The mechanism is simple to state. There is a published list of product categories subject to compulsory certification. If your product falls inside one of them, it needs a certificate and it needs the mark on it; if it falls outside, nothing of this applies and no body can require it of you. Everything difficult about the subject comes from the first question, which is answered too quickly by almost everyone: is this product in a listed category, and in which one?
A list, not a level of quality
The list is organised by category and sub-category, and the entries describe products by function and by conditions of use rather than by the names manufacturers give them. That is why borderline cases are the normal case rather than the exception. A device powered from the mains is treated differently from the same device running on a battery. A component sold to be built into something else is not the finished appliance. A product sold only to professionals may sit outside a category written for consumer use. Each of those distinctions decides whether you have a procedure in front of you or nothing at all.
Which is why the classification is confirmed in writing, before anything else is engaged, by a certification body entitled to issue for that category or by the competent authority, on the basis of the real technical file rather than a product sheet. Two answers obtained this way are both useful: a confirmation that you are inside a category, which starts a project, and a confirmation that you are outside it, which you will be asked for later by a customs broker, a marketplace or a buyer's compliance department. The answer also depends on the product as it will actually be sold in China, not on the European version of it.
Who applies, and why that is not an administrative detail
The applicant can be the foreign manufacturer, a Chinese subsidiary of it, or an importer or agent established in China. The choice looks procedural and is not, because the certificate carries the applicant's name, and the applicant is the party who can renew it, extend it, add a factory to it or modify it. A certificate taken out in your distributor's name is a certificate you cannot move: change distributor and you either begin again or negotiate for a document that is legally theirs, at a moment when you have very little to negotiate with.
Where you have no entity in China, the arrangement that keeps things in the right hands is an agent acting on your behalf, with the certificate in the manufacturer's name and the agent named as the local representative for the file. Say it in the agency or distribution contract, in plain terms: who applies, in whose name the certificate is held, who pays for the tests and the inspections, who keeps the originals, and what happens to all of it if the relationship ends. Written at the start, those lines are housekeeping. Raised later, they are leverage.
The factory, the laboratory, the inspection
Two things are examined, and they are independent of each other. The product is tested, by a designated laboratory in China, on samples drawn from the production that will be sold — with their own components, their own power supply, their own enclosure, not on a hand-built prototype that behaves better. And the factory is inspected, at the production site wherever in the world it stands, by inspectors who look at the system that makes the product repeatable rather than at the product itself.
- Incoming control of components. What is checked when a batch of parts arrives, against which document, and what happens to a batch that fails. A supplier change made quietly on the shop floor is exactly what this is designed to catch.
- Routine tests at the end of the line. Which tests are run on which proportion of output, with what equipment, and whether the results are written down somewhere a third party can read.
- Calibration of instruments. A measurement is only evidence if the instrument that produced it was calibrated, traceably, on a schedule the factory can show.
- Handling of non-conforming units. Where a rejected unit goes, who decides it can be reworked, and how the factory prevents it from leaving with the good ones.
- Control of changes. Who is allowed to modify a drawing, a component reference or a process, and how that decision is recorded. This is the point most small factories fail, and the one that matters most once the certificate exists.
A factory that makes good products but keeps no records fails a factory inspection, and the surprise of that is a recurring scene. The inspection is also not a single event: follow-up visits recur after the certificate is granted, and the certificate is maintained rather than acquired. Which means the person at the plant who keeps the files is as important to your market access as the engineer who designed the product, and should be told so.
Why the mark has to be on the product
The certificate is a piece of paper in a drawer; the mark is what everybody actually looks at. It is how a customs officer, an inspector in a shop, a marketplace's compliance team and a buyer's quality department see that a product is certified without requesting a document and waiting for an answer. So the mark is applied to the product itself, usually to the packaging as well, and the right to reproduce it comes with the certificate, under rules about its form and legibility.
Two consequences follow, and both are expensive. A certified product shipped without the mark is treated in practice as uncertified: it can be held at the border, refused by a platform or pulled from a shelf, and the fact that the certificate exists is a thing you then prove slowly. And the mark used on a product the certificate does not cover — a variant, a second factory, a model that was added to the catalogue without going through the file — is a different and worse problem, because it is not an omission. Neither is helped by a European mark on the same product: the two systems recognise each other in neither direction, and a declaration you signed yourself has no standing in a scheme built on third-party certification.
What a change restarts, and the date you are about to announce
A certificate describes a configuration: a model, a list of critical components, a factory. Change the power supply, the motor, the cable, the material of the enclosure, the firmware where it bears on safety, or the site of manufacture, and you have changed the thing that was certified. Depending on the change, the file is notified, the product is retested, the certificate is extended, or a new application begins. The usual failure is not bad faith: a purchasing department substitutes a component because the original went out of stock, nobody tells the person who holds the certificate, and the goods that arrive at the border no longer match the file. Name the person who must be told before any component is substituted, and give them the right to say no.
- Get the classification confirmed in writing, for the product as it will be sold in China, by a body entitled to issue for the category. Everything downstream depends on this answer, and it is the cheapest part of the project.
- Settle who applies and in whose name the certificate will be held, before any test is ordered. Correcting this afterwards means starting the application again.
- Freeze the configuration: the bill of materials, the critical components with their references and their suppliers, the firmware version, the factory. What is not frozen will change during the procedure, and the procedure will have to follow it.
- Ask the factory to show you the records the inspection will ask for, before the inspectors do. A plant seeing those questions for the first time on the day of the visit is a plant that will need a second visit.
- Only then put a date in front of a customer, and put it after the certificate rather than after the tests. A product that passed the laboratory and is waiting for a factory inspection is not a product you can sell, and a launch announced on the test result is a launch you will move.
Before you promise a market-entry date to anyone, hold the certificate in your hand or know precisely what is left to happen and who is doing it. The parts of this procedure you control — the technical file, the frozen configuration, the factory's records — are the parts that create the delays, and they are also the only parts you can shorten. The rest runs at its own pace, and it varies with the category, the body and the laboratory, which is a good reason to ask for the schedule in writing rather than to assume one.
Where to read it yourself
Official pages, opened and checked on 15 October 2026. Where a rule changes, these are the addresses that change with it — this article does not.