Revised HGV Inspection Manual available


The Driver and Vehicle Standards Agency (DVSA) has updated its Heavy Goods Vehicle (HGV) Inspection Manual, a comprehensive document intended for everyone who takes part in HGV examinations and maintenance.

It explains acceptable reasons for failure, the application of specific relevant requirements and sets out procedures and standards used during testing. It also highlights that deficiencies found during the test will be categorised as minor, major or dangerous.

The DVSA emphasises that the vehicle/trailer must be clean enough to allow the component parts to be inspected, must not present a health and safety hazard to inspect and must be appropriately loaded.

In addition, the vehicle chassis number or DVSA issued trailer identification mark must be permanently fixed to the vehicle in an accessible, easy to read position.

Available at, the manual is 187 pages long and is a revised and updated version of the edition published in 2018.

Notes at the beginning of the manual give brief details of the updated sections which include: Exhaust Emissions; Road Wheels and Hubs; Sideguards, Rear Under-run Devices and Bumper Bars; Steering Control and Axles; Stub Axles and Wheel Bearings; and Hand Lever Operating Mechanical Park Brakes and Electronic Park Brake controls.

Also updated are the following sections: Brake System and Components; Markers and Reflectors; Service brake performance; and Lamps.

The manual uses definitions of vehicles taken from EU directives as follows:

  • N2: Vehicles used for the carriage of goods and having a maximum mass exceeding 3500kg but not exceeding 12,000kg

  • N3: Vehicles used for the carriage of goods and having a maximum mass exceeding 12,000kg

  • O3: Trailers with a maximum mass exceeding 3500kg but not exceeding 10,000kg

  • O4: Trailers with a maximum mass exceeding 10,000kg.

Last reviewed 6 February 2019

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