Roadworthy Certificates for Trucks in South Africa: How Often and Why

A heavy goods vehicle in South Africa must pass a roadworthy test every year, before you renew its licence. A bus must be tested every six months. And any vehicle must be tested before it can be registered in your name. Miss the annual test and the licence renewal does not happen — which takes the truck off the road as surely as a breakdown does.

This page covers when a roadworthy certificate is required, what the terminology actually means, and why the 3,500 kg line keeps appearing.

How often heavy vehicles must be tested

Vehicle	Testing frequency	When
Heavy-load vehicle (excluding buses)	Every year	Before you renew the motor vehicle licence
Vehicle used for public transport	Every year	Before licence renewal
Bus	Every six months	—
Any vehicle being registered in a new name	Once, before registration	Before you can register it

The annual test is tied to licence renewal rather than standing on its own, which is the practical point: an expired roadworthy blocks the licence disc, and an expired disc is what a traffic officer sees first.

The 3,500 kg line, and why it keeps coming back

A “heavy” vehicle in South African road traffic law is one with a gross vehicle mass above 3,500 kg. That single threshold does four separate jobs, and operators routinely meet it four times without noticing it is the same line:

• Driving licence — below 3,500 kg is Code B. Above it you need Code C1 or heavier. See driving licence codes in South Africa.
• Operator registration — a goods vehicle above 3,500 kg GVM must be registered under section 45 of the National Road Traffic Act and display an operator card. See what a goods operator must register for.
• Roadworthy testing — above the line the vehicle is a heavy-load vehicle and moves onto the annual cycle.
• Trailers — a trailer over 750 kg pushes the whole combination into the EC licence codes, a separate but related threshold.

If you are buying your first truck, this is the moment the compliance burden steps up. A 3.5-tonne bakkie and a 4-tonne truck are one licence code, one registration requirement and one testing cycle apart.

Certificate of Roadworthiness or Certificate of Fitness?

You will see both, and in South African practice they are used for the same thing:

• CoR — Certificate of Roadworthiness. The formal term. It is proof from an authorised testing station that the vehicle passed the roadworthiness test.
• COF — Certificate of Fitness. The term more commonly used in the freight industry, and the one you will hear at a weighbridge or a client’s gate.

Do not read a distinction into which word a broker or a shipper uses. If they ask for a COF and you hold a valid CoR, you hold what they are asking for. The document that matters is the one issued by the testing station after a passed test.

Where the test is done, and how you apply

• Testing is done at a private or public vehicle testing station. Private stations are accredited to perform the test; the certificate carries the same weight.
• You apply on the ACR — Application for Certification of Roadworthiness. The form is obtainable at the testing station itself, so there is nothing to download in advance.
• On a pass, a notice is issued at the end of the test.

Testing stations operate under South African National Standards governing how the test is performed, which is why a certificate from one accredited station is equivalent to one from another. What varies between stations is queue time and the strictness of the inspector, not the standard.

Why the roadworthy matters commercially, not just legally

Roadworthy sits in a small group of documents that are checked by three different parties for three different reasons:

• Traffic authorities — because an unroadworthy vehicle is an offence and the licence disc depends on it.
• Shippers and brokers — because they will not put cargo on a truck whose fitness has lapsed, and most will not allocate a load without seeing it.
• Insurers — because a claim on an unroadworthy vehicle is an argument you do not want to be having after an incident.

That is why an expired roadworthy is more expensive than the test: it removes the truck from the road, removes it from load allocation, and weakens a claim, all at once.

Keeping ahead of the expiry

The roadworthy runs on its own clock, separate from the licence disc, the operator card, the driver’s PrDP and the GIT policy — and they do not expire together. Kweli tracks fifty document types across company, vehicle, driver and permit level with a renewal window on each, so an operator sees what is about to lapse rather than discovering it at a roadside stop. The document that strands a truck is never the one you were watching.

Source and currency

Sources: testing frequencies and the ACR application are as published by the South African Government’s roadworthy certificate service. Roadworthiness is governed by the National Road Traffic Act 93 of 1996 and its regulations; testing stations operate to South African National Standards. The 3,500 kg definition of a heavy motor vehicle follows the licence-code mass bands in the National Road Traffic Regulations.

We have not published a checklist of what is inspected during the test. We could not verify a definitive list to the standard the rest of this page is held to, and an incomplete inspection checklist would give false confidence before a test. Ask your testing station what they check — they will tell you, and it is the only list that matters on the day.

Current as at 14 August 2026. Testing intervals are stable, but fees and station accreditation change. Confirm with your testing station or licensing authority.

Keeping the truck earning

A truck with current papers should not be standing. List it on the Kweli Load Exchange — your compliance documents sit on the profile, shippers see what you hold before they allocate, and the trips you complete build a record that travels with you.

Roadworthy, licence and cover are checked by three different parties. See truck insurance in South Africa for what is required and by whom.