What is a DVS rating?

Understanding the DVS Star Rating System

03/01/2011

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The Direct Vision Standard (DVS), a crucial component of London's Vision Zero initiative, aims to eliminate deaths and serious injuries on the capital's transport network. At its core, the DVS measures how much a Heavy Goods Vehicle (HGV) driver can see directly through their cab windows. This visibility is then translated into a star rating, ranging from zero stars for limited visibility to a commendable five stars for excellent direct vision. This rating is not arbitrary; it's intrinsically linked to the vehicle's design and directly indicates the potential risk posed to vulnerable road users, such as pedestrians and cyclists.

What is a DVS rating?
The DVS measures how much an HGV driver can see directly through their cab windows. This is then expressed as a star rating from zero (limited) to five (good). The star rating is fixed and dependent on the vehicle design, as it indicates the level of risk to road users such as people walking and cycling.
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What is the Direct Vision Standard?

The Direct Vision Standard (DVS) is a set of regulations introduced by Transport for London (TfL) to improve the safety of HGVs operating in the city. The primary goal is to enhance the driver's direct view of the road and its surroundings, thereby reducing the likelihood of accidents involving cyclists and pedestrians. The DVS focuses on the physical design of the HGV, specifically the size and placement of cab windows, which directly influence the driver's ability to see directly ahead and to the sides. This is measured and assigned a star rating from zero to five.

The HGV Safety Permit Scheme

Complementing the DVS is the HGV Safety Permit Scheme. This scheme mandates that all HGVs weighing over 12 tonnes gross vehicle weight (GVW) must possess a valid safety permit to operate within Greater London. The permit is a direct reflection of the vehicle's compliance with the DVS requirements. Crucially, the scheme is operational 24 hours a day, every day of the year, and applying for a permit is free of charge. This ensures that safety is a constant consideration for all heavy goods vehicles entering the city.

Star Ratings Explained

The star rating system is designed to be straightforward, categorising vehicles based on their direct vision capabilities:

  • Zero Stars: Indicates very limited direct vision from the cab.
  • One Star: Offers slightly improved direct vision compared to zero-star vehicles.
  • Two Stars: Represents a basic level of direct vision.
  • Three Stars: Demonstrates a good level of direct vision.
  • Four Stars: Signifies excellent direct vision.
  • Five Stars: The highest rating, indicating superior direct vision.

It's important to understand that the star rating is generally assigned at the point of manufacture and is fixed. Operators cannot change a vehicle's star rating; it is a reflection of the vehicle's inherent design.

The Progressive Safe System

A significant update to the scheme has been the introduction of the 'Progressive Safe System.' Previously, vehicles with a zero, one, or two-star rating could operate under 'legacy Safe System' conditions. However, these conditions expired on 27 October 2024 at 23:59. Therefore, any vehicle with a zero, one, or two-star rating must now be fitted with the Progressive Safe System to be eligible for a new permit. The Progressive Safe System typically involves a combination of enhanced safety features, which may include:

  • Blind Spot Information Systems (BSIS)
  • Moving Off Information Systems (MOIS)
  • Cameras and sensors
  • Audible warnings

The specific requirements for the Progressive Safe System can be found in the official DVS Guidance for Operators.

Checking Your Vehicle's Star Rating and Permit Status

TfL provides a convenient 'vehicle permit checker' tool on their website. This allows operators to easily check the star rating and safety permit status of their vehicles. This is an essential step in the application process and for ongoing compliance.

Applying for an HGV Safety Permit

For Newly Registered Vehicles

Owners of newly registered vehicles should initiate the permit application process as early as possible, even if the Vehicle Registration Mark (VRM) is not yet known to TfL. If TfL cannot find details matching your VRM, you will need to provide:

  • Proof of the vehicle's star rating from the manufacturer.
  • A copy of your V5C log book (or its non-UK equivalent).

If you don't yet have a V5C, alternative documentation such as a copy of the DVLA's 'View Vehicle Record' or an email from the manufacturer confirming the star rating can be accepted. Documents must be in JPG, PNG, or PDF format and no larger than 10MB.

