Electricity at Work Regulations 1989: What Every Electrician Must Know
The Electricity at Work Regulations 1989 are the primary UK legislation governing electrical safety in the workplace. They impose legal duties on employers, employees, and self-employed persons. This guide explains the key regulations — Regulation 4, 12, 14, and 16 — and what they mean for your daily work.
What are the Electricity at Work Regulations 1989?
The Electricity at Work Regulations 1989 (EAWR) are UK law made under the Health and Safety at Work Act 1974 and enforced by the HSE. They impose legal duties on employers, the self-employed and employees to prevent danger from electrical systems at work. The four regulations electricians rely on most are Reg 4 (safe systems), Reg 12 (working dead), Reg 14 (live working) and Reg 16 (competence).
Breach is a criminal offence. Following BS 7671 is the accepted way of showing an installation meets Reg 4, but the EAWR are broader and cover every electrical work activity, not just installation.
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Key Takeaways
1The Electricity at Work Regulations 1989 (EAWR) are the primary UK legislation governing electrical safety in the workplace, enforced by the Health and Safety Executive (HSE).
2Regulation 4 requires all electrical systems to be constructed, maintained, and used so as to prevent danger — this underpins the requirement for periodic inspection and testing (EICR).
3Regulation 12 requires adequate precautions when working on equipment made dead — the legal basis for safe isolation procedures.
4Regulation 14 prohibits working on or near live conductors unless it is unreasonable for it to be dead, it is reasonable to work live, and suitable precautions are taken.
5Regulation 16 requires that persons carrying out electrical work must be competent — or supervised by a competent person — to prevent danger and injury.
6BS 7671:2018+A4:2026 (A4) tightened the construction requirements that underpin Regulation 4: AFDDs are mandatory for socket-outlet final circuits rated up to 32 A in HRRBs, HMOs, purpose-built student accommodation and care homes (recommended elsewhere) under Reg 421.1.7, and 30 mA RCD protection is required for AC final circuits supplying luminaires in domestic premises under Reg 411.3.4.
01 · Regulations
The Electricity at Work Regulations 1989: What They Are
The Electricity at Work Regulations 1989 (EAWR) are a set of statutory regulations made under the Health and Safety at Work Act 1974. They are the primary legislation governing electrical safety in the workplace in England, Scotland, and Wales. The regulations are enforced by the Health and Safety Executive (HSE) and local authority environmental health departments.
The EAWR contain 33 regulations covering all aspects of electrical safety at work, from the construction and maintenance of electrical systems to the conduct of work activities on or near electrical equipment. They apply to all workplaces, all employers, all employees, and all self-employed persons.
For electricians, the EAWR are the legal foundation of everything you do. When you follow safe isolation procedures, you are complying with Regulation 12. When you carry out an EICR, you are helping the employer or landlord comply with Regulation 4. When you refuse to work live without justification, you are complying with Regulation 14. Understanding these regulations is not optional — it is a legal duty.
The HSE publishes Memorandum of Guidance on the Electricity at Work Regulations 1989 (HSR25), which provides detailed interpretation and practical guidance on each regulation. This memorandum is essential reading for any electrician who wants to understand the legal basis of their work.
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02 · Regulations
Who the Regulations Apply To
The EAWR have broad application. Regulation 3 defines the duty holders:
Employers — must ensure that their employees are not exposed to danger from electrical systems or equipment. This includes providing safe systems of work, maintaining electrical installations, and ensuring employees are competent or supervised.
Self-employed persons — have the same duties as employers in relation to their own safety and the safety of others who may be affected by their work. A self-employed electrician is personally responsible for complying with the EAWR.
Employees — must cooperate with their employer to comply with the regulations. An employee who deliberately breaches safe working practices (for example, bypassing a lock-off to re-energise a circuit) can be personally prosecuted.
Duty holders for premises — building owners, landlords, and managing agents have a duty under Regulation 4 to ensure that the fixed electrical installation in their premises is maintained in a safe condition.
The regulations apply to all workplaces — offices, factories, shops, construction sites, schools, hospitals, and any other premises where people are at work. They also apply to work carried out in domestic properties by professional tradespeople (because the tradesperson is "at work"). The regulations apply regardless of the voltage — from extra-low voltage control circuits to high-voltage distribution systems.
03 · Regulations
Regulation 4: All Systems Must Prevent Danger
Regulation 4 is the cornerstone of the EAWR. It states:
"All systems shall at all times be of such construction as to prevent, so far as is reasonably practicable, danger."
And: "As may be necessary to prevent danger, all systems shall be maintained so as to prevent, so far as is reasonably practicable, such danger."
This regulation has two parts. The first requires that electrical systems must be properly constructed — designed and installed to a standard that prevents danger. Compliance with BS 7671 is the accepted way of demonstrating this.
The second part requires ongoing maintenance to prevent danger. This is the legal basis for periodic inspection and testing — the EICR. An installation that was safe when first installed can deteriorate over time due to wear, damage, environmental factors, and modifications. Periodic inspection identifies defects before they cause danger.
