The Independence Signal Buyers Are About to Lose: ISO/IEC 17020’s Type B and C

For years, an inspection body’s type told you something useful at a glance. Type A meant an independent third party. Type B meant an in-house body inspecting its own parent organization. Type C meant a body that both made or supplied something and inspected it, under internal safeguards. ISO/IEC 17020:2026 removes that three-way signal and replaces it with two boxes: Type A, and everything else, Type non-A. When the change takes effect on the public record, a procurer reading a directory will no longer be able to tell a former in-house Type B from a genuinely arm’s-length operation. They will both just say non-A.

Two honest caveats up front, because they shape the whole piece. First, this has not happened yet. The 2026 edition was published on 27 March 2026, but transitions only begin around 1 September 2026, become mandatory from 1 January 2028, and run to a deadline of 27 March 2029. As of mid-2026, every accreditor directory we checked still shows the old Type A, B and C labels. There is no overnight remap to report, only a mandated one approaching. Second, the change is not a loosening of impartiality; the 2026 edition is explicit that impartiality requirements apply equally to both types. What is being lost is not a safeguard but a public signal, and this article is about what that signal was, who relied on it, and what to watch as it disappears.

The change, and when it reaches the public record

The rule itself is settled. The foreword to the 2026 edition states that the categorization of an inspection body’s independence type has been changed to Type A and Type non-A, and the detailed requirements now sit in a normative Annex A. The former Type B and Type C both fall under Type non-A. That is not in question.

What is still in the future is the relabelling on accreditor directories, and it will not happen on a single day. A body’s published designation changes when it is assessed against the 2026 edition, and that follows each accreditor’s transition schedule. UKAS, which has published the clearest dates, opens transition from 1 September 2026 and makes assessment against the 2026 edition mandatory from 1 January 2028; the global ILAC deadline, after which 2012-edition accreditations are no longer recognised, is 27 March 2029. So the old labels will not vanish at once. They will fade body by body across roughly two and a half years, as each one is reassessed. A directory in 2027 will be a mix of old and new, which is its own kind of confusion for anyone trying to read independence off the page.

What the old label told a buyer, and what non-A hides

The value of the A, B, C model was that it put a body’s structural independence on the public record in a single letter. A procurer choosing an inspector could read the type and know, before any conversation, roughly how independent the body was of the thing being inspected. Type A was the arm’s-length third party. Type B signalled an in-house body inspecting its own organization’s items, the kind of arrangement a buyer might accept for internal assurance but not for independent verification. Type C signalled a body connected to the design, manufacture or supply of the item, relying on internal safeguards to stay objective. You did not have to trust the letter blindly, but it told you which questions to ask.

Under the 2026 model, two of those three signals merge. A former Type B in-house body and a former Type C supplier-linked body will both be published as Type non-A, sitting under the same label as any other body that is not a pure third party. The information has not been deleted from the world, a non-A body still has to document which independence safeguards apply to it, but it has been removed from the at-a-glance public view. A procurer scanning a directory in 2028 will see Type A or non-A, and non-A no longer tells them whether the inspector is an independent contractor, the manufacturer’s own quality department, or something in between.

It is worth being precise about what this does and does not mean. It does not mean a non-A body is less impartial; the standard holds both types to the same impartiality requirements, and a non-A body must still segregate inspection from its other activities and prevent the same person from both producing and inspecting the same item. What changes is the buyer’s ability to read the body’s structural position off the label. The due diligence that the label used to do for free now has to be done by the person commissioning the inspection.

The labels are still everywhere, for now

To see how live the old model still is, look at what accreditor records showed in mid-2026. On the UKAS side, schedules issued to bodies such as Bradley Environmental Consultants and Axiom Engineering Associates still carried the Type C designation, and Fourbridge Consulting received a fresh Type C schedule as recently as February 2026. Lloyds British describes its own UKAS accreditation as Type C. In Australia, NATA records still print the type too: bodies such as Weld Integrity and CIS Control Union Australia appear as Type A, while Air-Met Scientific publishes a NATA certificate identifying it as a Type C inspection body. These are simply the current published designations, captured as factual snapshots, not a comment on any of these bodies; naming a body as Type C is no criticism, since the standard is explicit that impartiality applies regardless of type.

The point of listing them is that each of these records is a “before” snapshot. The interesting moment will be the first time one of these pages is reissued after a 2026-edition assessment, when the schedule will reference ISO/IEC 17020:2026 and the Type C or Type B wording gives way to non-A. Anyone wanting to document the change as it actually happens can bookmark a known Type B or Type C body now and revisit the same record after its next assessment, rather than waiting for an announcement that, as the next section shows, the accreditors are in no hurry to make.

The change buyers are not being told about

Here is the part that should give a procurement team pause. The official transition communications are organised around dates and process, not around the loss of the independence signal. UKAS’s own ISO/IEC 17020:2026 transition bulletin walks through timings and what accredited bodies must do, but it does not use the phrase Type non-A or explain that the old A, B and C categories are collapsing. A reader relying on that bulletin to understand the transition would come away knowing the deadline and missing the relabel entirely.

That is not necessarily evasive. From the accreditor’s point of view, the change is a technical reclassification handled at assessment, and the transition guidance is aimed at the bodies being assessed, not at the procurers who read directories. But the effect on the buyer side is real. The people who used the type as a quick independence check are precisely the people the official messaging does not address, so unless they read the standard itself or a piece like this one, the first they will know of it is a directory entry that quietly stopped distinguishing in-house from independent. A signal does not have to be removed loudly to be removed.

What to do while the labels are changing

Let me be direct about the practical response, because it is simple. If you commission inspections and independence matters to you, stop reading it off the type letter and start asking the body directly: are you independent of the party whose item you are inspecting, and what safeguards prove it? That question worked before the change and it will keep working after, when the directory no longer answers it for you. During the transition window, treat any non-A label as the start of a conversation, not the end of one, and do not assume two non-A bodies are structurally alike.

If you run an inspection body that is reclassifying, the same clarity helps you. Work out your type per activity and be ready to explain your independence basis to clients who can no longer infer it from a letter; the Type A vs Type non-A guide walks that decision and the documents it drives, and the transition guide sets it in the wider deadline. ANAB’s note that the independence model is being significantly revised is on the ANSI National Accreditation Board blog, and the normative Annex A sits in the standard on the ISO catalogue page.

For bodies that would rather rebuild their independence and impartiality documentation from prepared templates than draft it under deadline, the ISO/IEC 17020:2026 Documentation Kit is structured to the 2026 Annex A.