Medium sized goods vehicles
Category C1
A medium sized lorry with a maximum authorised mass (MAM) of at least 4 tonnes, at least 5 metres in length, capable of 80 km/h (50 mph) and with a closed box cargo compartment at least as wide and as high as the cab.
Category C1 + E
There are two types of test vehicle in the C1 + E category.
* A drawbar outfit made from a combination of a category C1 vehicle towing a trailer of at least 2 tonnes MAM with a combined length of at least 8 metres, capable of 80 km/h (50 mph) and with a closed box trailer at least as high and as wide as the towing vehicle. The trailer may be slightly less wide than the towing vehicle, but the view to the rear must be by use of external mirrors only.
* A medium sized articulated lorry with a MAM of at least six tonnes with a combined length of at least 8 metres, capable of 80 km/h (50 mph) and with a closed box trailer at least as high and as wide as the towing vehicle. The trailer may be slightly less wide than the towing vehicle, but the view to the rear must be by use of external mirrors only.
Large goods vehicles
Category C
A rigid goods vehicle with a MAM of at least 12 tonnes, at least eight metres in length and least 2.4 metres in width, capable of 80 km/h (50 mph). The vehicle should have at least eight forward ratios, a closed box cargo compartment at least as wide and as high as the cab.
Category C + E
There are two types of test vehicle in the C + E category.
* A drawbar outfit made from a combination of a category C vehicle and trailer with a MAM of 20 tonnes and a length of at least 7.5 metres from coupling eye to extreme rear and a combined length of at least 14 metres with a trailer at least 2.4 metres in width. The vehicle combination should be capable of 80 km/h (50 mph), with at least 8 forward ratios and a closed box cargo compartment at least as wide and as high as the cab.
* An articulated lorry with a MAM of at least 20 tonnes, with a minimum length of 14 metres and and minimum width of at least 2.4 metres. The maximum length of the vehicle is 16.5 metres (54 feet) or for a low-loader trailer manafactured on or after 1 April 1981 the maximum length is 18 metres (59 feet). The vehicle should be capable of 80 km/h (50 mph) and have with at least 8 forward ratios and a closed box cargo compartment at least as wide and as high as the cab