Self-Certifying Your Vehicle Star Rating

For vehicles with a known zero, one, or two-star rating where TfL does not hold details, operators can self-certify. This process requires uploading a written statement as part of the application. This statement must be in English and include:

  • Your name
  • Vehicle Registration Mark (VRM)
  • Vehicle make and/or model
  • Confirmation of self-certification
  • The specific star rating being self-certified (zero, one, or two stars)

Once self-certified and confirmed by TfL, you can apply for the permit under Progressive Safe System conditions.

Vehicles Registered Outside of the UK

HGVs registered outside the UK also need a valid safety permit to operate in Greater London. The application process is similar, with non-UK equivalents of registration documents accepted. If the VRM is not found, proof of star rating from the manufacturer and the country's equivalent of a V5C log book are required.

Specific Considerations

Left-Hand Drive Vehicles

Left-hand drive HGVs over 12 tonnes GVW must also comply with DVS regulations. Appropriate mirrors, cameras, and sensors should be fitted to mitigate the blind spot on the vehicle's right-hand side. Audible warnings for right-turn manoeuvres are also recommended. For rear trailer blind-spot warning signs, stickers legally required in France ('Angles morts') are acceptable.

Cherished Plate Transfers

An HGV safety permit is tied to a specific VRM and cannot be transferred. If a cherished plate transfer occurs, the existing permit must be cancelled, and a new application made to ensure the vehicle still meets safety requirements with the new VRM.

Vehicle Exemptions

A limited number of vehicles are exempt from the HGV Safety Permit Scheme. These include specialist construction vehicles primarily intended for off-road use, such as telehandlers and mobile cranes. If your UK-registered vehicle is clearly defined as fully exempt, this will be automatically applied. However, it is advisable to check your vehicle's star rating. For non-UK registered vehicles or those not recognised as exempt, contact TfL with relevant documentation and photos.

Showman's Discount

Vehicles benefiting from an active 100% Showman's discount are exempt from the DVS and HGV Safety Permit Scheme.

Vehicles Type Approved to UNECE Regulations

Vehicles type-approved to UNECE Regulations 151 and 159, which include a Blind Spot Information System (BSIS) and a Moving Off Information System (MOIS) at the point of manufacture, may not require an additional Camera Monitoring System (CMS) if the same safety benefits are achieved. This can apply if a CMS is fitted as part of the BSIS or to replace mirrors.

Abnormal Loads

Vehicles carrying abnormal indivisible loads may have structural characteristics that prevent BSIS and MOIS from functioning effectively. If these characteristics are permanent, the vehicle can be exempted from fitting BSIS and MOIS, but must still obtain a safety permit and install other components of the Progressive Safe System.

Key Takeaways

The DVS and HGV Safety Permit Scheme are vital for ensuring the safety of all road users in London. Understanding your vehicle's star rating, the requirements of the Progressive Safe System, and the permit application process is essential for any operator of HGVs over 12 tonnes GVW. Compliance ensures not only legal operation within Greater London but also contributes to a safer environment for everyone.

Frequently Asked Questions (FAQs)

What is the minimum star rating required for an HGV to operate in London?

From 27 October 2024, all HGVs over 12 tonnes GVW need a safety permit. Vehicles with zero, one, or two stars require the Progressive Safe System fitted to receive a permit. Three, four, and five-star rated vehicles are generally compliant with the DVS.

Can I change my vehicle's star rating?

No, the star rating is determined by the vehicle's design at the point of manufacture and cannot be changed by the operator.

Is the HGV Safety Permit application free?

Yes, applying for an HGV safety permit is free of charge.

What happens if my vehicle doesn't have the required star rating or safety system?

HGVs operating in Greater London without a valid safety permit, or those not meeting the DVS requirements, may receive a Penalty Charge Notice (PCN).

Where can I find the official DVS Guidance for Operators?

The guidance is available on TfL's Direct Vision Standard and HGV Safety Permit Scheme page.

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