Every haulier knows the motor policy is compulsory. Fewer have read the line where it stops - and the industry’s worst uninsured losses live exactly there: the injury in the customer’s yard, the damage at the dock, the member of the public hurt by the load rather than the vehicle. Public liability cover exists for that territory, and the boundary between it and the motor policy deserves a working map.
Two covers are mandatory by law. Motor insurance: third-party cover for death, injury and property damage arising from the use of the vehicle on a road or public place - the baseline every vehicle must carry to be legal at all. Employers’ liability: cover for injury to employees arising from their work, compulsory for any business with staff, with the certificate requirement and the inspection regime behind it.
Everything beyond that pair is voluntary in law and compulsory in practice - because customers, ports and sites demand it contractually, and because the risks it covers are real, frequent and uninsured without it.
Walk the boundary with real cases. The reversing incident at the customer’s dock that crushes the gatehouse wall: property damage while the vehicle is in use - the motor policy’s third-party property section is the first port, subject to its limits and terms. The forklift loading incident that injures the customer’s own employee: not the insured vehicle ‘in use’ in the motor sense, not your employee - this is public liability territory, and without the policy it is your balance sheet. The load that falls from the curtain as the doors open at delivery, breaking the consignee’s leg: again PL, because the injury arises from the goods and the handling, not the driving. The pedestrian who trips over the tail lift left down on the street while the driver is inside: arguable both ways - which is precisely the argument that the two insurers will have with each other unless the covers are coherent.
That last case teaches the practical lesson: the boundary is contested ground. Motor and public liability should come from insurers who know each other’s position - or the same insurer - so that a boundary claim is one company’s internal accounting rather than two companies’ three-year dispute with your claim in the middle.
Three questions shape a working PL policy. The limit: sites and customers set the floor contractually - many demand £5 million or £10 million - and the premium difference between limits is usually small against the contractual doors a low limit closes. The activities: the policy must describe what the business actually does - carriage, yes, but also warehousing, loading with own equipment, work at customers’ premises - because the claim outside the described activities is the claim outside the policy. And the conditions: the health-and-safety warranties and reasonable-precautions clauses that connect the cover to the safety case - a broken safety regime can put the insurance at risk exactly when the injury it caused needs it.
Motor and employers’ liability are the compulsory pair; public liability is the voluntary essential that covers what the vehicle’s use does not - loading injuries, load damage, premises incidents. Buy it with limits the customers demand, activities that match the real operation, and motor and PL covers that will not argue the boundary while your claim waits.
Like the fleet’s other covers, PL pricing follows the risk story the business tells: the documented safety management - risk assessments for loading and yard work, training records, the near-miss log - is underwriting evidence as much as compliance evidence, and brokers who can present it negotiate from strength. The excess is the other lever: a meaningful voluntary excess prices the small attritional claims out of the policy and reserves the cover for the losses that matter, which is usually the right trade for a fleet with working safety routines. And the claims history is the compounding asset: five clean years on a properly described policy is the cheapest insurance the fleet owns, and every unmanaged claim spends it.
Much of the haulier’s PL exposure happens on other people’s premises, where the safety rules are someone else’s and the liability is shared. The discipline that keeps it manageable: drivers briefed to follow site rules and induction - and to stop when the site asks for something unsafe, because the injury caused while freelancing against the site’s own rules is the claim both insurers argue over; the near misses on customer sites reported home and raised with the customer, because the pattern found in the reports is the injury found before it happens; and the contractual layer read - the site terms that try to push all risk onto the visiting carrier, which belong in the same review as the insurance schedule. Yards and docks are where the trucks stop moving and the liability keeps moving.
Motor covers the vehicle in use; employers’ liability covers your people; public liability covers the wide territory in between - the loading, the load, the customer’s premises. Buy limits the sites demand, describe the activities honestly, keep motor and PL under one roof where possible, and run the safety regime the policy’s conditions assume. The gap between the covers is only a gap until someone fills it.