PAT Testing Explained: Is It a Legal Requirement and How Often?

PAT stands for portable appliance testing: safety checks combining visual inspection with electrical tests appropriate to the equipment and its risks. Workplaces have no blanket annual PAT rule; covered social-landlord equipment has a separate statutory checking regime in England.

PAT means portable appliance testing: equipment safety checks whose workplace frequency is risk-based, while covered social-landlord equipment in England must be checked at least every five years or sooner if its ISIT record requires.

EICR Certificates London helps landlords and businesses distinguish appliance checks from fixed-installation inspections, so the work arranged matches the equipment and responsibilities involved.

Is PAT Testing a Legal Requirement for Businesses?

Employers must maintain electrical equipment to prevent danger, but workplace law does not prescribe annual PAT testing for every appliance. The Electricity at Work Regulations 1989 require maintenance where necessary to prevent danger, so far as reasonably practicable. The duty holder needs arrangements suited to the equipment and its use.

HSE’s Portable appliance testing FAQs explain that user checks, formal visual inspection and combined inspection and testing can contribute to maintenance. An insurer, client or premises operator may impose additional requirements. Read the actual policy, agreement or site rules before deciding what evidence is needed.

• Legal duty: maintain equipment so that it does not present danger.
• Maintenance method: select proportionate checks and tests.
• Contractual condition: meet any applicable, separately specified requirements; these are not universal legislation.

What Are the PAT Requirements for Landlords in England?

The equipment-checking requirements depend on whether the landlord operates in the private or social rented sector. See the wider electrical safety duties for private and social landlords. For covered tenancies, distinguish landlord-supplied appliances from tenants’ belongings. Appliance assessments and installation inspections have separate scopes and records.

Private Landlords and HMO Licence Conditions

The national private-rented-sector EICR duty does not create a blanket annual PAT requirement for supplied appliances. Supplied equipment must still be safe, with inspection and maintenance reflecting its condition and use. GOV.UK rented-sector electrical-safety guidance distinguishes these responsibilities from the installation inspection requirement.

• Supplied inventory: identify the appliances provided with the tenancy.
• Maintenance arrangements: establish how defects are reported, assessed and addressed.
• Licence conditions: HMO landlords should check the property’s actual licence and applicable council guidance. A property-specific condition is distinct from a national annual rule.

Social Landlords: Equipment Checks and the ISIT Record

For covered social tenancies in England, relevant landlord-supplied equipment must be checked by a qualified person at least every five years, or earlier if its latest ISIT record requires it. The amended 2020 Regulations establish this equipment-checking duty. The qualified person determines whether visual inspection, electrical testing or both are necessary for the item concerned.

The in-service inspection and testing record, or ISIT record, documents the equipment assessment and identifies when another check is required. This is not a universal five-year PAT certificate requiring identical instrument tests across every appliance. Landlords need to use the recorded findings and next-check date when organising subsequent work.

What Is the Difference Between PAT Testing and an EICR?

PAT assesses electrical equipment; an EICR assesses the fixed electrical installation within its recorded scope.

Comparison	PAT	EICR
Object assessed	Equipment and associated supply leads.	Fixed wiring, distribution equipment and accessories.
Typical examples	A kettle and its lead.	A socket circuit and consumer unit.
Resulting document	Item-specific PAT inspection and test record.	Electrical Installation Condition Report, including findings and recorded limitations.

Read more about what an EICR covers and what it does not. Neither assessment replaces the other.

Hardwired equipment needs an expressly agreed scope: establish who will inspect the appliance, its connection and the supplying circuit. Do not assume permanent connection means the entire appliance has been assessed during an EICR, or that it must always be excluded. The IET Code of Practice supports equipment management beyond readily portable items.

Which Appliances and Leads Need to Be Considered?

Start with the equipment inventory: appliances, mains chargers, detachable leads and extension leads all need their maintenance needs assessed. PAT remains the familiar term; the IET uses “in-service inspection and testing of electrical equipment” to describe the broader scope.

Equipment group	Scope checklist
Office equipment	Identify computers, monitors and printers, including their supply leads.
Kitchen and cleaning equipment	Include kettles and vacuum cleaners; consider handling and operating conditions.
Supplied rental appliances	Record which items the landlord provides and maintains.
Chargers and leads	Account for mains chargers, extension leads and detachable IEC leads.
Hardwired equipment	Agree appliance coverage and responsibility for the fixed connection.

