Direct Vision Standard (DVS)

The Direct Vision Standard is a zero to five star rating system that measures the driver's direct visibility from the cab of any heavy goods vehicle (HGV). This will indicate the level of risk to vulnerable road users (VRUs) near to the vehicle.

Below shows the direct visibility that a driver of an 'off-road' or 'construction specification' N3G category vehicle has.

Direct Vision Standard - Star Rating

Vehicle manufacturers now assign a DVS rating to vehicles as they come out of the factory. A record of star ratings will be kept by the vehicle manufacturer and passed on to TfL.

Every vehicle must meet a minimum of one star rating* to be able to apply for a permit. If your vehicle does not meet the DVS star rating or is not rated, you will need to meet the ‘Safe System’ requirements to be granted a permit.

Check your vehicle star rating here

If your vehicle star rating is not recorded on the TfL site, you will need to submit information from the manufacturer before they can grant you a permit.

Contact your manufacturer, provide the chassis number (VIN) and the manufacturer will then calculate the star rating of your vehicle based on the approved DVS technical protocol and send you a document or email confirming your vehicle's DVS star rating.

Any DVS rating advised will reflect the specification of the vehicle at first stage manufacture; multi-stage manufacture and later modifications are not reflected in the DVS rating. Your manufacturer will be able to advise.

To submit a star rating from your manufacturer, you can upload the confirmation they've sent you through the TfL Make an enquiry form. They will then update their records so you can apply for a permit.

Manufacturer Contact Details

  • DAF Central engineering - +44 (0)1844 261111 -
  • Dennis Eagle -
  • MAN Sales engineering - +44 (0)1793 448000 -
  • Renault Product engineering - +44 (0)1926 401777 -
  • Scania Product engineering - +44 (0)1908 210 210 -
  • Volvo Sales engineering - +44 (0)1926 401 777 -
  • Mercedes-Benz -
  • Iveco Product engineering -

If your vehicle does not meet the DVS star rating or is not rated, you will need to meet the ‘Safe System’ requirements to be granted a permit.

What can Dun-Bri Group do for you?

We can offer free technical support and guidance from our knowledgeable team on the products required to bring your vehicle in line with the new legislation. With thousands of auto-electrical products in stock we can offer fast next day delivery and should you require fitting of said goods then look no further. The Dun-Bri Fit team are qualified and experienced auto-electrical engineers who can fit, service and transplant equipment from and to your fleet. We can even make the fitting process even easier by preparing the goods for installation before they leave us. Our in house engineering team can produce wiring looms and harnesses.

Want to know more?

Check out the links below to see some of the products available from Dun-Bri Group or if you need any further information or guidance please do not hesitate to contact us on +44 (0)1763 274185, visit your local branch, at

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