Fitness to drive and occupational risk

01Role and principlesWho benefits and the main preventive aims.

Driving assessment begins with the task and current function. Confirm Group 1 or Group 2 licence, ordinary and professional mileage, vehicle type and recent collisions, near misses or police contact. Ask about concentration, reaction, judgement, impulsivity, hallucinations, delusional interpretation, mood, suicidal use of a vehicle, panic, dissociation, sleep, substance use and adherence. Review medicine initiation and changes, daytime sedation, blurred vision, tremor and hypotension. A diagnosis alone neither proves safety nor permanent unfitness.

For Great Britain, use the current DVLA Assessing fitness to drive guide and the relevant psychiatric-disorder standard. The duty to notify usually lies with the driver, and requirements vary by syndrome, severity, insight, stability, treatment and licence group. Group 2 standards are typically stricter because of vehicle size and passenger or occupational exposure. Northern Ireland uses the DVA and its procedures. Give explicit interim advice to stop when current symptoms or treatment make driving unsafe, even while formal criteria are checked.

If the patient may be unfit, explain the clinical evidence, likely notification requirement, consequences of driving and route to review or relicensing. Encourage self-notification and offer help with the form or relevant report. Document advice and provide written information. Review driving at follow-up rather than assuming the licensing agency has been informed. If the patient refuses to stop or notify and continues to expose others to death or serious harm, GMC guidance supports relevant disclosure to the licensing authority. Tell the patient first unless doing so would itself create danger.

Occupational assessment is job specific. Clarify essential tasks, shift pattern, fatigue, lone work, driving, heights, weapons, controlled substances, children, vulnerable people and rapid decision making. The treating clinician manages health and can describe functional limits; the employer or occupational physician determines workplace arrangements. With consent, provide the minimum information needed, often capability, restrictions, likely duration and review rather than detailed diagnosis or psychotherapy content. Consider Equality Act duties and reasonable adjustments without promising a particular employment outcome.

Safety and recovery can coexist. Temporary removal from night shifts, driving, weapons, operating machinery or unsupervised clinical practice may allow treatment and graded return. Assess professional reporting duties separately for regulated occupations and seek defence, occupational-health or regulatory advice when serious concern persists. Confidentiality may be overridden only on a defensible legal or serious-harm basis, not employer preference. Reassess after symptom stability, sleep recovery, substance treatment and medicine adjustment with evidence relevant to the actual task.

Key points

Ask about licence type, vehicle, professional driving, recent incidents, near misses, sleep, cognition, impulsivity, psychosis, mood, substances and medicine effects.
Use the current DVLA medical-professional guidance for Great Britain or DVA route in Northern Ireland because standards differ by condition, severity, treatment and licence group.
Advise the patient clearly when they must stop driving and when they have a legal duty to notify the licensing agency, recording the exact discussion.
Do not provide an unsupported permanent ban or fixed interval from memory; check the current condition-specific standard and specialist requirements.
If a patient continues driving against advice and creates serious danger, make reasonable efforts to persuade them, explain possible disclosure and seek senior advice.
GMC guidance permits disclosure of relevant information to the licensing authority without consent when necessary to protect individuals or the public from death or serious harm.
Tell the patient before disclosure where practicable, share the minimum necessary facts with the correct agency and document reasoning and communication.
For safety-critical work, assess functional demands, hours, fatigue, access to weapons or machinery, lone work and treatment effects rather than diagnosis alone.
Use occupational health to consider temporary restriction, graded return and reasonable adjustment while preserving confidentiality and reviewing recovery.

02Assessment and patient selectionRisk features, eligibility and important cautions.

Immediate driving impairment

Current symptoms, intoxication, sleep loss or treatment effects materially impair attention, judgement, perception, reaction or impulse control for the intended journey.

Notification condition

The current licensing guide indicates that the driver must tell DVLA or DVA, with details depending on condition and licence group.

Public-danger refusal

The patient continues driving after clear advice despite a serious foreseeable risk, raising possible disclosure to the licensing authority without consent.

Safety-critical role

Work involves vehicles, machinery, heights, weapons, controlled drugs, vulnerable people or decisions where impairment could cause serious harm.

Supported return

Symptoms and adverse effects have improved enough for task-specific review, adjustment and staged restoration rather than an all-or-nothing employment judgement.

Red flags requiring action

Suicidal intent involving a vehicle, deliberate collision, driving to a lethal location or transporting a weapon requires emergency risk management beyond ordinary licensing advice.
Active psychosis, mania, severe depression, impaired attention, dissociation, sedating treatment, intoxication or withdrawal may make driving unsafe even before a formal licensing decision.
Group 2 bus and lorry standards are generally more stringent than Group 1 car and motorcycle standards, so licence category must be confirmed.
DVLA governs Great Britain, while the Driver and Vehicle Agency operates in Northern Ireland; notification and forms follow the relevant licensing authority.
An employer is not automatically entitled to diagnosis or therapy records; occupational disclosure should answer necessary functional and safety questions with consent wherever possible.

