What an EICR Actually Is
An Electrical Installation Condition Report is a formal document produced after a periodic inspection and testing of an existing fixed electrical installation. It records the condition of the installation against the requirements of BS 7671:2018 Amendment 4:2026, the current edition of the IET Wiring Regulations, commonly called the Orange Book. From 15 October 2026, only Amendment 4 is in force. The previous A2:2022 plus A3:2024 combination remains valid alongside it during the transition period that runs until that date.
The EICR replaces what older electricians knew as the Periodic Inspection Report (PIR). The outcome is a judgement on whether the installation is satisfactory for continued use. That judgement is communicated through observation codes assigned to individual defects or departures from the standard. The overall report is only marked satisfactory if there are no C1 or C2 codes, and no FI codes that have not been resolved.
Every EICR is underpinned by two interlocking pieces of regulation: BS 7671 sets the technical standard against which the installation is judged, and the Electrical Safety Standards in the Private Rented Sector (England) Regulations 2020 impose the legal duty on landlords to obtain and act on EICRs for residential tenancies. For sole-trader electricians working in private rental properties, understanding both is non-negotiable.
The Legal Framework Governing EICRs
The Electrical Safety Standards in the Private Rented Sector (England) Regulations 2020 (SI 2020/312) require landlords of privately rented residential properties in England to ensure electrical installations are inspected and tested at intervals of no more than five years by a qualified person. The regulations came fully into force for all tenancies, including existing ones, on 1 April 2021. Local housing authorities enforce compliance, and the penalty for a landlord who fails to comply can reach £30,000 per breach.
As the electrician carrying out the inspection, your exposure sits under Part P of the Building Regulations 2010, which governs notifiable electrical work in dwellings, and under the Health and Safety at Work etc. Act 1974, which places a general duty on you to carry out your work safely and competently. If you issue a satisfactory EICR on an installation that has an uncoded C1 danger, you have potentially misrepresented the condition of that installation and created liability for yourself as well as the landlord.
BS 7671:2018 Amendment 4:2026, published 15 April 2026, is the technical benchmark. Regulation 631.1 of BS 7671 covers the purpose of periodic inspection and testing. The inspection must determine, so far as reasonably practicable, whether the installation is in a satisfactory condition for continued service. The phrase 'so far as reasonably practicable' is important because it acknowledges that some elements of an installation, particularly concealed wiring, cannot always be fully assessed without destructive investigation.
Code C1: Danger Present
A C1 code means there is an immediate danger present in the installation. The risk of injury is immediate and real. A C1 observation requires you to advise the client that the installation, or the affected part of it, must be taken out of use immediately. You should not leave site with a live C1 hazard uncorrected unless the client has physically isolated the relevant circuit or equipment and you have documented that advice in writing.
Typical C1 observations include: live parts accessible to touch with no enclosure or cover, an absence of earthing on a cooker circuit in a property with a TN-S supply, severe overheating damage to accessories or conductors that presents a live fire or shock risk, a missing consumer unit cover exposing live busbars, or a broken protective conductor that leaves exposed metalwork unearthed on a circuit where fault current could flow.
On the EICR itself, a C1 code results in an overall outcome of unsatisfactory. The report must be completed and issued, and remedial work must follow. Under the Electrical Safety Standards in the Private Rented Sector (England) Regulations 2020, Regulation 3(1)(b), a landlord receiving an unsatisfactory EICR is required to undertake remedial action within 28 days, or within the shorter period specified on the report. As the issuing electrician, you should always state a realistic timeframe in the remedial column, and for C1 items, that timeframe should typically be immediate.
- •Exposed live conductors with no enclosure
- •Absent or broken earthing on circuits with exposed conductive parts
- •Severe arcing or burning damage posing a live fire risk
- •Missing consumer unit covers exposing live busbars
- •Double-pole switching absent on a circuit that requires isolation of both poles
Code C2: Potentially Dangerous
A C2 code means the observation is potentially dangerous. The installation does not present an immediate hazard in its current state, but a foreseeable event, such as a fault, an increase in load, or deterioration over time, could result in danger. The installation is not safe for continued use without remedial action, and an EICR with a C2 code is still marked unsatisfactory overall.
