How long an electrical CoC is valid in South Africa has a short answer that surprises most owners: the Electrical Installation Regulations set no expiry date at all. A certificate does not lapse with the passing of time. What the Regulations do set is a two-year limit at one specific moment, the transfer of the property, and a separate duty that bites whenever anybody alters the installation. Those two rules, not the age of the paper on its own, are what decide whether the certificate in your file is worth anything.
What the certificate actually says
A CoC is not a warranty that the power works. It is a signed statement that on a particular day, a registered person inspected and tested a defined installation and found it compliant with the standard.
The standard is SANS 10142-1, and the mechanics are tighter than most owners expect. ECA(SA)'s National Technical Advisor Grant Seeman, writing on the standard test report, sets out four inspection questions and 15 tests. Clause 8.5.2 requires each inspection question to be answered "Yes". A "No" means the certificate cannot be issued.
The second of those questions is that components have been correctly selected and installed. That covers whether a device is rated for the voltage and current of its circuit, and whether it is suitable for a.c. or d.c. It also covers whether the enclosure suits moisture, dust, heat or direct sunlight, and whether the equipment can still be reached for testing and maintenance.
Where the answer is unacceptable, Seeman points to regulation 9(3), which requires the registered person to refuse to issue the certificate until the fault or defect is rectified. That refusal is the part of the system that has teeth, and it is why a CoC produced in a hurry three days before transfer is worth looking at carefully.
When does an electrical CoC stop being good enough?
It stops carrying a sale once it is older than two years. And it never covers an addition or alteration made after it was issued; that work needs a certificate of its own.
The Electrical Installation Regulations, 2009 were published as Government Notice R.242 in Government Gazette 31975 on 6 March 2009 under the Occupational Health and Safety Act 85 of 1993. They put the duty on the user or lessor. Regulation 7(1) requires every user or lessor of an electrical installation to hold a valid certificate of compliance in the form of Annexure 1. Nothing in the Regulations makes that certificate expire; as Cluver Markotter puts it, the mere passing of time does not render the certificate invalid.
Regulation 7(5) is the two-year rule, and it is narrower than the way it is usually repeated. Subject to section 10(4) of the Act, the user or lessor may not allow a change of ownership if the certificate of compliance is older than two years. That is a restriction on transfer, not a shelf life. A certificate that is three years old is not void; it simply cannot carry a sale, and the seller who lets registration go through on it commits an offence under regulation 15.
Regulation 7(4) is the one that catches people between sales. Where an addition or alteration has been effected to an installation for which a certificate was previously issued, the user or lessor must obtain a certificate of compliance for at least the addition or alteration. Note "at least". The earlier certificate is not cancelled by the new work, and the new work is not covered by the earlier certificate. What you end up holding is a set of documents that between them either describe the whole installation or leave a gap.
A DB board rewired, a geyser replaced, a subdivided office, a solar array added on the roof: each of those is an alteration that needs its own paper. A document that accurately describes a 2021 installation says nothing about the circuits added in 2024, and no amount of it being recent helps.
That is the practical answer for anyone holding a certificate dated a few years back with a transfer three weeks away. Two years is the date to check first, because it is the one that stops the conveyancer. Then check the alterations, because a two-week-old certificate that omits a new inverter still leaves the inverter uncertified.
The 2026 edition moved the ground underneath it
The standard itself has changed, and recently. The SABS store lists SANS 10142-1:2026 (Ed. 3.03) with a publication date of 24 June 2026, replacing ed. 3.02 of 2024. ECA(SA) posted its notification of availability on 26 June, and Elite Energy gives 26 June as the publication date. The SABS listing says 24 June.
SABS's formal designation is Edition 3.03. ECA(SA) uses both names: its availability notice says Ed 3.03 and its course says Ed 3.3. They are the same document. Anything tested before it came out was tested against what is now a superseded edition.
ECA(SA)'s Highveld region has been running a 22-session course, "A Journey Through SANS 10142-1 (Ed 3.3)", since 7 September 2026. It covers every section, annex and the Edition 3.3 changes, on Mondays and Thursdays at 19:30, and was listed at R3 520 with all sessions recorded.
That is the useful signal in it. Twenty-two evening sessions exist because the changes are enough to be worth walking a licensed electrician through the whole document, not because electricians had forgotten the old one. An older certificate was written against an older edition, which is a reason to look at what was tested rather than to assume the paper is equivalent.
One thing that does not change with the edition is the form. The certificate itself is the one published in the Regulations, so a CoC issued against Edition 3.02 is still a valid certificate; it simply records a test against the standard as it then stood.
The question nobody asks at transfer
Two things must both be true for a certificate to be worth anything, and the second is almost never checked.
The installation must have been compliant. And the person who signed must have been registered on the day they signed it. Regulation 9(1) is blunt: no person other than a registered person may issue a certificate of compliance. A certificate issued by somebody who was not a registered person at the time is not a certificate at all, whatever it looks like on the page.
That check takes minutes and it is the one that fails. A firm's registration lapses, the electrician moves on, the certificate stays in the file and gets handed over three years later to a buyer who reads only the date. Who may lawfully issue one, and what a GreenCard does not authorise, is set out in our piece on issuing an electrical certificate of compliance.
Arabella holds the current registration status of every electrical contractor on the panel. That means we are occasionally the ones telling a seller, three days before transfer, that their certificate was signed by somebody no longer registered to sign it. That verification is what the client page describes.
On Monday
Take the CoC out of the building file and read the bottom of it, not the top. The registered person's name, their registration number, the date of issue and the description of the installation it covers.
If a transfer is anywhere in view, work out today whether that date of issue will be more than two years old on the day of registration. That is the one number that stops a sale, and it is the cheapest thing on this list to find out.
Then walk the building with that description in your hand and count what has been added since. Every item on that list is either covered by a certificate or it is not, and finding out in the week before transfer is what turns a compliance question into a price negotiation.