03Baseline assessmentMeasurements that guide the plan and track progress.

Investigation order

Read from the initial assessment onwards. Tests may run in parallel in urgent care; first-line, preferred, confirmatory, definitive and gold-standard labels appear only when the chapter explicitly states them.

01
Driving and incident historyFirst step
Why
Define licence group, exposure, professional use, collisions, near misses, police events and symptom-linked journeys.
Interpretation and limitations
Concrete recent behaviour informs immediate advice but does not replace the current licensing standard or clinical assessment.
02
Mental-state and functional driving assessment
Why
Assess attention, judgement, psychosis, mood, suicidality, impulse control, sleep and cognition relevant to driving.
Interpretation and limitations
Relate findings to the task and trajectory. A calm clinic interview may not represent motorway, night or commercial-driving demands.
03
Medicine and substance review
Why
Identify sedation, hypotension, visual change, slowed reaction, intoxication, withdrawal and interaction effects.
Interpretation and limitations
Risk is highest after initiation, dose change or unstable use; follow medicine-specific warnings and reassess rather than assuming tolerance.
04
Current licensing-standard check
Why
Verify DVLA or DVA notification, cessation, stability, specialist report and licence-group requirements.
Interpretation and limitations
Use the current published condition page because criteria change and differ between Group 1, Group 2 and UK licensing agencies.
05
Occupational task analysis
Why
Match impairment and treatment effects to essential duties, hazards, shifts, supervision and adjustment options.
Interpretation and limitations
Describe function and restriction proportionately; diagnosis alone rarely answers fitness for every role or justifies full-record disclosure.

04InterventionsLifestyle, treatment and escalation options.

01Driving adviceAssess, check and documentFirst stepA psychiatric condition or treatment may affect safe driving or notification duties.

1Clarify licence, exposure, incidents and current symptoms, cognition, sleep, substances and medicine effects.
2Check the current DVLA or DVA standard and advise cessation and notification explicitly where indicated, providing written information.
3Document the evidence, advice, patient response and review plan and reassess actual driving behaviour at follow-up.

02Continued dangerous drivingPersuade, warn and disclose if necessaryThe patient remains seriously unsafe, refuses notification and intends to keep driving.

1Explain the serious danger and legal duties, encourage self-notification and explore support to stop, including family involvement with consent.
2Tell the patient that relevant information may be disclosed, and seek senior, Caldicott, defence or legal advice when time permits.
3If necessary to prevent death or serious harm, disclose the minimum relevant facts to the correct licensing authority and document all steps.

03Occupational safetyRestrict tasks without unnecessary disclosureSymptoms or treatment may impair a safety-critical job function.

1Define essential duties and hazards and agree immediate temporary restrictions where current impairment could cause serious harm.
2With consent, refer to occupational health and provide a focused functional report, likely duration and review rather than unrelated clinical detail.
3EscalationPlan adjustment and graded return, reviewing symptoms, adverse effects and task performance and escalating regulatory issues through the correct professional route.

05Targets, monitoring and follow-upResponse, safety and longer-term review.

Ask directly whether driving stopped and DVLA or DVA notification occurred, because written advice alone does not confirm public safety.
Review after medicine initiation, dose change, relapse, intoxication, sleep disruption and licence or occupational decision.
Track collisions, near misses, work incidents and functional performance without using their absence as proof of safety during severe symptoms.
Update occupational restrictions and expected duration, avoiding indefinite exclusion when task-specific recovery can be demonstrated.
Document any non-consensual disclosure, the serious-harm rationale, information sent, recipient and whether the patient was informed.

06Special situationsVariants, exceptions and circumstances that change the usual approach.

Agency depends on nation

DVLA covers Great Britain, whereas Northern Ireland drivers use DVA processes; similar clinical facts can require different forms and contacts.

Group changes threshold

Bus and lorry licensing usually demands stricter evidence and stability than car and motorcycle licensing because consequences and exposure differ.

Treating clinician is not employer

Clinicians describe health and function; occupational health and employers assess job design, adjustments and organisational risk within their roles.

Disclosure follows danger

The justification for contacting a licensing body without consent is prevention of death or serious harm, not punishment for disagreement.

Recovery can be staged

Temporary restrictions and graded return preserve safety while recognising that psychiatric symptoms and medicine effects often change with treatment.

07Common pitfallsFrequent interpretation and management errors.

01
Giving a remembered fixed driving ban without checking current DVLA or DVA guidance.
02
Failing to distinguish Group 1 from Group 2 licensing standards.
03
Assuming diagnosis alone makes a person permanently unfit to drive or work.
04
Advising notification but never checking whether the patient stopped driving.
05
Sending full psychiatric notes to an employer when a focused functional report would suffice.
06
Breaching confidentiality for occupational convenience without a serious-harm or legal basis.
07
Ignoring suicidal use of a vehicle while discussing routine licence paperwork.