What's a Certificate of Compliance?

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What’s a CoC?
It’s a Certificate of Compliance and under New Zealand regulations electricians issue this to certify installations or part installations, including fixed wiring and fitting new power points. The CoC falls under Part 1 or 2 of AS/NZS 3000.

 
What does having a CoC mean?
It guarantees the work:
  • has been completed by a licensed electrician {registered with the Electrical Workers Registration Board (EWRB)}
  • meets NZ safety standards and codes set by law, and
  • has been tested.
Keep your CoC in a safe place as a record of the work done. You might need it for insurance claims or when selling your home.


What’s an ESC?
For routine maintenance work, such as replacing sockets and light fittings or repairing appliances, you need an Electrical Safety Certificate (ESC). All CoCs also need an ESC accompanying them.

The ESC provides a legally recognisable statement that the connected installation or part installation is safe to use following the electrical work. It falls under Regulation 74A of the Electrical (Safety) Regulations.


How do I know what’s required for my job?
Your electrician will advise which certificate(s) you need.

 

When is an electrical safety inspection needed?

Some electrical work also needs to be inspected by a licensed electrical inspector who will issue a Record of Inspection (under part 6A(2) of Electrical (Safety) Regulations 2010).

Any work on the main switchboard, the main cable, and the main earth requires inspection. We arrange this for you. Keep the inspection report in a safe place for your records.


Does this cost extra?
Because we contract in the inspector and pay them the cost is additional. We will advise you about this when quoting your job.


What about CoCs and ESCs, do they cost?
There is a standard cost to these. Ask your electrician when quoting the job. It should be itemised in the invoicing.


What electrical checks or documentation do you recommend for buying a home?
We recommend having a licensed electrician or inspector verify that all installations, outbuildings and electrical equipment are electrically safe. They’ll also identify electrical work that may need to be done.

Ask the vendor about electrical work done on the property and to see all CoCs. From this you can see if a licensed electrical worker has done the work. The CoC is also important for liability and insurance purposes, should something go wrong with the property in future.


How are electricians registered and regulated in New Zealand?
The Electrical Workers Registration Board administers the registration and licensing of electricians and “promotes safety for all New Zealanders by ensuring the competence of electrical workers.”

Electricians are required to be registered and have an annual practising licence, which is proof that your electrician is qualified to do electrical work safely. See here for more about EWRB.

See the regulations governing electrical work in New Zealand in detail at WorkSafe

Sources: EWRB, Energy Safety (Worksafe)