The D4 medical form is a mandatory document required by the DVLA for anyone applying for or renewing a Group 2 driving licence — including HGV, LGV, PCV, bus, taxi, and C1 licence holders. This is the most comprehensive guide to the D4 form you will find anywhere: how to download it, what each section means, how to fill it in correctly, common mistakes to avoid, and where to get your D4 medical done affordably.
Download the D4 Medical Form
You can download the official D4 medical form (also called the D4 medical examiner report) directly from the links below:
- Download D4 Medical Form (PDF) — Simply Medicals hosted copy
- Download from GOV.UK — Official DVLA page
Tip: You do not need to print the D4 form yourself. If you book your medical with Simply Medicals, we provide the D4 form and the D2 application form free of charge at all our clinics.
What Is the D4 Medical Form?
The D4 medical form is a health assessment document that must be completed by a registered medical practitioner. It provides the DVLA with your medical information to determine whether you meet the physical and mental health standards required to safely operate large vehicles.
The D4 form is used for:
- New provisional licence applications — Including C1, HGV (Category C), and bus/coach (Category D) licences
- Licence renewals — Required at age 45, then every 5 years until 65, then annually after 65
- Taxi and private hire licences — Many councils require a D4 medical for taxi badge applications
- Medical referrals from the DVLA — If the DVLA has asked you to provide medical evidence
The D4 form is normally submitted alongside a D2 application form (for new licences) or a D47P renewal form (pre-filled by the DVLA for renewals).
D4 Medical Form: Section-by-Section Guide
The D4 medical form is divided into several sections. Here is what each one covers and who fills it in:
Sections 1–9: Applicant Information (You Fill This In)
The first part of the D4 form is completed by you, the applicant. It includes:
- Your full name, date of birth, and address
- Your driving licence number
- Your medical history — including conditions such as epilepsy, diabetes, heart disease, sleep disorders, and mental health conditions
- Details of any medications you are currently taking
- A signed declaration confirming the information is accurate
Important: Be completely honest when filling in your medical history. Many conditions (including diabetes and high blood pressure) are perfectly compatible with holding a Group 2 licence as long as they are well managed. However, failing to disclose a condition can result in your licence being revoked and potential legal consequences.
Sections 10–13: Vision Assessment (Doctor Fills This In)
The doctor will carry out a thorough eyesight assessment, including:
- Number plate test — You must be able to read a number plate from 20 metres
- Snellen chart test — Minimum visual acuity of 6/7.5 in the better eye and 6/60 in the other
- Visual field assessment — Checking for any blind spots or peripheral vision issues
- Whether you wear glasses or contact lenses for driving
If you wear glasses or contact lenses, bring them to your appointment. At Simply Medicals, the eye test is included free of charge — you do not need to visit an optician separately.
Sections 14–21: Physical Health Examination (Doctor Fills This In)
This is the main medical examination section. The doctor will assess:
- Cardiovascular health — Blood pressure, heart rate, and any history of heart conditions. Blood pressure must generally be below 180/100 mmHg for Group 2 drivers
- Neurological conditions — Any history of epilepsy, blackouts, strokes, or neurological disorders
- Diabetes — Whether managed by diet, tablets, or insulin, and how well controlled it is
- Sleep disorders — Including sleep apnea, which must be treated and controlled
- Mental health — Any conditions that could impair your ability to drive safely
- General fitness — BMI, mobility, hearing, and any other relevant conditions
- Urinalysis — Testing for sugar and protein levels
At the end of the examination, the doctor signs the D4 form confirming whether you meet the DVLA’s Group 2 medical standards.
Common Mistakes to Avoid on the D4 Medical Form
At Simply Medicals, we have completed thousands of D4 medicals and see the same mistakes regularly. Avoid these to prevent delays:
1. Missing or Incorrect Personal Information
Mismatched names, wrong addresses, or incorrect driving licence numbers will cause your application to be returned. Double-check every field matches your official records exactly. Use black ink and block capitals for clarity.
2. Leaving Sections Blank
Blank fields are treated as missing information, not “not applicable.” Every section must be completed. If a question does not apply to you, write “N/A” or “None” rather than leaving it empty.
3. Not Disclosing Medical Conditions
Some drivers fear that declaring conditions like diabetes or high blood pressure will disqualify them. In reality, most conditions are acceptable if well managed. Not declaring them is far worse — it can lead to licence revocation and legal action.
4. Forgetting to Bring Supporting Documents
If you have ongoing conditions, bring recent consultant letters, test results, or prescription details. This helps the doctor complete the form accurately and avoids follow-up delays.
5. Forgetting Glasses or Contact Lenses
If you wear glasses or contacts for driving, you must bring them to the medical. Without them, you may fail the vision assessment and need to rebook.
Who Can Fill in the D4 Medical Form?
The D4 medical form must be completed by a doctor with full GMC registration in the UK. This can be:
- Your GP — However, GP surgeries typically charge £80–£150+ and waiting times can be weeks or even months
- A private medical provider — Such as Simply Medicals, where prices start from £49.99 with appointments available within 24 hours
Why Choose Simply Medicals for Your D4 Medical?
- From just £49.99 — up to 70% cheaper than your GP
- Eye test included free — no need to visit an optician separately
- D4 and D2 forms provided free — no need to print anything
- Appointments within 24 hours — evenings and weekends available
- 30+ locations across England — always a clinic near you
- 1,000+ reviews, 5-star rated
- GMC-registered doctors who have completed thousands of D4 medicals
Frequently Asked Questions
How much does a D4 medical cost?
At Simply Medicals, the D4 medical costs from £49.99. GP surgeries typically charge £80–£150+. Book your D4 medical here.
How long does a D4 medical take?
The D4 medical examination typically takes 15–20 minutes. You will receive your completed form immediately after the examination.
Where do I send the D4 medical form?
Send your completed D4 form along with your D2 application (or D47P renewal form) to: DVLA, Swansea, SA99 1BN. For taxi medicals, send it to your local council licensing department.
Can I download the D4 form online?
Yes. You can download the D4 medical form here or from the GOV.UK website. Simply Medicals also provides free printed copies at all clinics.
What happens if I fail the D4 medical?
If you do not meet the medical standards, the doctor will explain what the issue is. In many cases, conditions can be managed and you can retake the medical once treatment is in place. Read our guide on what happens if you fail your D4 medical.
Book Your D4 Medical Today
Need your D4 medical form completed? Simply Medicals offers fast, affordable D4 medicals from just £49.99 at over 30 clinic locations across England. All forms provided free, eye test included, appointments within 24 hours.
Book your D4 medical online now or call 0808 188 9112.
