Is your HGV equipped with a Blind Spot Information System (BSIS)?

05 August 2025

If your business operates Heavy Goods Vehicles (HGVs) in London, it’s important to stay up to date with the latest safety regulations.

Transport for London (TfL) has introduced updated vehicle safety standards aimed at reducing accidents when vehicles are turning left. One key requirement is the installation of Blind Spot Information Systems (BSIS) on qualifying HGVs.

What is a BSIS and why does it matter?

A BSIS is a safety system designed to detect pedestrians, cyclists, and other road users in a driver’s blind spot, particularly when making left turns. These systems are critical for improving visibility and reducing the risk of collisions, especially in busy urban areas.

Does your vehicle need one?

• Newer HGVs: Most modern vehicles already come fitted with BSIS as standard.

• Older vehicles: If you’re operating an older model, it may need a BSIS retrofit to meet compliance.

What should operators do?

• Already fitted? Ensure your system is fully functional and regularly maintained.

• Not fitted? You’ll need to retrofit a compliant BSIS system. The specific requirements may vary depending on your vehicle type.

Retrofitting guidance available

The UK government has published detailed guidance for fitting BSIS to different vehicle configurations, including:

• Rigid HGVs with bodywork forming part of the sideguard

• Vehicles with rail-based sideguards

• Articulated tractor units

• HGVs fitted with extra protective panels

For detailed fitting requirements and compliance guidelines, visit the official GOV.UK page on retrofitted BSIS systems.

Stay safe, stay compliant

If you’re unsure whether your vehicles are compliant, get in touch with us at Backhouse Jones.

This article was written by James Backhouse.