Download NZ EWRB Electrical Certificate of Compliance

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All mandatory fields included by default

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The Problem With Paper & PDF CoCs/ESCs

Many electricians still rely on paper pads or basic PDF templates to complete electrical CoCs. While familiar, this approach creates unnecessary admin and risk.

Common issues include:

Time wasted printing, scanning, and emailing
Lost, damaged, or incomplete certificates
No central storage, making it difficult to find certificates years later
Hard-to-read handwriting or scanned copies
Missing required fields or signatures

When do you need an Electrical Certificate of Compliance?

Electricians in New Zealand must issue an electrical certificate of compliance for most prescribed electrical work that isn’t considered low-risk. If you’re unsure whether a CoC is needed, it’s safer to assume it is and check against current regulations.

Common Situations Where an electrical CoC Is Required

You will typically need an electrical CoC when you:

Install, extend, or alter fixed electrical wiring
Install or upgrade mains or submains
Install new switchboards or significantly modify existing ones
Add new circuits, outlets, or lighting circuits
Carry out wiring work in a new build or major renovation
Install systems such as EV chargers, solar systems, or other fixed electrical equipment (where classified as prescribed electrical work)

When a CoC Isn’t Usually Required

Some low-risk prescribed electrical work does not require a CoC. Examples can include:

Replacing a light fitting with a like-for-like alternative
Replacing a switch or socket outlet without altering the wiring
Repairing appliances

In these cases, an Electrical Safety Certificate (ESC) may still be required to confirm the installation is safe to use.

What Must Be Included in EWRBs Electrical Certificate of Compliance?

To be valid in New Zealand, an electrical certificate of compliance must contain specific information about the electrician, the work performed, and the standards it complies with.

1. Electrical Worker Details

A compliant electrical CoC must clearly identify the person responsible for the work, including:

Name of the electrical worker
Registration class and licence number
Business or contact details
Signature (physical or digital)

2. Details of the Work

The CoC must describe the work that has been carried out, including:

Address and location of the work
Whether the work is new, altered, or added
Whether the work is low-voltage, general or high risk work
Description of the prescribed electrical work
Date(s) the work was carried out and completed
Whether any part of the work is connected or left disconnected

3. Compliance Statement

The certificate must confirm that the work:

Complies with AS/NZS 3000 (Wiring Rules) and any other relevant standards
Meets the requirements of the Electricity (Safety) Regulations 2010
Has been tested and verified in accordance with applicable rules

4. Supporting Documents

In some cases, additional documentation should accompany the CoC, such as:

Test results and measurements
Diagrams or as-built drawings
Manufacturer’s instructions or declarations

Why Electrical CoCs Are So Important

An electrical certificate of compliance isn’t just paperwork. It’s a critical part of electrical safety and legal protection in New Zealand.

Legal requirement – CoCs are mandated for qualifying electrical work and may be requested by the EWRB or inspectors.
Proof of compliance – They document that the work meets the relevant standards and regulations.
Protection for homeowners and businesses – If an issue arises later, a CoC helps show that the installation was compliant when completed.
Insurance and property sales – Insurers, property managers, and buyers often request CoCs as part of due diligence.

Frequently Asked Questions About Electrical CoCs in NZ

Do homeowners need to keep their electrical certificate of compliance?

Yes. It’s best practice to keep your electrical certificate of compliance for as long as the installation remains in place, and at least 7 years. It provides proof that the work was carried out in compliance with NZ regulations at the time.

Can a trainee or apprentice issue an electrical CoC?

No. Only a registered and licensed electrical worker can issue and sign an electrical certificate of compliance. Trainees may help complete the form, but the responsibility and signature sit with the licensed person.

Are digital electrical CoCs valid in New Zealand?

Yes. Digital CoCs, including digital signatures, are acceptable as long as they contain all required information and are stored in a way that they can be produced if requested by regulators or inspectors.

Do all electrical jobs need a CoC?

No. Low-risk prescribed electrical work does not usually require a CoC, but it may still require an Electrical Safety Certificate (ESC). Medium-risk and high-risk prescribed work generally requires both a CoC and an ESC.

How long must electricians keep copies of electrical CoCs?

Electricians must keep a copy of each electrical certificate of compliance for a minimum of 7 years.

Download NZs EWRB Electrical Certificate of Compliance

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