessments should be done by someone competent to assess the risk. LEV thorough examination and testing must be done by a competent person - someone with the knowledge and experience to properly assess the system. Various checks, supervision and safety advice require competence too. So where the law or good practice asks for a competent person, that's a real requirement, not a formality.
This means using someone who isn't genuinely competent doesn't meet the requirement, even if the task gets done in some form. A risk assessment filled in by someone who doesn't really understand the hazards, or an LEV 'test' by someone without the knowledge and equipment, hasn't been done by the right person - so the duty isn't properly met, whatever paperwork results. So the competent-person requirement is a substantive one: it's about who does the task, because that determines whether it's done reliably. This is why, for tasks like LEV testing, using a genuinely competent person (in-house if they truly have the competence, or a competent external provider) matters for compliance. So why compliance requires it - many duties specifically need a competent person - is the practical stakes: competence is a real requirement for many safety tasks, not optional. The reason behind it follows. So the law requires competence for many tasks - it's not optional. This is general information, not legal advice. This is general information.
The point of the requirement
The reason the competence requirement exists is that a safety-critical task done by someone not genuinely competent may be done wrong without anyone realising. A risk assessment by someone who doesn't really understand the hazards may miss key risks; an LEV test by someone without the knowledge and equipment may pass a system that isn't actually controlling the exposure. The failure is hidden: it looks like the task was done - there's a completed form, a certificate - but it wasn't done reliably.
So the competence requirement protects the quality and reliability of the task, not just its existence. It's there so the safety task actually achieves its purpose - a risk assessment that genuinely identifies the risks, an LEV test that genuinely establishes whether the system controls the exposure. A task done by an incompetent person is arguably worse than one not done at all, because it creates false reassurance: you think the risk is assessed or the LEV is proven, when it isn't. So the requirement guards against that hidden failure. So the point of the requirement - it stops safety tasks being done wrong unnoticed - is the underlying purpose: competence ensures the task is genuinely done, not just apparently done. What competence means for LEV specifically follows. So competence guards against hidden, unnoticed failure of the task. This is general information. This is general information.
Competence for LEV testing
For LEV testing, a competent person has the knowledge (of how LEV works, how contaminants behave, how to assess capture and performance), the equipment (to measure the system properly - airflows, capture, pressures), and the experience (to interpret what they find and judge whether the system genuinely controls the exposure). All three are needed to carry out a real thorough examination and test.
Someone without that competence can't reliably establish whether the LEV is working: they might run through some motions or fill in a form, but without the knowledge, equipment and experience they can't genuinely assess the system (covered in the who-is-competent-to-carry-out-an-lev-examination and what-makes-someone-competent-to-test-your-lev pages). So the competent-person requirement for LEV testing is about the test being a real, reliable assessment of whether the exposure is controlled - which is the whole point of testing. This is why LEV thorough examination and testing must be done by a competent person: only genuine competence produces a test you can rely on. So competence for LEV testing - knowledge, equipment and experience to assess it - is the concrete case: LEV testing needs a genuinely competent person to be a real test, not a going-through-the-motions. So LEV testing needs a genuinely competent person to be reliable. This is general information. This is general information.
Questions
Someone with the training, knowledge, experience and ability to carry out a particular task properly and safely - a specific requirement, not a label for whoever is available or willing; it combines understanding the task and hazards with the proven ability to do it in practice. In health and safety compliance, a competent person is someone who has the training, knowledge, experience and ability to carry out a particular task properly and safely. It's a specific requirement, not just a label for whoever is available, willing, or generally handy. Competence combines two things: training and knowledge (understanding the task, the hazards involved, and how to do it correctly - the learned side) and experience and ability (having actually done the task or similar, and being able to apply the knowledge in practice, handling the real situations that arise - the practical side). So a competent person both knows what they're doing and can actually do it: knowledge without practical ability isn't full competence, and practical habit without real understanding isn't either. Competence is more than holding a qualification or a job title - it's the actual capability to do the specific task properly and safely. It's also task-specific: someone competent at one task isn't automatically competent at another. This meaning matters because many health and safety duties (risk assessments, LEV testing, and more) specifically require a competent person, and the requirement is there to ensure the safety task is genuinely done well, not just apparently done. So it means real, task-specific capability to do the task properly. So genuine capability for the task - not just anyone available. This is general information, not legal advice. This is general information.
No - competence is task-specific and means genuine capability for the particular task, so a generally qualified, experienced or available person isn't automatically competent for a given safety task; competent at one thing isn't competent at all, so the competence has to match the specific task in question. No - a competent person is not just anyone qualified or available, and assuming so is a common mistake. The key reason is that competence is task-specific: someone competent to do one thing isn't automatically competent at another. A person competent to operate or service a machine may not be competent to test the LEV on it; someone competent at general maintenance may not be competent to carry out a risk assessment or an LEV thorough examination. So you can't assume a generally capable, experienced, or even qualified person is competent for any given safety task - the competence has to be for that particular task. 'We've got someone handy who does all sorts' doesn't answer whether they're competent for a specific compliance task; that task needs its own competence (the right knowledge, experience and ability for it). Nor does simply being available or willing make someone competent - competence is about genuine capability, not availability. This is why, for specialist safety tasks like LEV testing, you need someone with competence specifically for that (which may mean a competent external provider), rather than assuming general competence around the workplace covers it. So a competent person is defined by real, task-matched capability, not by being qualified in general or simply available. So no - competence must match the specific task, not just exist in general. So no; competent at one task isn't competent at all. This is general information. This is general information.
