Every transport business knows its duties for the trucks it owns. Far fewer apply the same rigour to the vehicles it does not own - the sales rep’s car, the supervisor’s pickup, the manager’s hatchback on a cash allowance. That is the grey fleet, and the Health and Safety Executive is explicit: the law applies to both company and grey fleet vehicles, and a grey fleet vehicle is simply one owned and driven by a worker for business purposes - vehicles used under cash allowance schemes are grey fleet too.
HSE’s driving-for-work guidance starts from first principles: as an employer you must manage health and safety risks to workers who drive a vehicle or ride a motorcycle, powered two-wheeler or bicycle on the road as part of a work activity, because health and safety law applies to work activities on the road in the same way as on a fixed site. Driving for work, HSE notes, is one of the most dangerous things workers will do. The duty reaches beyond payroll employees to anyone engaged to work for you in the gig economy - limb (b) workers and self-employed people included. Commuting is generally not classified as driving for work, except where someone’s journey starts from home and they travel to a work location that is not their normal place of work.
The uncomfortable implication: the employer who would never send an unmaintained truck out with an over-hours driver may be doing exactly that every day through a privately owned car nobody has ever checked, driven by someone nobody considers “a driver”.
HSE requires a risk assessment as part of health and safety arrangements, structured around three areas: the journey, the driver or rider, and the vehicle. The hazards it names read like a description of a normal working day - roadworks, traffic and congestion; vehicle condition; fatigue and distraction; time pressures; the weather; and the behaviour of other road users. Lone and vulnerable workers need specific thought - a lone worker is someone who works by themselves without close or direct supervision, a definition that expressly includes those working away from a fixed base such as delivery drivers and couriers. Employers must also consult workers about health and safety, and consider access to suitable welfare facilities for drivers and riders. The guidance organises the response as “safe journey, safe driver or rider, safe vehicle” - plan the work so the driving is necessary and sensibly scheduled, make sure the person is fit, trained and not pressured, and ensure the vehicle is suitable and maintained.
The grey fleet problem is that none of the company-fleet controls exist by default. The fixes are straightforward in principle. Vehicle: require evidence that the private vehicle is roadworthy - MOT where applicable, serviced, and critically insured for business use, because a personal policy does not cover work journeys beyond commuting. Driver: check licences with the same diligence as for vocational drivers, and record points and restrictions. Journey: apply the same thought to scheduling and time pressure as for the truck fleet - a rep given six appointments across four counties is a fatigue and speeding risk the employer has created. And record it all: a grey fleet register showing vehicle, insurance, MOT, licence and check dates is what turns “we told them to keep their car legal” into a managed system.
For a haulage business the grey fleet is a reputational trap: a company that runs exemplary trucks but lets an office worker drive 20,000 business miles a year on an unchecked car has a compliance gap exactly where nobody looks. HSE’s framework makes no distinction - work driving is work driving, whatever the badge on the bonnet. Bringing the grey fleet inside the same risk assessment, the same checks and the same records as the owned fleet closes the gap - and it usually costs little more than the discipline of asking for the documents once a year.
The hardest part of grey fleet management is often cultural: telling staff their own car is now, for work purposes, inside the company’s safety system. Framing helps. The employer is not auditing anyone’s personal life - the duty attaches only to the business journeys, and the documents requested are the ones any responsible driver has anyway: licence, insurance with business use, MOT, evidence of servicing. Most resistance dissolves when the ask is proportionate and the reason is explained honestly: driving for work is one of the most dangerous things workers do, and the company is responsible for the risk whether the vehicle has its logo on it or not. A simple annual declaration, a register, and the same journey-sense applied to car trips as to truck trips is usually the whole programme. Small effort, real risk closed - and no surprises if the worst day ever arrives.