When an employee’s role involves high-risk work, it is important to understand whether they are medically able to carry out their duties safely—for themselves, colleagues and, where relevant, the public.
Clarity provides safety-critical medical assessments for employers across the UK. We help you create a practical, risk-based programme around your roles, working environment, sector requirements and operational needs.
Whether you are reviewing existing arrangements or arranging assessments for a specific workforce, we will guide you through the appropriate options and help you put a clear process in place.
A safety-critical medical is an occupational health assessment used to consider whether an individual is medically fit to carry out work where impaired health, reduced capability or a sudden medical event could create a significant safety risk.
This may include risks arising from loss of consciousness, impaired vision or hearing, reduced mobility, poor balance, respiratory difficulty, cardiovascular conditions, medication effects or other health factors relevant to the role.
The assessment is not a general health check. It is a structured, role-relevant review of an individual’s fitness to carry out safety-critical duties safely.
It can help employers:
Make informed decisions about safe work allocation.
Identify where temporary restrictions, adjustments or further assessment may be appropriate.
Support workforce planning for high-risk roles.
Demonstrate a structured approach to managing occupational health risks.
Review fitness when there has been a change in role, health, work circumstances or safety concerns.
A safety-critical medical complements risk assessment, training, supervision, safe systems of work and competency management. It does not replace them.
Clarity delivers safety‑critical assessments using generic, evidence‑based templates and fixed clinical standards (including DVLA Group 2 for safety‑critical medicals), rather than designing bespoke assessments for every task or environment.
We know that removing safety-critical employees from busy operational roles can be difficult. Assessments can be planned through on-site clinics, mobile medical units and local clinic appointments, depending on the assessment requirements and workforce location.
You receive clear fitness outcomes and practical recommendations to support safe workplace decisions. Outcomes may include fit, fit with recommendations or restrictions, temporarily unfit pending further information, or not fit for specified duties.
Safety-critical medicals can sit alongside health surveillance, management referrals, driver medicals, audiometry, respiratory surveillance and other occupational health services. This can help create a more coordinated programme for employees exposed to multiple workplace risks.
A role may be safety-critical where a health issue, sudden incapacity or reduced physical or sensory capability could create a serious risk of injury or harm.
Typical examples include:
The right assessment is determined by the role and risks involved—not job title alone.
A safety‑critical medical is a structured assessment carried out by appropriately qualified occupational health clinicians. While the exact content is tailored to the role and risk profile, it will typically include a combination of:
Medical history and health questionnaire
Vision testing (including colour vision where required)
Hearing assessment (audiometry)
Blood pressure and cardiovascular checks
Respiratory assessment (e.g. spirometry, where indicated)
Musculoskeletal review related to role demands
Height, weight and BMI
Urinalysis and other relevant screening based on the role
Where appropriate, additional elements – such as hand‑arm vibration (HAVS) assessments, skin surveillance or night‑worker assessments – can be incorporated to ensure the medical remains aligned to your overall risk assessment.
All our safety‑critical medicals are carried out to DVLA Group 2 standards wherever applicable, and Clarity’s clinicians provide a clear fitness‑for‑work outcome (e.g. fit, fit with restrictions, or unfit) along with practical recommendations to support safe placement and management.
There is no single validity period that applies to every safety-critical role.
The appropriate schedule depends on:
Role demands and the consequences of sudden incapacity.
Age, health factors and clinical findings.
Sector, client or contractual standards.
Relevant driving or licensing rules.
Workplace risk assessment and task analysis.
Any significant change in health, medication, role or incident history.
As an example, HSE advises workplace-transport operators should be screened before employment and at five-yearly intervals from age 45, with annual assessment after age 65. Other sectors may require different intervals; construction guidance may, for example, recommend three-yearly periodic examinations with shorter review periods for certain findings or older workers.
We can help you agree a schedule that is clinically appropriate, practical to administer and aligned with your workforce risks.
The appropriate standard depends on the sector, role and legal or client requirements.
For HGV and PSV drivers, Group 2 medical standards and DVLA requirements apply. HSE also recommends screening workplace-transport operators for fitness before employment and at five-yearly intervals from age 45; for those continuing beyond 65, annual fitness assessments are advised.
For forklift-truck, plant or other workplace-transport roles, employers should consider medical fitness in the context of task risk, workplace environment, emergency procedures and their own risk assessment. A Group 2 standard may be adopted where appropriate, but it is not automatically required for every operator.
Some clients and sectors set their own defined safety-critical standards. For example, construction and highways work may require specific assessment components, review frequencies or additional health-surveillance elements based on work near traffic, work at height, plant operation or similar hazards.
We can help you align your programme with the relevant role standards and workplace requirements, without applying unnecessary assessment elements that do not add value.
A safety-critical medical may need to be reviewed earlier than the routine schedule where there is a significant change in health, a relevant diagnosis or medication change, prolonged absence, incident, work-related concern or change in job duties.
Following an assessment, employers receive a clear occupational health outcome relevant to the employee’s role. This may indicate:
Fit for specified duties.
Fit with recommendations, restrictions or adjustments.
Temporarily unfit pending further information, treatment or review.
Not fit for specified safety-critical duties.
Reports focus on the employee’s functional fitness and practical workplace recommendations. They do not provide managers with the employee’s full medical history or confidential clinical records.
Health information is handled under clinical-governance and data-protection arrangements. Employees should understand the purpose of the assessment, how their information will be used and what outcome information may be shared with the employer.
Whether you are introducing a safety-critical medical programme, reviewing your current provider or responding to a role, client or workforce change, Clarity can help.
Tell us about the work your employees carry out, your locations and your practical requirements. We will guide you through the available options and help you put a programme in place that supports safer work and fits around your operations.
A safety-critical medical is an occupational health assessment that considers whether an individual is medically fit to undertake work where impaired health or sudden incapacity could create a significant risk to themselves, colleagues or the public.
Employees may need a safety-critical medical where their roles involve high-risk work, such as professional driving, workplace transport, plant operation, work at height, confined spaces, construction, utilities, rail, hazardous processes or other duties identified through risk assessment.
Not always. DVLA Group 2 standards apply to bus and lorry drivers and may be used as a benchmark for relevant driving or vehicle-operation roles. Other safety-critical roles should be assessed against the requirements of the job, workplace risk assessment and any applicable sector or client standards.
The assessment is designed around the role and may include medical history, vision, hearing, blood pressure, cardiovascular screening, respiratory assessment, musculoskeletal review, urinalysis and other relevant checks. Not every role needs every assessment element.
A full safety-critical medical usually requires a face-to-face appointment because it may include objective measurements, physical examination and testing. Remote contact may be suitable for pre-assessment information gathering, triage or follow-up where clinically appropriate.
Frequency depends on the role, risks, age, clinical findings and any sector or client standard. For workplace transport operators, HSE advises screening before employment and at five-yearly intervals from age 45, with annual assessments after age 65. Other roles may follow different schedules.
Employers receive an outcome relevant to the employee’s role, such as fit, fit with recommendations or restrictions, temporarily unfit pending review, or not fit for specified duties. Managers receive practical functional advice rather than full confidential medical details.
Yes. Where suitable, assessments can be delivered on site or through a mobile medical unit. Clinic appointments can also be arranged for individual employees or where particular assessment facilities are required.
Yes. Safety-critical medical information is handled under clinical-governance and data-protection arrangements. Employers receive the relevant fitness outcome and workplace recommendations, while confidential clinical details remain protected.
Tell us about your workforce, sites and requirements. We will call you to discuss a practical occupational health solution and the most suitable delivery options.
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