Construction — the installation must be designed and installed in accordance with a recognised standard (BS 7671). Cables must be correctly sized, protective devices must be correctly rated, earthing and bonding must be adequate, and RCDs must be installed where required.
Maintenance — the installation must be periodically inspected and tested by a competent person. Defects must be rectified promptly, and records of inspections and tests must be kept. BS 7671 Regulation 652.1 requires that the frequency of periodic inspection and testing be determined having regard to the type of installation, its use and operation, the frequency and quality of maintenance, and the external influences to which it may be subjected — along with the results and recommendations of previous reports. The inspector's assessed interval always takes precedence over the indicative defaults below.
Use — the installation must be used safely. Overloading circuits, using damaged equipment, and bypassing protective devices are all breaches of Regulation 4.
Indicative maximum periodic inspection intervals (assessed under Reg 652.1)
Installation type
Typical interval
Domestic / owner-occupied dwelling
Up to 10 years (or change of occupancy)
Rented domestic accommodation
5 years (or change of occupancy)
Commercial premises
5 years (or change of occupancy)
Industrial premises
3 years
Indicative guidance only — the inspector sets the actual interval under Reg 652.1. See the EICR for landlords guide for the rented-sector statutory five-year requirement.
A4:2026 Update — New construction requirements
BS 7671:2018+A4:2026 introduced two new requirements that directly affect Regulation 4 compliance for new installations and EICRs:
Reg 421.1.7 — Arc Fault Detection Devices (AFDDs): AFDDs conforming to BS EN 62606 are now mandatory for single-phase AC final circuits supplying socket-outlets rated not exceeding 32 A in the four building types in the table below. For all other premises AFDDs are recommended for the same circuits. Where used, an AFDD must be placed at the origin of the circuit it protects.
Reg 411.3.4 — RCD protection for luminaire circuits: Within domestic (household) premises, additional protection by an RCD with a rated residual operating current not exceeding 30 mA must now be provided for AC final circuits supplying luminaires. An RCBO rated at or below 30 mA satisfies this requirement.
Premises type (Reg 421.1.7)
AFDD on socket circuits ≤32 A
High rise residential buildings (HRRBs) — over 18 m or more than six storeys
Mandatory
Houses in Multiple Occupation (HMOs)
Mandatory
Purpose-built student accommodation
Mandatory
Care homes
Mandatory
All other premises (including standard dwellings)
Recommended
Source: BS 7671:2018+A4:2026 Regs 421.1.7 and 411.3.4
The phrase "so far as is reasonably practicable" means the duty is not absolute — but the burden is on the duty holder to show that it was not reasonably practicable to prevent the danger. In practice, this is a high bar. If a defect could have been identified by a periodic inspection that was not carried out, the duty holder will struggle to argue that they took all reasonably practicable steps.
For landlords and building owners, Regulation 4 is further reinforced by statutory obligations requiring that electrical installations in rented premises are maintained in a safe condition. Periodic inspection and testing is the recognised means of satisfying that duty — as GN3 Chapter 3 (Reg 3.10) states, it is the established method for ensuring that electrical installations remain safe during use and under the duty holder's responsibility. See the EICR for landlords guide for the specific statutory requirements that apply to the private rented sector.
04 · Regulations
Regulation 12: Working on Equipment Made Dead
Regulation 12 requires that adequate precautions are taken to prevent electrical equipment from becoming live while work is being carried out on it. This is the legal foundation of the safe isolation procedure that every electrician must follow.
Isolate — switch off and disconnect the circuit or equipment from all sources of electrical energy. This may require switching off the MCB, RCBO, or main switch, and confirming that no other source of supply can energise the circuit (for example, a generator or solar PV inverter).
Secure the isolation — lock off the isolating device with a personal padlock (lock-off kit) so that nobody else can re-energise the circuit. Apply a warning notice: "Danger — Do not switch on." Only the person who applied the lock should remove it.
Prove dead — use an approved voltage indicator (complying with GS38 requirements) to test between all conductors (line-line, line-neutral, line-earth, neutral-earth) to confirm the circuit is dead. Test the voltage indicator on a known live source before and after proving dead to confirm the tester is working correctly. This is the "test — prove dead — test" procedure.
The safe isolation procedure is non-negotiable. Every electrical fatality investigation by the HSE examines whether safe isolation was followed. Electricians who skip steps — not locking off, not proving dead, using a non-compliant voltage tester — are personally liable if an accident occurs. The procedure takes only a few minutes but it could save your life.
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Regulation 14 is one of the most important — and most frequently misunderstood — regulations. It states that no person shall work on or near a live conductor (other than one suitably covered with insulating material) unless:
Condition 1: It is unreasonable in all the circumstances for the conductor to be dead. For example, if de-energising the circuit would cause a greater danger than working live (such as shutting down life-support equipment in a hospital).
Condition 2: It is reasonable in all the circumstances for the work to be carried out on or near the live conductor. The work must be of a nature that justifies live working — typically fault finding, testing, or commissioning that requires the circuit to be energised.
Condition 3: Suitable precautions (including, where necessary, the provision of suitable protective equipment) have been taken to prevent injury. This includes risk assessments, GS38-compliant test equipment, insulated tools, barriers, PPE, and a competent second person present.