This is where inexperienced or rushed inspectors sometimes make errors. The distinction between C1 and C2 is not about how severe the consequence of a fault would be, but about how immediate the risk is. A 30mA RCD protecting socket outlets in a bathroom that has failed its trip-time test is a C2, not necessarily a C1, because the shock scenario requires a concurrent fault. But it is unquestionably unsatisfactory and requires remediation before the property can be re-let.
Common C2 observations include: absence of RCD protection on circuits where it is now required under BS 7671, inadequate cross-section conductors that could overheat under fault conditions, absence of supplementary bonding where it is required, accessories that are cracked or poorly mounted such that they could become a hazard, and circuits that are overloaded relative to the protective device rating.
- •Absence of RCD protection on socket outlet circuits in a domestic installation
- •No supplementary bonding in a bathroom where it is required
- •Overloaded circuits relative to the rating of the overcurrent protective device
- •Cracked or loose accessories presenting a potential shock or fire risk
- •Incorrect polarity on a fixed appliance connection
Code C3: Improvement Recommended
A C3 code means the installation does not meet the current edition of BS 7671 but the departure does not represent a danger, immediate or potential, in the current context of use. A C3 is a recommendation that upgrading the installation would improve safety, but the report can still be marked satisfactory overall if there are no C1 or C2 codes present.
This is widely misunderstood, including by some landlords who believe a satisfactory EICR means the installation is fully compliant with current regulations. It does not. It means the installation is safe for continued use in its present condition. A property wired in the 1980s with no RCD protection on circuits that predate the relevant requirements of BS 7671 may well receive C3 codes for the absence of that protection, because the wiring was installed correctly to the standard in force at the time and does not represent a current hazard.
Typical C3 observations include: absence of surge protection devices where they are now recommended, a single-pole isolator where a double-pole would be preferable, older cable insulation types that remain serviceable but are nearing end of life, or the absence of arc fault detection devices on circuits where they are now recommended under the latest edition of BS 7671. It is worth noting that Amendment 4:2026 introduced and revised several requirements, and some observations that were previously C3 under earlier editions may now carry different weight under the updated standard.
- •Absence of surge protection devices on a newly assessed installation
- •Single-pole switching where two-pole is now recommended
- •Older cable insulation that remains functional but is approaching end of life
- •Absence of arc fault detection devices on bedroom or lounge circuits
- •Consumer unit without full Type A RCD protection on socket circuits
Code FI: Further Investigation Required
FI is not as widely discussed as C1, C2, and C3, but it is equally important in practice. An FI code means you have identified something during the inspection that requires further investigation before a definitive code can be assigned. You cannot determine whether it is dangerous or not without additional work, which may involve removing ceilings, opening floor voids, or testing under energised conditions.
An FI code results in an unsatisfactory overall outcome for the report. This is the correct and honest response when you genuinely cannot determine the condition of a concealed section of wiring, cannot complete a test because of a pre-existing fault, or cannot access part of the installation. The alternative, assigning a C3 or marking something as satisfactory when you genuinely do not know, is the more dangerous practice.
In the private rented sector, an unsatisfactory report triggered by an FI code carries the same 28-day remediation obligation as one triggered by a C2. The landlord must arrange the further investigation within that window, and the investigating electrician must then assign a definitive code and produce a follow-up report or addendum.
How Long an EICR Lasts and Who Can Issue One
For private rented residential properties in England, the Electrical Safety Standards in the Private Rented Sector (England) Regulations 2020 set a maximum interval of five years between inspections. The EICR itself may specify a shorter recommended interval, and that shorter interval must be respected. A property with ageing wiring, a history of poor maintenance, or a high-use environment such as a house in multiple occupation may warrant a three-year or even two-year interval.
The regulations require the inspection to be carried out by a 'qualified person.' This is not a term defined by reference to a specific qualification, but the guidance from MHCLG (Ministry of Housing, Communities and Local Government) is clear that the person must be competent and, in practice, competent-person scheme membership with a body such as NICEIC, NAPIT, or Elecsa is the accepted standard. As a sole trader, your scheme membership is your evidence of competency.
From 1 October 2026, the Electrotechnical Assessment Specification (EAS) 2026 requires that every employed person carrying out periodic inspection and testing must hold the relevant Level 3 award, specifically City and Guilds 2391 or the updated equivalent. No grandfather rights apply to this requirement. Sole traders operating as self-employed individuals should confirm their scheme's specific requirements, but the direction of travel is clear: demonstrable qualification is a minimum threshold, not an optional extra.
