You may need to tell DVLA about your diabetes, depending on how it’s treated and the licence you have.

You can be fined up to £1,000 if you don’t tell DVLA about a medical condition that affects your driving. You may be prosecuted if you’re involved in an accident as a result.

Diabetes treated by Sulphonylureas or Glinide tablets (or both)

Car or motorcycle licence

You don’t need to tell DVLA. Read leaflet INF188/2 to find out more about driving with diabetes.

Bus, coach or lorry licence

You must tell DVLA. Fill in form VDIAB1SG and send it to DVLA. The address is on the form.

Download leaflet INS186 if you want to apply for vocational entitlement to drive larger vehicles (C1, C1E, D1, DIE, C, CE, D or DE).

Diabetes treated by any other tablets or non-insulin injections

Car or motorcycle licence

You don’t need to tell DVLA. For further information read leaflet INF188/2.

Bus, coach or lorry licence

You must tell DVLA. Fill in form VDIAB1GEN and send it to DVLA. The address is on the form.

Read leaflet INS186 if you want to apply for vocational entitlement to drive larger vehicles (C1, C1E, D1, DIE, C, CE, D or DE).

Diabetes treated by insulin

Car or motorcycle licence

You must tell DVLA. Fill in form DIAB1 and send it to DVLA. The address is on the form.

Read ‘A guide to filling in your DIAB1 medical form’ to get help with filling in DIAB1.

Bus, coach or lorry licence

You must tell DVLA. Fill in form VDIAB1I and send it to DVLA. The address is on the form.

Read leaflet INS186 if you want to apply for vocational entitlement to drive larger vehicles (C1, C1E, D1, DIE, C, CE, D or DE).

Diabetes treated by diet

Car or motorcycle licence

You don’t need to tell DVLA. Read leaflet INF188/2 for more information.

Bus, coach or lorry licence

You don’t need to tell DVLA. For further information read leaflet INF188/5 for more information.

Read leaflet INS186 if you want to apply for vocational entitlement to drive larger vehicles (C1, C1E, D1, DIE, C, CE, D or DE).

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