Learn everything about the D4 form and how Driver Medicals are essential for HGV, PCV, and taxi drivers in the UK. Find out when you need it, how to complete it, and where to book affordable, fast appointments.
Introduction: Why the D4 Form Matters
If you’re a professional driver in the UK, especially of a lorry, bus, or coach, the D4 form is a critical document. It’s required as part of your Driver Medical—a legal necessity for ensuring you’re medically fit to operate heavy or passenger-carrying vehicles. Whether you’re applying for your HGV license, renewing your PCV entitlement, or just entering the industry, understanding the D4 form is a must.
At Precision Driver Medicals, we simplify the process. Our experienced GMC-registered doctors perform DVLA-compliant medicals quickly and affordably—so you can get back on the road safely and legally.
What Is the D4 Form?
The D4 form is a medical examination report required by the Driver and Vehicle Licensing Agency (DVLA) for:
- New applications for Group 2 licenses (HGV or PCV)
- Renewing Group 2 licenses, typically every 5 years after age 45
- License applications for those with certain medical conditions
It includes a full medical check, an eye test, and a review of your overall fitness to drive heavy vehicles. A registered medical professional must complete the form.

Who Needs a D4 Medical?
You’ll need a Driver Medical and D4 form if you fall into any of the following categories:
HGV Drivers
Anyone applying for or renewing a Category C, C1, or CE license will need a completed D4 form.
PCV Drivers
Drivers of buses and coaches (Categories D, D1, DE, or D1E) must undergo a medical exam as part of their licensing.
Taxi & Private Hire Drivers
While not all councils require the D4 form specifically, many still follow similar Group 2 medical standards. Always check with your local licensing authority.
What’s Included in a Driver Medical?
At Precision Driver Medicals, we follow all DVLA guidelines when completing your D4 form. A typical Driver Medical includes:
- Vision test (both eyes, with and without corrective lenses)
- Blood pressure check
- Medical history review (e.g. diabetes, epilepsy, cardiovascular issues)
- Height and weight measurement
- Neurological and psychiatric health questions
When Should You Complete the D4 Form?
Here’s a quick guide to when a D4 form and medical exam are required:
| Situation | D4 Required? |
|---|---|
| First-time HGV/PCV application | ✔️ Yes |
| Renewing after age 45 (every 5 years) | ✔️ Yes |
| Renewing after age 65 (annually) | ✔️ Yes |
| Medical condition disclosure | ✔️ Yes |
| Applying for a taxi badge (some councils) | ⚠️ Possibly |

How to Fill Out the D4 Form
- Download the form from the DVLA website or get one through a DVLA application pack (D2).
- Book your Driver Medical with a licensed provider like Precision Driver Medicals.
- Bring a photo ID, any current prescriptions or glasses, and your driving license.
- Our doctor completes the form during your medical.
- Submit your completed D4 form along with your license application or renewal.
Common Questions About Driver Medicals and the D4 Form
Can My GP Complete the D4 Form?
Yes, but GPs are often expensive and fully booked. At Precision Driver Medicals, we offer quick, affordable appointments nationwide.
How Long Is a D4 Medical Valid?
The form is valid for 4 months from the date of completion. Please submit it to the DVLA promptly.
What If I Fail the Medical?
Don’t panic. Depending on the issue, you may still be eligible for restrictions or by providing additional medical reports. We can advise on the next steps.
Why Choose Precision Driver Medicals?
We specialise in Precision Driver Medicals, including all assessments required for the form. Here’s why professional drivers across the UK choose us:
DVLA-compliant: Our doctors are GMC-registered and trained in DVLA Group 2 standards
Affordable pricing: Fixed transparent fees with no hidden costs
Flexible locations: Clinics available across the UK
Fast appointments: Book same-day, evening, or weekend slots
Paperwork handled: We complete your form onsite during your exam
Tips for a Smooth Driver Medical Experience
- Get a good night’s sleep before your appointment
- Avoid caffeine and salty foods (which can raise blood pressure)
- Bring glasses or contact lenses if you use them
- Declare any medical conditions honestly
- Book early, especially if your renewal deadline is approaching
Final Thoughts: Your D4 Form Done Right
The form is not just paperwork—it’s your gateway to a safe and legal career as a professional driver. Whether you’re applying for your first license or renewing after age 45, your medical must meet DVLA standards.
At Precision Driver Medicals, we make the process simple, fast, and affordable. Book online today and take the first step towards securing or renewing your driving entitlement with confidence.

