Facilities must be a safe working environment and should include: 

• undercover accommodation for the largest vehicle in the fleet. This is required to ensure that safety checks can be conducted satisfactorily in all weathers (depending on fleet size the building may need room for more than one vehicle at a time) 

• tools and equipment appropriate to the size and nature of the fleet 

• an adequate under-vehicle inspection facility 

• adequate lighting • access to brake test equipment (for example, a roller brake tester, decelerometer) 

• access to headlamp test equipment 

• brake temperature sensing device (if relevant for the fleet) 

• tread depth gauge • tyre pressure gauge 

• access to on-board diagnostic equipment (if relevant for the fleet) 

• access to emissions testing equipment 

• access to steam or pressure under-vehicle washing facilities If an operator fails to maintain vehicles in a safe and roadworthy condition with the facilities provided the Traffic Commissioner may take regulatory action

Guide to maintaining roadworthiness: commercial goods and passenger carrying vehicles (publishing.service.gov.uk)