2.3 Roles, Responsibilities & the Statutory/Non-Statutory Relationship

The Inspector's Role

The inspector is the competent person who carries out initial verification (on new installations, alterations, or additions) and/or periodic inspection (on existing installations to assess their condition). The 2391-52 qualification covers both activities, reflecting the dual nature of the award. The inspector's responsibilities include:

• Planning the inspection and testing activity, including a risk assessment of the testing process itself (per MHSWR 1999)
• Visual inspection of the installation against BS 7671 requirements — checking cable types, routing, protection, labelling, and accessories before any testing begins
• Testing using appropriate, calibrated instruments that comply with HSE GS38 — conducting continuity, insulation resistance, polarity, earth fault loop impedance, prospective fault current, and RCD tests in the correct sequence prescribed by GN3
• Recording results accurately on the appropriate BS 7671 model form — an Electrical Installation Certificate (EIC) for initial verification, or an Electrical Installation Condition Report (EICR) for periodic inspection
• Classifying observations using the standard coding system (C1, C2, C3, FI) for condition reports
• Signing the certification or report, thereby taking personal responsibility for its accuracy and completeness

The inspector owes a duty of care to the client, to future users of the installation, and to anyone who may reasonably rely on the report. This duty flows from both statutory law (EAWR, HASAWA) and common law (the tort of negligence).

How Statutory and Non-Statutory Interact

The relationship between statutory and non-statutory documents is the core of this chapter and a recurring exam theme:

1. EAWR (statutory) requires that all electrical systems be maintained and safe — it sets the legal duty.
2. BS 7671 and GN3 (non-statutory) provide the practical means to demonstrate that the duty is met — they set the technical standard.
3. EIC/EICR (the certification) is the documentary evidence that the inspection and testing were carried out and what was found.

In practice, an inspector who follows BS 7671 and GN3 procedures, uses calibrated GS38-compliant instruments, and produces accurate certification is well placed to demonstrate compliance with EAWR. Conversely, an inspector who departs from BS 7671 without good reason may struggle to defend their work if challenged in court or by a client.

A Practical Example

A periodic inspection reveals a circuit with earth fault loop impedance exceeding the BS 7671 tabulated value, meaning the protective device may not disconnect within the required disconnection time. The inspector records this as a C2 (potentially dangerous) observation on the EICR. Statutorily, the installation is not maintained to a safe standard under EAWR Regulation 4. Non-statutorily, BS 7671 and GN3 provided the test method and the pass criterion that identified the deficiency. The EICR is the document that communicates the finding to the duty holder, who must then remedy it to restore compliance with EAWR.

Responsibility for the Report

The inspector who signs the Electrical Installation Certificate or Electrical Installation Condition Report takes responsibility for:

• The accuracy of the inspection findings — every item checked and recorded
• The accuracy of the test results — every measurement taken and recorded correctly
• The correctness of the observation codes assigned — C1, C2, C3, or FI as appropriate
• The appropriateness of the inspection schedule used — the correct schedule for the installation type
• The validity of the recommendations made — including the recommended date for the next inspection

For an EIC (initial verification), the signatory may be the installer or a third-party inspector. For an EICR (periodic inspection), the inspector should be sufficiently independent of the installation's ongoing maintenance to provide an objective assessment, though they may be employed by the same organisation. The key requirement is competence and objectivity, not corporate separation.

Part P and Competent Person Schemes

Under Part P of the Building Regulations (applicable in England), certain electrical work in dwellings is notifiable to the local authority. A competent person self-certification scheme — operated by bodies such as NICEIC, NAPIT, or ELECSA — allows a registered installer to self-certify that their work complies with BS 7671, without needing to involve building control directly. The inspector may be asked to inspect work done under such a scheme, or may themselves be a scheme member carrying out initial verification of their own or a colleague's work.

Similar provisions apply in Wales (Part P) and Scotland (Building Standards), though the specific notifiable work categories and enforcement mechanisms differ.

Limitations of Responsibility

The inspector's responsibility is not unlimited. Key boundaries:

• The inspector is responsible for what was actually inspected and tested, not for concealed wiring that was not accessed or agreed to be excluded under limitations
• For periodic inspection using sampling, the inspector is responsible for the sampled circuits and for setting an appropriate sampling regime — not for defects in unsampled circuits that a fuller inspection might have revealed
• The inspector is not responsible for pre-existing defects outside the agreed scope of work
• The inspector is not responsible for remedial work — that is the duty holder's obligation following the report's findings
• The inspector is not responsible for the design of the installation (unless they also designed it) — verification confirms compliance with BS 7671; it does not redesign

Understanding these limitations is important both for professional self-protection and for setting client expectations. The EICR should clearly state the extent of the inspection, any limitations agreed before the work began, and the sampling regime used.

Roles and Duties Table