An EICR (Electrical Installation Condition Report) is a formal inspection and test of a property's fixed electrical installation. It assesses the condition of the wiring, consumer unit, protective devices, earthing and bonding, sockets, switches, and all fixed electrical equipment.
The EICR is carried out under BS 7671:2018+A4:2026 Chapter 65 (periodic inspection and testing), using the model report form in Appendix 6. An Electrical Installation Condition Report is the correct document for periodic inspection of existing installations — not an Electrical Installation Certificate, which is issued for new work only.
The inspector carries out a detailed visual inspection followed by a programme of testing (insulation resistance, earth fault loop impedance, RCD operation times, continuity of protective conductors). The results are recorded on Schedules of Circuit Details and Test Results, which form part of the report. Each observation is classified using a code system (C1, C2, C3, FI) that indicates the severity and urgency of any defects found.
The overall condition of the installation is assessed as either Satisfactory or Unsatisfactory. An Unsatisfactory result means the installation has one or more C1 (danger present) or C2 (potentially dangerous) observations that require remedial work.
A4:2026 Changes Relevant to Bristol EICRs
BS 7671:2018+A4:2026 introduced two requirements that directly affect how domestic EICRs are assessed in Bristol:
- Reg 421.1.7 — Arc Fault Detection Devices (AFDDs): A4:2026 makes AFDDs a requirement for single-phase AC final circuits supplying socket-outlets rated up to 32 A in Houses in Multiple Occupation, purpose-built student accommodation, care homes, and higher-risk residential buildings. For all other premises the regulation recommends AFDDs on the same circuits. Given Bristol's large HMO and student-let stock, this is a material change — inspectors record AFDD presence on the EICR, and the EICR confirms AFDDs are operational (Regs 421.1.7, 532.6 and 651.2(e)).
- Reg 411.3.4 — RCD protection on domestic lighting circuits: Within domestic premises, additional protection by an RCD with a rated residual operating current not exceeding 30 mA shall be provided for AC final circuits supplying luminaires. This is a mandatory requirement. Domestic lighting circuits without RCD protection (≤30 mA) are now non-compliant and should attract a C2 observation on an EICR of an existing installation.