HGV Rear Markings Explained

Official rear-marking example

Which vehicles the Highway Code identifies

The Highway Code shows rear markings for motor vehicles over 7,500kg maximum gross weight and trailers over 3,500kg maximum gross weight. It also states that vertical markings are required on commercial vehicles or combinations longer than 13 metres and are optional on combinations between 11 and 13 metres.

Do not choose a board by appearance alone. The operator should identify what is required for the vehicle or combination, and the driver should check the fitted item rather than improvise a replacement.

Walkaround check

• present in the required location and orientation
• secure and not lifting away from the body or board
• clean and visible
• not covered by doors, equipment, straps, load or dirt
• not so damaged or faded that its function is impaired

Record the defect using the operator's normal process. Where the requirement or roadworthiness is uncertain, ask before departure.

Conspicuity markings

DfT and DVSA explain that conspicuity markings reflect the headlights of following vehicles and show the outline of an HGV at night. The DfT and DVSA guide cited below explains which vehicles are in scope, permitted colours, placement and partial or contour marking arrangements.

Check the full vehicle and trailer outline required for the equipment, including areas affected by repairs, replacement bodywork, tail lifts or attachments.

Projection markers

The Highway Code says side and end markers are both required when a load or equipment, such as a crane jib, overhangs the front or rear by more than 2 metres. Projection rules can require more than the marker itself, so the transport office must confirm the full arrangement for the load.

Official sources

• The Highway Code: Vehicle markings, updated 22 October 2025
• DfT and DVSA: HGV conspicuity marking rules, updated 24 July 2025

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