Health information for transport work

Diabetes, driving and safer journeys

Practical, source-linked information for people managing diabetes in transport roles. It can help you prepare for a conversation or a journey, but it does not diagnose diabetes, interpret a reading, prescribe treatment or decide whether you are fit to drive.

Check current DVLA guidance Diabetes UK driving guide

Use this as a safety reminder, not a personal decision

Diabetes treatment, licence group, health history and the circumstances of a journey all matter. If this page differs from your diabetes team, a current DVLA update or the plan agreed for you, follow the more current individual advice. Do not use DriverWell to decide a treatment, reporting or fitness-to-drive question.

Practical routine

Before you set off

These prompts are particularly relevant if your treatment means you are at risk of hypos. They summarise current DVLA and Diabetes UK driving-safety information, not a personal clinical plan.

  1. 1

    Follow the plan agreed with your diabetes team and the current official driving rules that apply to you.

  2. 2

    If your treatment puts you at risk of hypos, take an appropriate way to check glucose with you before you travel.

  3. 3

    Check just before setting off and, where the current rules require it, at least every 2 hours on a longer journey.

  4. 4

    Keep quick-acting carbohydrate within reach, and carry the spares or back-up equipment your diabetes team recommends.

  5. 5

    Take regular meals, snacks and breaks. Do not delay them to finish a run or meet a schedule.

  6. 6

    If a device reading does not match how you feel, do not rely on the device alone. Follow your clinical plan and stop safely if needed.

Official threshold reminder

Glucose before driving

The current DVLA insulin-treated diabetes leaflet gives the following safety guidance. It applies alongside the requirements and plan relevant to you.

4.0 mmol/L or below

Do not drive. Treat a hypo in line with your agreed plan and check again before considering travel.

Between 4.0 and 5.0 mmol/L

The current DVLA insulin leaflet says to eat a fast-acting carbohydrate snack before driving.

5.0 mmol/L or above

Use the current official guidance and your own clinical plan. This is not an individual fitness-to-drive decision from DriverWell.

Read the current DVLA information leaflets

If a hypo starts while driving

Stop safely and give yourself time

The DVLA leaflet for insulin-treated diabetes says to pull over safely as soon as possible, switch off the engine and remove the keys. Treat the hypo in line with your agreed plan. It says not to resume driving until at least 45 minutes after glucose has returned to 5.0 mmol/L or above, so that concentration and reaction time can recover.

A clear pause is a safety action
Never push on to complete a delivery, reach a depot or keep to a timetable when you have warning symptoms or feel unwell.
Read Diabetes UK hypo-driving guidance

Reporting and licence questions

Start with the current official route

The DVLA position depends on your licence group and treatment. These are current starting points from GOV.UK, not a substitute for checking the detail that applies to you.

Bus, coach and lorry driving

Group 2 rules can be different from car and motorbike rules. Check the current GOV.UK page rather than relying on a general summary.

Insulin treatment

Current GOV.UK guidance says Group 2 drivers must stop driving and tell DVLA when they start insulin. DVLA decides when driving can resume.

Tablets, injections or diet

The official route separates Group 1 and Group 2 rules by treatment. Check it with your clinician if you are unsure what applies to you.

Open GOV.UK diabetes and driving guidance

Private learning activity

Diabetes driving-safety knowledge check

Use these four questions to revisit the key points on this page. Your choices stay only on this page and are cleared if you reload or choose “Try again”. They are not sent to DriverWell, an employer, an operator or any other organisation.

This is not a medical assessment, a licence check or proof that you are fit to drive. Use the official source and your own clinician or diabetes team for individual decisions.

Question 1.If the current DVLA rules say you need to check glucose on a longer journey, what is the maximum interval between checks?
Question 2.What does the current DVLA insulin-treated diabetes leaflet say to do if glucose is 4.0 mmol/L or below before driving?
Question 3.If you have warning symptoms of a hypo while driving, what is the first safety action?
Question 4.Where should you confirm the reporting or licence rule that applies to your own treatment and licence group?

Offline reference

Diabetes driving-safety summary

Download a two-page A4 summary of the source-linked safety prompts, hypo steps, DVLA starting points and official support routes. It is information and signposting only, not an individual clinical or licensing decision.

Download PDF summary

More support

Trusted information and next steps

Use an NHS or diabetes-team route for symptoms, treatment or health concerns. If you have symptoms of diabetes or are worried about how you are managing, NHS guidance explains when to contact a GP or NHS 111.

NHS

NHS diabetes information

Plain-English information about diabetes, symptoms, testing, treatment routes and longer-term health care.

Open source
Diabetes UK

Diabetes UK driving guide

A detailed driving checklist, hypo information and support for people managing diabetes alongside work and travel.

Open source
GOV.UK

DVLA diabetes and driving

The current official reporting rules, forms and licence-group information. Use this for the exact rule that applies to you.

Open source
General food guidance for transport work Back to health information

Sources checked 22 September 2026: NHS diabetes information, Diabetes UK driving and diabetes guidance, and GOV.UK diabetes and driving guidance. DriverWell will review this page when a relevant official source changes.