Because a safety-critical task done by someone not genuinely competent may be done wrong without anyone realising - a flawed risk assessment or an inadequate LEV test that looks done but isn't reliable; the requirement protects the quality and reliability of the task, so it actually achieves its purpose rather than just producing paperwork. Compliance requires a competent person because a safety-critical task done by someone who isn't genuinely competent may be done wrong without anyone realising - and that hidden failure is exactly what the requirement guards against. Consider the risk: a risk assessment done by someone who doesn't really understand the hazards may miss key risks; an LEV test done by someone without the knowledge and equipment may pass a system that isn't actually controlling the exposure. In both cases, it looks like the task was done - there's a completed form or a certificate - but it wasn't done reliably. The failure is hidden behind the appearance of completion, which creates false reassurance: you think the risk is assessed or the LEV is proven, when it isn't. So many health and safety duties (risk assessments, LEV thorough examination and testing, various checks and advice) specifically require a competent person, to ensure the task is genuinely done well, not just apparently done. The competence requirement protects the quality and reliability of the safety task - so it actually achieves its purpose - rather than just requiring that some form is filled in. A task done by an incompetent person can be worse than one not done, because of the false reassurance it creates. So compliance requires competence to make safety-critical tasks reliable. So because competence is what makes the safety task genuinely reliable, not just done. This is general information, not legal advice. This is general information.
Yes - LEV thorough examination and testing must be done by a competent person, someone with the knowledge (of how LEV works and how to assess it), the equipment (to measure it properly) and the experience (to interpret and judge whether it controls the exposure); without that competence, the test can't reliably establish whether the system works. Yes - LEV testing needs a competent person. LEV thorough examination and testing must be done by a competent person, meaning someone who genuinely has the capability to assess the system properly. That competence has three parts for LEV: the knowledge (of how LEV works, how contaminants behave, how to assess capture and performance), the equipment (to measure the system properly - airflows, capture velocities, pressures), and the experience (to interpret what they find and judge whether the system is genuinely controlling the exposure). All three are needed to carry out a real thorough examination and test. Without that competence, someone can't reliably establish whether the LEV is working - they might run through some motions or fill in a form, but they can't genuinely assess the system, so the resulting 'test' isn't reliable. This is why the competent-person requirement for LEV testing matters: it's about the test being a real, reliable assessment of whether the exposure is controlled, which is the entire point of testing. A test by someone not competent can pass a system that's actually failing, leaving people exposed while everyone believes they're protected. So LEV testing must be done by a genuinely competent person - in-house only if they truly have that competence, or a competent external provider. So yes - a competent person is required for LEV testing to be reliable. So yes; only genuine competence makes the LEV test reliable. This is general information. This is general information.
Not automatically - competence is task-specific, so being competent at one task (say servicing a machine, or general maintenance) doesn't make someone competent at another (say testing LEV or doing a risk assessment); each task needs its own competence, matched to that task's knowledge, experience and ability. No, not automatically - competence in one task doesn't cover another, because competence is task-specific. Being competent at one thing means having the training, knowledge, experience and ability for that thing - which doesn't necessarily transfer to a different task with different requirements. For example: someone competent to operate or service a machine isn't automatically competent to test the LEV that serves it (LEV testing needs its own specialist knowledge, equipment and experience); someone competent at general workshop maintenance isn't automatically competent to carry out a risk assessment or an LEV thorough examination; and being competent at one type of safety task doesn't make someone competent at all of them. Each task needs its own competence, matched to that task's particular knowledge, experience and ability requirements. This is why you can't reason 'they're clearly capable and experienced, so they can do this too' for a safety-critical task - the competence has to be for the specific task. It's also why specialist tasks (like LEV testing) often need someone with competence specifically for them, rather than assuming a generally competent person can cover it. So competence has to be assessed and matched task by task, not assumed to carry across from one task to another. So not automatically - each task needs its own matched competence. So no; competence is specific to each task. This is general information. This is general information.
The task may be done wrong without anyone realising - a risk assessment that misses hazards, or an LEV test that passes a failing system - creating false reassurance that the risk is controlled when it isn't; that hidden failure can leave people exposed and the duty unmet, which is what the competence requirement exists to prevent. The risk of using someone who isn't genuinely competent is that the safety-critical task gets done wrong without anyone realising - a hidden failure that's arguably worse than not doing the task at all. Because the task appears to be done (there's a completed risk assessment, an LEV certificate), everyone assumes the risk is handled - but if the person wasn't competent, it may not be. A risk assessment by someone who doesn't really understand the hazards can miss key risks, leaving them uncontrolled. An LEV test by someone without the knowledge and equipment can pass a system that isn't actually controlling the exposure, leaving people breathing a hazard while everyone believes they're protected. The danger is the false reassurance: the paperwork says it's fine, so no one looks further, and the real failure sits hidden until it causes harm (a worker's health affected, an incident, or an HSE finding that the task wasn't properly done). There's also the compliance risk - a duty that requires a competent person isn't properly met if the person wasn't competent, whatever paperwork exists. So using someone not genuinely competent can leave the task, the people it was meant to protect, and you exposed. This is exactly what the competent-person requirement exists to prevent. So the risk is a hidden, false-reassurance failure that leaves people exposed. So the task can fail unnoticed, leaving people exposed and the duty unmet. This is general information, not legal advice. This is general information.
LEV thorough examination and testing must be done by a competent person - someone with the knowledge, equipment and experience to genuinely assess whether the system controls the exposure; that's what we bring to testing LEV, so your test is a real, reliable assessment, as COSHH requires. Ask us to test your LEV. This is general information.