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Maintenance · UK

Source hierarchy for EV decisions

We match each claim to the most direct competent source for that claim type. Primary law and responsible regulators lead legal claims, while safety and model-specific claims require the relevant safety authority or manufacturer evidence. A lower source cannot widen a current E3 safety limit or turn an operator statement into an independent observation.

The National Archives: The Public Charge Point Regulations 2023, Regulation 7

Reviewed

Key facts and evidence

For UK EV content reviewed on 13 August 2026, source priority follows the question: controlling law for duties, responsible government or regulator material for policy and data, and competent safety or manufacturer evidence for technical limits. Operator reports remain attributed reports. The limit is claim-level fit; a prestigious but indirect source does not outrank narrower evidence or the stricter E3 safety contract.

The National Archives: The Public Charge Point Regulations 2023, Regulation 7

The source order used for UK legal, safety, technical, operator and data claims, including how narrower and stricter evidence wins.

Safety and technical scope

HSE, fire and rescue authorities, recognised standards bodies and exact manufacturer information support the parts within their competence. The E3 action table remains the publication ceiling: its stricter class, advice, warnings and hand-off are retained even when a general source describes professional work in greater detail.

First-party and operator data

A first-party source may establish what that organisation reports, charges, warrants or instructs. It does not independently verify performance. Operator-reported annual reliability, raw observed status, a controlled measurement and a model output occupy separate fields and are never silently merged.

Secondary material

Media, retailer copy, forums, social posts, search snippets and fixtures may help locate a primary source but do not support a published safety, legal, price or performance conclusion. If the direct source cannot be admitted, the affected value becomes unknown or the page shows an honest empty state.

What to do next

Use the hierarchy to judge support for a claim, while following the dedicated page for any safety, driving or charging decision.

Immediate action: Open the cited source and confirm that its jurisdiction, date and claim scope match the statement.

  • Stop using a conclusion when only an indirect, stale, out-of-jurisdiction or unattributed source remains.

Professional hand-off

  • Refer unresolved legal scope to an appropriate adviser, technical safety scope to the competent professional for that system, and source disputes to editorial review.

Questions this record can answer

What does the sourced evidence say about safety and technical scope?

HSE, fire and rescue authorities, recognised standards bodies and exact manufacturer information support the parts within their competence. The E3 action table remains the publication ceiling: its stricter class, advice, warnings and hand-off are retained even when a general source describes professional work in greater detail.

What does the sourced evidence say about first-party and operator data?

A first-party source may establish what that organisation reports, charges, warrants or instructs. It does not independently verify performance. Operator-reported annual reliability, raw observed status, a controlled measurement and a model output occupy separate fields and are never silently merged.

Sources