PAT testing is not mandatory at fixed intervals, but duty holders must be able to demonstrate that portable appliances are safe.

This is usually achieved through:

• Formal visual inspections

• Electrical testing where appropriate

• A documented testing regime based on risk

Failure to implement a reasonable system of inspection and testing can result in enforcement action if unsafe equipment is found or an incident occurs.

Who needs PAT testing?

PAT testing is commonly required in:

• Workplaces and offices

• Schools, colleges and universities

• Commercial and public-sector buildings

• Rented properties where appliances are provided

• Care, healthcare and hospitality environments