All three conditions must be satisfied simultaneously. The crucial point is that "saving time" or "convenience" is never a valid justification for live working. The HSE's guidance is clear: if the circuit can be made dead, it must be made dead. Live working is a last resort, not a shortcut.
In practice, the most common justified live working for electricians is fault finding and testing on control circuits where the fault can only be identified with the circuit energised. Even then, the electrician must document the justification in a risk assessment, use GS38-compliant test equipment, wear appropriate PPE, use insulated tools, and have a second competent person present.
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Regulation 16 states that no person shall be engaged in any work activity where technical knowledge or experience is necessary to prevent danger or, where appropriate, injury, unless they possess such technical knowledge or experience, or are under such degree of supervision as may be appropriate having regard to the nature of the work.
This regulation establishes the legal principle of competence. It does not prescribe specific qualifications — instead, it focuses on whether the person has the knowledge and experience to carry out the work safely. However, in practice, competence for electrical installation work is demonstrated by:
Qualifications — C&G 2382 (18th Edition IET Wiring Regulations), C&G 2391 (Inspection and Testing), NVQ Level 3 in Electrical Installation, and relevant specialist qualifications (solar PV, EV charging, fire alarm).
Experience — practical experience of carrying out the type of work in question. A newly qualified electrician with limited experience may be competent for routine domestic work but not for complex industrial installations.
Registration — registration with a competent person scheme (NICEIC, NAPIT, ELECSA) demonstrates that the electrician's competence has been independently assessed and is regularly reviewed.
CPD — continuing professional development ensures that competence is maintained as standards, technology, and regulations evolve. Elec-Mate provides 46+ training courses covering CPD requirements for electricians.
For apprentices, Regulation 16 allows them to carry out electrical work under supervision. The level of supervision must be proportionate to the risk of the work and the experience of the apprentice. High-risk work (live working, work in hazardous areas) requires direct, close supervision. Lower-risk work (chasing walls, pulling cables) may require only general supervision with periodic checks.
07 · Regulations
Enforcement and Penalties
The EAWR are enforced by the Health and Safety Executive (HSE) and, in some premises, by local authority environmental health officers. Enforcement action can range from informal advice to criminal prosecution:
Improvement notices — require the duty holder to remedy a contravention within a specified period. For example, an employer who has not arranged periodic inspection and testing of the electrical installation may be served with an improvement notice requiring them to do so.
Prohibition notices — require the duty holder to immediately stop a dangerous activity. For example, if an HSE inspector finds an electrician working live without justification, they can issue a prohibition notice requiring the work to stop immediately.
Prosecution — serious breaches can result in criminal prosecution. Following the Legal Aid, Sentencing and Punishment of Offenders Act 2012 (effective 2015), fines are unlimited in both the magistrates' court and the Crown Court. The magistrates' court can also impose imprisonment of up to 12 months; the Crown Court up to 2 years. Both employers and individual employees can be prosecuted.
Corporate manslaughter — where a gross breach of health and safety duties results in a death, the organisation can be charged with corporate manslaughter under the Corporate Manslaughter and Corporate Homicide Act 2007. Individuals can be charged with gross negligence manslaughter.
Enforcement route
Maximum fine
Maximum imprisonment
Magistrates' court (summary)
Unlimited
Up to 12 months
Crown Court (on indictment)
Unlimited
Up to 2 years
Fines became unlimited following the Legal Aid, Sentencing and Punishment of Offenders Act 2012 (in force 2015). Both the organisation and named individuals can be prosecuted.
The HSE publishes annual statistics on electrical accidents and fatalities. Electrical contact is consistently one of the leading causes of workplace fatalities in the construction sector. Every fatality triggers an HSE investigation, and prosecution follows in the majority of cases where a breach of the EAWR contributed to the death.
08 · Regulations
How Elec-Mate Supports EAWR Compliance
Complying with the Electricity at Work Regulations requires a combination of competence, proper procedures, and documentation. Elec-Mate provides tools that support all three:
AI Health and Safety Agent
Describe the job and the AI generates a risk assessment and method statement (RAMS) covering EAWR requirements, safe isolation procedures, live working justification (where applicable), and PPE requirements. Professional documents in minutes, not hours.
EICR Certificates — Regulation 4 Compliance
Complete EICR certificates on your phone with the AI board scanner, voice test entry, and defect code AI. Help employers and landlords comply with Regulation 4 by providing thorough periodic inspection reports with professional PDF output.
EAWR Training Course
Study the EAWR with structured training modules covering every regulation, safe isolation procedures, live working justification, and competence requirements. Flashcards, mock exams, and EPA/AM2 simulators for apprentices preparing for end-point assessment.
Business Tools for Compliance Records
Quoting, invoicing, expenses, and cash flow management — plus certificate storage and delivery. Keep all your compliance documentation in one place. Send certificates, RAMS, and reports to clients instantly from the app.
Compliance made simple
Elec-Mate's AI agents generate risk assessments and method statements. Digital certificates document Regulation 4 compliance.
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