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.
Car or motorcycle licence
You don’t need to tell DVLA if you have a left bundle branch block.
Bus, coach or lorry licence
You must tell DVLA if you have a left bundle branch block.
Fill in form VOCH1 and send it to DVLA. The address on the form.