What Happens If You Get the Codes Wrong
Incorrectly coding an observation, or failing to code a genuine defect at all, creates layered liability. At the contract level, you have a duty under general law to carry out the inspection with reasonable care and skill. If you under-code a C1 as a C2, or miss a C2 entirely and mark the report satisfactory, and a subsequent incident causes injury or property damage, you are exposed to a negligence claim. Your professional indemnity insurance requires you to have maintained competence and followed the relevant standard.
At the regulatory level, a landlord who relies on your satisfactory EICR and does not undertake remediation, only for an enforcement officer to find the installation is in fact unsatisfactory, faces a civil penalty up to £30,000 under Regulation 9 of SI 2020/312. The landlord will very likely seek to recover that loss from you as the issuing electrician, on the grounds that your report was materially inaccurate. Courts in England and Wales have heard analogous cases in other inspection contexts, and the principle that a negligent inspector can be liable to third parties who rely on their report is well established.
Over-coding is also a problem, though it plays out differently. If you assign a C1 or C2 to an observation that is genuinely only a C3 or not codeable at all, you are generating unnecessary remedial work, creating potential consumer law issues, and possibly bringing your scheme into disrepute. Scheme auditors do review EICR codes, and patterns of over-coding or inconsistent coding can trigger a competence investigation.
Worked Example: A Terraced House in Manchester
Picture a 1960s mid-terrace privately rented by a single landlord to a family of four. The last EICR was done five years ago and came back satisfactory with three C3 observations. You are called in to carry out the renewal inspection in March 2026. The installation has a split-load consumer unit, a mix of PVC-insulated wiring from the 1960s and rewired circuits from the 1990s, and an electric shower on a dedicated circuit installed twelve months ago.
During testing, you find the following. The shower circuit RCD trips at 18ms to 30mA, which is within the required 40ms limit under BS 7671 for a Type AC RCD protecting a bathroom circuit, so that is satisfactory. The kitchen ring final circuit has two sockets with reversed line and neutral, confirmed by dead testing. That is a C2: potentially dangerous, because incorrect polarity under a fault condition could result in dangerous voltage on an earthed conductor. The living room circuit has no RCD protection, the consumer unit is a pre-2016 type with a plastic door, and there is no provision for AFDD. The absence of RCD on the living room circuit is a C3 under current BS 7671 guidance given the installation date and the absence of a specific risk factor, but you code it as a C3 and note the recommendation.
In the loft, you find a section of the original 1960s rubber-insulated wiring feeding a bedroom circuit. The insulation is brittle and crumbling in one location you can see, but the cable disappears into the roof void and you cannot determine the extent of the degradation. You assign an FI code. The overall report is unsatisfactory. You advise the landlord in writing on the day. The landlord has 28 days, which takes the deadline to approximately early April 2026, to arrange for the reversed polarity to be corrected and the further investigation to be completed. Once those works are done and verified, a follow-up report confirming the remediation allows the report to be closed as satisfactory. The C3 on the living room circuit remains on the report as a recommendation for the landlord's records but does not block closure.
Recording and Issuing the EICR Correctly
The EICR must be issued to the landlord within 28 days of the inspection under the Electrical Safety Standards in the Private Rented Sector (England) Regulations 2020. If the tenant made the request, or if it is a new tenancy, the timeline is different. For existing tenancies, the landlord must provide a copy to the tenant within 28 days of receiving the report. For a new tenancy, a copy must be provided before the tenant occupies the property.
The format of the EICR is standardised within BS 7671 and the associated IET guidance. The report must include the address, the name and signature of the inspector, the scheme membership number, the date of inspection, the next inspection date, the overall outcome, and a schedule of observations with codes. Any remediation notice must specify realistic timeframes. Losing or failing to issue the report exposes the landlord to enforcement action, and as the issuing electrician, your records must be retained in case of any future dispute.
Documentation discipline matters as much as technical competence. A correctly coded EICR that cannot be produced when an enforcement officer or a court requests it provides no protection to anyone. Keeping your inspection records in a structured, accessible format, including the test results schedule, the schedule of observations, and any follow-up correspondence, is not optional overhead. It is the practical evidence of your competence and the landlord's compliance.
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