New equipment: HSE generally recommends a visual check rather than automatic formal testing of a new item. However, the social-landlord regime covers relevant supplied equipment regardless of age, as GOV.UK equipment guidance explains. An inventory entry identifies something to assess; it does not mean every available instrument test is necessary.

What Does PAT Testing Involve?

PAT involves identifying the equipment, inspecting its condition and carrying out the electrical tests appropriate to its construction and risks. Routine user checks support maintenance between formal inspections. Combined inspection and testing adds applicable instrument checks, with findings recorded against the individual item.

Visual Inspection: Appliance, Plug, Fuse and Flex

A formal visual inspection checks for damage, unsuitable components and signs of misuse before electrical testing is considered.

• Casing condition and accessible damage.
• Flex insulation, wear and deterioration.
• Plug condition and suitability, including suspect substandard components.
• Cord grip and cable-entry security.
• Fuse suitability, assessed during competent inspection of a rewirable plug where applicable.
• Overheating evidence, such as discolouration or melting.

HSE guidance and the IET Code of Practice treat inspection and instrument testing as complementary: a tester reading cannot reveal every physical defect, and external user checks do not authorise repairs.

Electrical Tests Depend on the Equipment Class

Class I and Class II equipment use different protective measures, so the applicable electrical tests differ.

Equipment class	Protective construction
Class I	Includes protective earthing; the integrity of that protective path matters.
Class II	Uses double or reinforced insulation rather than relying on a protective earth.

• Earth continuity: assesses the protective-earth connection where required.
• Insulation resistance: assesses insulation separating electrical parts.
• Leakage or touch-current testing: assesses relevant unwanted current using a suitable method.

Under the IET Code of Practice, method selection must account for sensitive electronics and manufacturer instructions. The inspector establishes the equipment class rather than relying on appearance. A functional check showing that an appliance operates does not, by itself, establish electrical safety.

How Often Should PAT Testing Be Carried Out?

Workplace PAT intervals depend on risk; covered social-landlord equipment must be checked at least every five years, or sooner when its ISIT record requires.

Workplace frequency aid: these examples come from HSE’s suggested initial intervals in Work using electrically powered equipment. They are starting guidance for suitable workplace conditions, not statutory deadlines or recommendations for a particular property.

HSE workplace example	User checks	Formal visual inspection	Combined inspection and testing
Office IT equipment	Not normally necessary in the HSE example; report damage when noticed.	Every 1–2 years.	Unnecessary for double-insulated equipment; otherwise up to five years.
Earthed Class I equipment, such as kettles	Yes; include checks by users in the maintenance arrangements.	Every 6–12 months.	Every 1–2 years.

The duty holder should review intervals against equipment type, environment, handling, previous faults and manufacturer guidance. Inspection history helps determine whether arrangements remain appropriate. Equipment exposed to rough treatment needs a different assessment from an item kept undisturbed in a low-risk office. New damage requires action regardless of the scheduled review date.

For an equipment-only visit, discuss PAT testing in London.

If your tenancy needs installation and supplied-appliance assessments together, consider the landlord electrical safety package.

What Do PAT Records, Certificates and Labels Tell You?

The useful evidence is an item-level inspection and test record; a label alone does not explain what was checked or establish future safety.

Document or marker	What it tells you
Appliance register	Identifies the equipment being managed.
Inspection and test record	Documents the assessment and results for each item.
PAT certificate	Commonly summarises a visit; check the supporting item records.
Equipment label	Provides a quick reference to the recorded status.

Useful record fields include:

• Item identifier and inspection date.
• Findings and applicable test results.
• Outcome and required action.
• Next review or check date.

Agree record provision with the person conducting the checks and request the completed documentation. IET model forms illustrate useful recording fields.

HSE does not impose a blanket workplace requirement for PAT labels or records, although records support maintenance management. A workplace certificate has no universal statutory expiry. Condition and the applicable regime govern action. Social-landlord ISIT records are mandatory under regulations 3C–3D and should be retained with the tenancy’s electrical-safety documentation.

Arrange PAT Testing for Your London Property or Workplace

EICR Certificates London provides PAT testing for London properties and workplaces, with the work quoted to suit the equipment and access required.

Qualified, insured electricians. Open 8am to 10pm, seven days a week.

Discuss Your PAT Testing: provide the address, premises type, approximate equipment count, existing records and access constraints. Explain any shutdown restrictions so the proposed visit can be scoped around the equipment involved.

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PAT Testing Questions About Competence, Failures and Booking