PAT Testing Qualifications and Training: What You Actually Need

classroom training

For PAT testing, the key requirement is that the work is carried out by a competent person. Competence means having the knowledge and practical skill to select the correct inspections and tests, carry them out safely, and interpret results properly. PAT testing doesn’t have to be done by a qualified electrician, but it does require the right level of training and experience.


This page explains what 'competent' means in practice, when a formal qualification (such as City & Guilds 2377) is useful, and which route makes sense depending on whether you're managing PAT testing, doing it in-house, looking for a job, or planning to offer PAT testing commercially.


Quick guide: which route applies to you?

What 'competent person' means in practice

The IET Code of Practice (and HSE guidance) recognises that 'competence' isn’t one fixed standard. The level required depends on what you’re doing, from basic checks on low-risk items, through to inspection and testing that involves interpretation of readings, repair work, or safe isolation of fixed equipment.

Two common competency levels (HSE guidance)

HSE guidance (HSG107) describes two practical levels often used for in-service inspection and testing. The key difference is the complexity of the work and whether the person needs to interpret measured readings.

  • Level 1 (basic / non-skilled): trained mainly to carry out a visual inspection and apply clear pass/fail criteria. It does not involve dismantling equipment or opening rewirable plugs as part of the inspection. In some settings, trained staff may also use a simple go/no-go (pass/fail) checker on suitable equipment, following a defined procedure, without interpreting numerical readings.
  • Level 2 (skilled operative): has appropriate electrical knowledge and carries out formal inspection and electrical testing using instruments that provide measured values requiring interpretation. This level includes identifying equipment construction, selecting appropriate tests and limits, recognising when a test is unsuitable, and understanding the limitations of both the test instrument and the equipment under test. Level 2 competence also covers tasks such as opening rewirable plugs where required and dealing with findings appropriately.

What training should cover

Good training should give you practical competence in the areas that most affect safety and test validity:

  • Equipment classification: identifying Class I, Class II, Class II FE and Class III so the correct tests and limits are applied.
  • Test selection and intervals: understanding which tests are appropriate (and when they are not) and how inspection/test frequency should be set by risk assessment.
  • Using instruments correctly: knowing how your tester works, what it can and can’t do, and how to avoid misleading results.
  • Avoiding damage: recognising when certain tests are inappropriate (for example, high-current continuity tests on sensitive IT equipment) and choosing safer methods where required.
  • Recognising defects: spotting electrical, mechanical and thermal damage to plugs, flexes, strain relief, and enclosures — including early signs of overheating.
  • Identifying counterfeit or substandard equipment: how to spot warning signs that an item may not meet basic UK safety requirements. We have some examples of counterfeit and dangerous electrical equipment here.

Fixed and permanently connected equipment needs higher competence

Where equipment is connected to the fixed installation (for example via a fused spur), inspection and testing is still within scope, but it usually requires safe isolation to be carried out first. This is a higher-risk task and should only be done by someone competent in safe isolation procedures and the precautions needed to maintain a safe system of work. (See our guide to fixed equipment isolation for PAT testing.)

Competence isn’t just for the tester

A good maintenance system involves several roles, each needing the right level of awareness:

  • Users: should be trained to spot obvious defects (damage, overheating, loose plugs/leads) and remove suspect equipment from service. See our guide on user checks.
  • Duty holders / managers: need enough understanding to set scope, agree frequencies, ensure defects are acted on, and keep appropriate records.
  • People carrying out repairs: anyone replacing a plug, fuse, or flex must be competent to do it safely, and understand that further inspection/testing may be required before the item returns to service.

Do you need a qualification?

There is no legal requirement to hold a specific PAT qualification. However, qualifications can be useful because they provide evidence of training and competence, and many employers or clients expect them.


As a general rule:

  • In-house testing (schools, offices, facilities teams, landlords, charities): a practical one-day competence-focused course is often the most suitable route, provided you only test within your organisation and you understand your limitations. See doing PAT testing in-house.
  • Commercial PAT testing / career route: employers often look for City & Guilds 2377 (or equivalent), particularly for full-time PAT roles and contractor work. See how to become a PAT tester.

City & Guilds 2377: when does it matter?

City & Guilds 2377-77 is the current widely-recognised qualification for in-service inspection and testing of electrical equipment. It is often requested by employers, larger clients, and some insurance schemes for businesses offering PAT testing as a service.


If you’re preparing for the exam, these resources may help:

Online PAT courses: where they fit

Some online PAT courses can be useful, but PAT testing is ultimately a practical skill. Visual inspection technique, correct test selection, and interpreting results are difficult to learn properly without supervised hands-on practice. We explain this in more detail here: Online PAT testing courses: are they enough to become competent?

Doing PAT testing in-house: why it works well

For many organisations, in-house PAT testing is the simplest way to stay in control: you can test equipment when it suits you, reduce disruption, avoid missed items, and set sensible frequencies based on your own environment and equipment. The key is making sure the person doing the work is trained, uses the right equipment, and follows a consistent record and defect process.


If you’re weighing up whether to outsource or bring it in-house, these guides will help:

Starting a PAT testing business: competence still comes first

PAT testing has relatively low barriers to entry, which is both the opportunity and the risk. If you’re offering PAT testing as a service, you need a professional approach to competence, records, equipment selection, calibration, insurance, and customer expectations.


If that’s your goal, start here: Starting a PAT testing business.

Landlords and charity shops: extra care with supplied equipment

If you supply electrical appliances as part of a tenancy or resale (including charity shops), you’re taking on additional responsibility for safety. Inspection and testing is widely used as a practical way to demonstrate due diligence, but it needs to be done properly, with clear records and an effective fail/removal process.


Training and next steps

If you want to carry out PAT testing competently (whether in-house or professionally), hands-on training is the quickest way to build confidence with inspection technique, test selection, limits, and record keeping. Our PAT testing courses cover the practical skills needed to carry out inspection and testing safely and correctly.