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Electrical Certificate of Compliance (CoC)

The South African Electrical Certificate of Compliance (CoC) is issued by a registered person on completion of electrical installation work: a new installation, an addition or alteration, or ahead of a change of ownership. It certifies that the installation complies with SANS 10142-1 (The Wiring of Premises) and the Electrical Installation Regulations, 2009. A property cannot change hands with a CoC more than two years old (regulation 7(5)). CertBox produces the supporting inspection and test record for that certificate; the CoC itself must be issued by a registered person on the prescribed Annexure 1 form, against a unique number obtained from the chief inspector.

SANS 10142-1 (The Wiring of Premises); Electrical Installation Regulations, 2009 made under the Occupational Health and Safety Act, 1993Valid: No fixed expiry - remains valid unless further electrical work is carried out on the installation

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Sample Electrical CoC certificate

Sample Electrical Certificate of Compliance (CoC) certificate created with CertBox, showing the professional PDF layout with installation address, client details, and reason for coc (new installation, addition/alteration, or change of ownership), earthing system (tn-c-s, tn-s, tt) and supply characteristics, distribution board make, type, and main switch rating

Sample Electrical CoC with fictional data. All personal details shown are fake.

What it covers

Installation address, client details, and reason for CoC (new installation, addition/alteration, or change of ownership)
Earthing system (TN-C-S, TN-S, TT) and supply characteristics
Distribution board make, type, and main switch rating
Bonding continuity, earth and neutral loop impedance at the main switch, neutral-to-earth voltage, and no-load and on-load voltage
Earth leakage unit (ELU/RCD) measured tripping current, trip and sustain test results, and test button check
Circuit schedule with cable sizes, protective devices, insulation resistance, earth continuity conductor resistance, and polarity
Whether the installation includes a generating plant (PV, battery, generator), with its test report reference
Registered person's name, registration number, and signature

Who needs a Electrical CoC?

Registered persons (electricians) carrying out installation work

Conveyancers and property sellers needing a CoC for transfer

Landlords and homeowners after electrical additions or alterations

Electrical contractors registered with the Department of Employment and Labour

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Frequently asked questions about Electrical CoC

Who can issue an Electrical Certificate of Compliance in South Africa?

Only a "registered person" (an electrician registered with the Department of Employment and Labour under the Electrical Installation Regulations, 2009) may legally issue a CoC. A builder, plumber, or unregistered electrician cannot issue one, even if they carried out the work.

Do I need a new CoC every time I sell my house?

Not every time. Regulation 7(5) of the Electrical Installation Regulations, 2009 bars a change of ownership if the CoC is more than two years old, subject to a waiver under section 10(4) of the Occupational Health and Safety Act. A CoC under two years old, with no additions or alterations since, can be handed over.

Does a CoC expire?

A CoC itself does not carry a fixed expiry date in SANS 10142-1; it remains a valid record of the installation at the time of issue unless the installation is subsequently modified, altered, or repaired, at which point a new CoC (or supplement) is required.

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