No — PAT testing is not a legal requirement in the UK. No regulation says you must “PAT test” anything. What the law does require is that electrical equipment is maintained so that it does not cause danger.
That distinction matters, because it changes what you actually have to do — and it usually means testing less, not more.
What the law actually says
The relevant duty sits in the Electricity at Work Regulations 1989, Regulation 4(2):
“As may be necessary to prevent danger, all systems shall be maintained so as to prevent, so far as is reasonably practicable, such danger.”
Read it carefully. It says three things — and none of them is “test annually”:
- “As may be necessary” — the amount of maintenance depends on the risk
- “maintained” — not “tested”. Inspection, repair and replacement all count
- “so far as is reasonably practicable” — proportionate to the danger, not absolute
Nowhere does it specify a method, an interval, a label, or a qualification.
So where did “annual PAT testing” come from?
Mostly from habit, from insurers asking for evidence, and from testing companies selling a simple annual product. It became a convention, then people assumed the convention was the law.
The Health and Safety Executive has pushed back on this directly. Its guidance makes clear there is no legal requirement to test every portable appliance every year, and that unnecessary testing wastes money without improving safety. The HSE’s own FAQ on the subject exists largely because the myth is so widespread.
Which other regulations apply?
| Regulation | What it requires |
|---|---|
| Electricity at Work Regulations 1989 | Maintain electrical systems to prevent danger |
| Management of H&S at Work Regulations 1999 | Carry out a suitable and sufficient risk assessment |
| Provision and Use of Work Equipment Regulations 1998 | Work equipment must be suitable, maintained and safe |
| Health and Safety at Work etc. Act 1974 | General duty of care to employees and others |
Taken together: you must assess the risk, act proportionately, and be able to show you did. PAT testing is evidence — it is not the obligation itself.
Does that mean I can ignore electrical safety?
No — and this is where the myth cuts the other way. “Not legally required” does not mean “optional”. If a worker is injured by faulty equipment and you cannot show a sensible maintenance regime, you are in serious difficulty under Regulation 4(2), regardless of whether the word “PAT” appears anywhere.
What matters is that you can demonstrate:
- You assessed which equipment poses what level of risk
- You put a proportionate regime in place — user checks, visual inspections, and testing where justified
- It actually happened, and you have records
- Faults found were acted on
What about landlords, and other special cases?
Some sectors have specific rules that go beyond the general duty. In England, for example, the Electrical Safety Standards in the Private Rented Sector (England) Regulations 2020 require landlords to have the fixed electrical installation inspected and tested at least every five years — that is a different obligation from portable appliance testing, and it is genuinely mandatory.
Other cases where written evidence is commonly expected:
- Insurance — insurers may require evidence of electrical maintenance as a policy condition. That is a contractual requirement, not a legal one, but breaching it can still cost you a claim.
- Construction sites and clients — principal contractors often set their own standards for tools brought on site.
- Licensed premises and events — local authorities may ask for evidence as a licence condition.
Always check the actual wording of what is being asked of you. “We need your PAT certificates” is often a client or insurer requirement being described as if it were law.
What should you do instead of annual blanket testing?
- Risk-assess your equipment. A hand-held grinder on a building site and a monitor on a desk are not the same problem.
- Rely most on user checks. Looking at a cable before use is free, catches most faults, and needs no instrument.
- Use formal visual inspection at intervals matched to risk — this finds the majority of remaining defects.
- Test where testing adds something — typically Class I equipment, harsh environments, or where damage isn’t visible.
- Keep records that show the regime is real.
Done properly, most low-risk offices end up testing far less than they used to, and higher-risk operations focus effort where it genuinely prevents harm.
Further reading
- HSE — Portable appliance testing FAQs
- HSE INDG236 — Maintaining portable electrical equipment
- Electricity at Work Regulations 1989
Understand the duty properly
Our PAT Testing Awareness course covers what the law actually requires, how to set risk-based intervals, and what inspection and testing involve.
Related reading: What is PAT testing? A complete guide
£9 per course. CPD accredited, 100 % online, verifiable e-certificate on completion. Pay for 2, get 3 — any 3 courses for £18.
Please note: this is a CPD awareness course and general information, not legal advice. Where your role or scheme requires a regulated qualification or licence, that must come from an approved provider — always check your employer’s or scheme’s specific requirements.