Accreditation marks on a peptide test report: A2LA, ANAB and the ILAC/IAF merger, assessed

A research-supply certificate of analysis now tends to arrive with a badge on it. Somewhere near the purity figure sits an accreditation mark — most often, on a US-issued report, A2LA or ANAB — and buyers read it the way they read the percentage: as a grade. It is not a grade. It is a statement about a laboratory’s competence within a written scope, issued by a third party, and it says nothing at all about the number printed beside it. This desk assesses the mark as documentation.

What the mark attests

An accreditation body assesses a laboratory against ISO/IEC 17025, the international standard for testing and calibration laboratories, and grants accreditation for named activities. The word doing the work is scope. Accreditation is not held by an organisation in the abstract; it is held for particular tests, by particular methods, in particular disciplines.

A2LA’s own site makes the structure legible. Alongside its ISO/IEC 17025 testing and calibration laboratory accreditation it lists a long series of separately named programmes — Chemical Testing, Biological Testing, the AOAC Laboratory Accreditation Program, Cannabis Testing, Laboratory Accreditation for Analyses of Foods, the FDA ASCA pilots, WADA Testing, Calibration — plus further accreditation streams under ISO/IEC 17020 for inspection bodies, ISO/IEC 17065 for product certification, ISO/IEC 17043 for proficiency testing providers, ISO 17034 for reference material producers, ISO 15189 and CLIA for clinical laboratories, and ISO 20387 for biobanking. That is a catalogue of scopes, not a seal of general quality.

No research-peptide programme appears on that published list. The desk states that as what it is — an absence from A2LA’s own published programme catalogue, not a claim that no laboratory anywhere may hold a scope covering peptide analysis. A chemical-testing scope written around chromatographic identity and purity work can plainly reach a peptide. The point is that a reader cannot infer it from a logo; the scope document either names the method or it does not.

What an accreditation mark on a report settles, and what it leaves open

Accreditation, not certification	The laboratory was assessed as competent; nothing was certified about the material
Scope-bound	Granted for named disciplines and methods, listed on the body's own certificate
Body-specific	A2LA and ANAB are separate US bodies; each has to be checked on its own site, not on the other's
Silent on the result	An accredited laboratory can issue an accurate report of a poor batch
Silent on the vendor	The mark belongs to the laboratory, not to whoever paid for the test or reprinted the PDF
Checkable	Only against the accreditation body's own register, by certificate number
Mutual recognition	The cross-border wording on reports is currently in transition

The wording is mid-rename

The transition is the live part. ILAC and IAF — the international cooperations behind, respectively, laboratory accreditation and management-system certification — have established a merged body, and ILAC’s site now heads itself Global Accreditation Cooperation Incorporated and announces its official launch, alongside a short history of the decision and the election of an incoming chair. This desk did not read a launch date and does not print one.

What matters for paperwork is that the same site still runs “ILAC MRA and Signatories” in its navigation and still offers signatory search under the ILAC MRA heading. So both forms are correct at once for now, and a report citing the ILAC MRA is not thereby stale, nor is one citing the new body thereby wrong. Anyone building a checklist that pattern-matches on the phrase will get a false negative for the duration.

Verifying one, if you are shown one

Three fields, which a reprinted badge rarely carries in full: the accreditation body, the certificate number, and the laboratory’s legal name. Take those to the body’s own organisation search — A2LA’s site carries a Search Organizations entry point. For ANAB the same check starts on ANAB’s own site, whose ISO/IEC 17025 testing-laboratory page refused this desk’s automated fetch — a browser rather than a script. Then read the scope document, not the certificate, and confirm the method used on your report appears in it.

The failure mode is not forgery. It is a genuine mark, genuinely held, for work that has nothing to do with the assay in front of you — and a supplier reprinting a laboratory’s letterhead as though the accreditation attached to the vial. Which laboratory ran the work is its own question, and one that moves: a contract testing house can change hands mid-year without a line of the report format changing.

Pros and cons

A2LA and ANAB marks as evidence on a research-supply COA

Pros

A2LA publishes an ISO/IEC 17025 testing-laboratory accreditation programme; ANAB's own 17025 page refused this desk's fetch
A2LA publishes an organisation search, so a claimed accreditation is checkable by a buyer rather than taken on trust
A2LA publishes its programme catalogue openly, which makes the scope-bound structure of accreditation visible before you ask
Scope documents name methods, giving a reader something falsifiable to match against the assay on the report
Accreditation is assessed by a third party on a recurring cycle, which is more than a supplier's own word

Cons

No research-peptide programme appears on A2LA's published accreditation catalogue, so the mark never speaks to this category directly
The mark attests competence, not the correctness of any individual result — an accredited laboratory reports bad lots accurately
It transfers to a vendor's marketing far more easily than it transfers to a vial: the logo is trivially reprinted
'ISO 17025 certified' is the phrasing this market uses, and it is wrong in a way that hides the scope question
Verification is a manual register lookup per report; ANAB's 17025 page blocks automated retrieval, so it cannot be scripted
The mutual-recognition wording is mid-transition, so two different phrasings are both current and neither confirms the other

Verdict

The mark earns its place only once the certificate number and the scope have been checked. Until then it is a picture. Everything above concerns the paperwork behind materials supplied for laboratory research use only; nothing here is about what any compound does, and no compound discussed is intended for human consumption.