FORS, CLOCS and DVS standards: a practical guide for UK fleet operators.

7 min read · 4 April 2026. Three different UK fleet standards, three different governing bodies, significant overlap, and one practical question for the operator: which ones actually apply to my fleet, and what does each one require? This guide explains FORS, CLOCS and DVS in plain terms, shows where they overlap, and sets out what each one means for an operator's day-to-day compliance work.

FORS — the Fleet Operator Recognition Scheme

FORS — the Fleet Operator Recognition Scheme — is a UK voluntary accreditation framework for fleet operators, originally established by Transport for London and now operated independently. It demonstrates that a fleet meets defined standards for safety, efficiency and environmental performance, and is the most widely recognised accreditation in the UK fleet industry.

FORS runs in three tiers — Bronze, Silver and Gold — each building on the previous one.

Bronze is the entry-level tier, awarded after an audit confirms basic safe and legal operation: driver licensing, insurance, vehicle maintenance, incident reporting, route planning, and the basic management systems sitting behind those processes. Bronze is the threshold most large UK clients and public-sector procurement frameworks require as a baseline.

Silver requires an operator to evidence measurable performance against KPIs — collision rates, fuel consumption, driver training completion — and to fit additional vehicle safety equipment, including side-detection sensors and class V/VI mirrors on relevant HGVs. Silver is widely required on London construction work.

Gold is the top tier. It requires sustained year-on-year improvement, advanced driver training programmes, demonstrable corporate sustainability commitment, and a culture of continuous improvement. Gold operators are a small minority of the FORS-accredited population.

CLOCS — Construction Logistics and Cycle Safety

CLOCS is a UK national standard governing the safety of construction logistics — specifically, how HGVs supplying construction sites are operated to reduce risk to vulnerable road users. It is administered by Construction Logistics and Community Safety, an industry body founded by Transport for London but national in scope.

CLOCS is not an accreditation in the same sense as FORS. It is a contractual standard: major UK construction clients (including Transport for London, Highways England, Crossrail and most large private developers) require their construction supply chain to operate CLOCS-aligned vehicles, with CLOCS-aligned drivers and CLOCS-aligned management systems.

The vehicle requirements overlap heavily with FORS Silver: side-detection systems, audible left-turn warnings, class V/VI mirrors, and prominent vulnerable-road-user warning signage. The driver requirements include awareness training on cycle and pedestrian safety. The management requirements include incident reporting and route risk assessment.

An operator already at FORS Silver typically meets the CLOCS vehicle and driver standards with minimal additional work — but the contractual demonstration is separate, and most major construction frameworks require both.

DVS — the Direct Vision Standard

The Direct Vision Standard (DVS) is a Transport for London scheme that rates HGVs over 12 tonnes operating in Greater London by how much the driver can see directly through the cab windows — measured against the cab's blind spots for vulnerable road users.

The rating runs from zero stars (poor direct vision) to five stars. To enter Greater London during the operational hours of the scheme, a vehicle must hold either a sufficient star rating (the threshold rises over time as the scheme matures) or a Progressive Safe System (PSS) permit, demonstrating the vehicle has been retrofitted with mitigating safety equipment: a camera-based monitoring system, ultrasonic side sensors, audible left-turn warnings and a moving-off information system.

Unlike FORS and CLOCS, DVS is mandatory for affected HGVs in London — operators driving an under-rated vehicle into the zone without a permit face a penalty charge per non-compliant journey. The scheme is enforced via ANPR cameras and is one of the most active fleet-compliance enforcement regimes in the country.

Which standards apply to which operators?

The practical answer depends on what the fleet does and where it operates.

General UK fleets without London operations: FORS Bronze is increasingly required by large clients and public-sector frameworks. CLOCS applies if the fleet supplies construction sites anywhere in the UK. DVS does not apply.

UK fleets operating in London: FORS Silver is typically required, CLOCS is required for construction work, and DVS applies to any HGV over 12 tonnes entering Greater London.

Construction logistics fleets: all three usually apply. FORS Silver as the procurement baseline, CLOCS as the construction-industry contractual standard, DVS for any London work.

Light commercial and grey fleets: none of the three typically applies in the strict sense — they are HGV-focused. The duty-of-care obligations under the Health and Safety at Work Act 1974 and the audit-trail requirements remain, of course, regardless of whether any voluntary scheme is in scope.

How fleet compliance software supports accreditation

FORS, CLOCS and DVS audits all rest on the same underlying evidence: driver licence checking records, vehicle maintenance and MOT history, incident reporting, training completion, fuel and mileage data, and route risk assessment. An operator already running good day-to-day compliance has most of the audit evidence already; the audit itself becomes a packaging exercise rather than a remediation one.

The platform underneath that evidence is fleet compliance software for UK operators — DVLA-integrated licence checks, MOT and tax tracking, automated driver communications, full audit trail. The product behind the platform is fleet compliance software, with the same data layer feeding our fleet intelligence platform for the operational signals (real MPG, driver behaviour, incident telemetry) that FORS Silver and Gold audits ask about specifically.

The pattern that fails an audit is rarely an absence of process; it is an absence of evidence. The operator did the licence checks but cannot produce the dated record. The vehicle was serviced but the workshop record is offline. The driver had the training but the certificate is not findable. Automated compliance solves the evidence problem before the audit asks.

The bottom line

FORS, CLOCS and DVS are different schemes addressing different problems, with overlapping evidence requirements and overlapping client demand. The operator who treats them as three separate exercises spends three times the effort. The operator who treats compliance as one integrated process — one source of truth for licensing, maintenance, training and incident records — has the FORS, CLOCS and DVS evidence as a by-product of the day job.

The standards are easier to pass than they look. The audit only finds you out if the underlying compliance is.

Frequently asked questions

What is FORS accreditation?

FORS is the Fleet Operator Recognition Scheme — a UK voluntary accreditation framework for fleet operators that demonstrates compliance with safety, efficiency and environmental standards. It runs in three tiers: Bronze (entry-level, evidence of basic safe and legal operation), Silver (improved performance against measurable benchmarks), and Gold (industry-leading performance and continuous improvement). Bronze is the threshold most large UK clients and public-sector procurement frameworks require as a baseline.

What is the Direct Vision Standard?

The Direct Vision Standard (DVS) is a Transport for London scheme that rates HGVs over 12 tonnes on how much the driver can see directly through the cab windows. The rating runs from zero stars (poor visibility) to five stars. To enter Greater London, a vehicle must hold either a sufficient star rating or a Progressive Safe System permit demonstrating the vehicle has been fitted with mitigating safety equipment such as cameras, sensors and audible warnings.

Do I need CLOCS if I operate in London?

CLOCS — Construction Logistics and Cycle Safety — is a national standard, not a London-specific one, but it has its strongest enforcement in London because it is written into the major construction frameworks operating there. If your fleet supplies a CLOCS-aligned construction site anywhere in the UK, the contractor will require evidence of CLOCS compliance — which overlaps substantially with FORS Silver. In London specifically, CLOCS, FORS and DVS are routinely required together.

What's the difference between FORS Bronze, Silver and Gold?

FORS Bronze is the entry tier — evidence of basic safe and legal operation, including driver licensing, insurance, vehicle maintenance and incident reporting processes. Silver builds on Bronze with measurable performance against KPIs (collision rates, fuel efficiency, training completion) and additional vehicle safety equipment requirements. Gold is the top tier, requiring sustained year-on-year performance improvement, advanced training programmes and a clear corporate sustainability commitment. Each tier has to be re-audited periodically, and operators routinely move up the tiers as their compliance maturity develops.