How ISO, accreditation and CE marks are used on websites.

A certified company may not use ISO’s logo on its website; it may use the issuing body’s mark under that body’s rules, the accreditation body’s mark only together with the body’s mark, and it may not present CE as a certificate. Next to every mark stand the certificate’s standard and edition, its number and its scope.

Mark rules change depending on who issued the certificate, and most companies mix them up: ISO writes the standard, the certification body issues the certificate, and the accreditation body oversees the certification body. All three have a logo, and each has its own rules. How the certificate belongs on a website as a whole is covered in the certified manufacturer website guide; here there are only the marks.

Can the ISO logo be used on a website?

No. ISO does not certify and does not issue certificates; that is why it does not allow its logo to be used in connection with certification. ISO’s help page (May 7, 2026) ties this to three rules: certified companies may not use the ISO logo and use the certification body’s logo instead; no impression may be given that ISO certified the company; the word “ISO” may not be used in the name of the company, product or service, or in a domain name.

What is the correct wording?

The correct wording states the standard and edition on the certificate exactly: “certified to ISO 9001:2015” or, if the certificate was issued against the new edition, “certified to ISO 9001:2026”. “Certified to ISO 9001:2015” is the English pattern ISO recommends. The edition line matters especially this year: the new edition of ISO 9001 was published on September 16, 2026, and the 2015 edition was withdrawn the same day. Under Global ACI’s transition requirements, the last day for companies certified to the 2015 edition to transition is September 30, 2029; until then both editions are valid.

• Correct: “certified to ISO 9001:2015” — if the certificate was issued against the 2015 edition.
• Correct: “certified to ISO 9001:2026” — if the certificate was issued against the new edition.
• Wrong: “ISO-certified company” — no edition or standard, and it reads as if ISO certified it.
• Wrong: “ISO-approved product” — a management system certificate does not approve a product.

How is the certification body’s logo used?

The certification body’s logo is used under the conditions in that body’s own guidance; the conditions vary from body to body but converge on three points. First, the standard, its year and the certificate number stand next to the mark: SGS’s guide of September 30, 2026 recommends a separate certificate page and these three pieces of information, and BSI’s 2025 guide asks for the number below its logo. Second, the claim matches the certificate’s scope and sites; a site or product outside the scope does not go under the mark. Third, a management system mark does not go on the product — Bureau Veritas explicitly prohibits this for the product and primary packaging.

Writing the accreditation is part of this record too. On November 10, 2026, the certificate page of Fersan Tekstil wrote the accreditation bodies and accreditation numbers next to the names of the two bodies that issued its management system certificates. Before verifying a certificate, a buyer asks whether the body is accredited; if the answer is on the page, they skip a step.

When and how can the TÜRKAK mark be used?

A certified company may use the mark of the Turkish Accreditation Agency (TÜRKAK) on its stationery and promotional material only together with the certification body’s mark; not on its own and not on the product. These rules are written in TÜRKAK’s requirements document R10-06 (Rev.14, September 5, 2022). Under the same document, no impression may be given that TÜRKAK approved the product, the combined IAF MLA and TÜRKAK mark may not be used by clients and never goes on a product, and there are restrictions on the labels and packaging of products outside the scope of accredited product certification. Accredited management system bodies print a TÜRKAK verification QR code of at least 20×20 mm on the certificate; publishing the original certificate on the site is the shortest way to get this QR code to the buyer.

What is the status of the IAF and Global ACI marks?

A manufacturer may not use the IAF MLA mark on its own website; the Global ACI MRA mark that is to replace it had not been opened to anyone’s use as of November 10, 2026. IAF ceased operations on January 1, 2026, and Global ACI took its place. IAF’s mark rule (ML 2:2023) prohibited accredited bodies from letting their clients use this mark and, by Global ACI’s decision, remains in force until an equivalent document is issued. The October 2026 decision expected for introducing the new mark was not published; Global ACI’s own page says members cannot use the mark in any country for now. On the laboratory side, the same logic applies to the ILAC MRA mark: the accredited laboratory uses the mark together with its own accreditation symbol, and this right cannot be transferred; that the laboratory’s client may not use the mark on its own website is our inference from these rules.

Is CE a certificate?

No. CE is a mark by which the manufacturer itself declares that the product complies with EU rules, not a certificate issued by a body. According to the European Commission’s Your Europe page, there is no central EU body that grants permission or certificates for CE, and voluntary “CE certificates” have no legal standing. The EU’s Blue Guide (2022) defines CE as an important indicator of conformity rather than proof of it, does not regard it as a marketing tool and requires it to be affixed to the product or its data plate; the declaration of conformity is drawn up and signed by the manufacturer or its authorized representative.

That is why the phrase “CE-certified company” is built wrong: CE belongs to a product, not to a company. This is the conclusion we draw from what the sources say; the correct thing on the site is to say on the product page for which product and under which legislation CE is affixed, and, if a notified body was involved, to write its name and number.

What does not go on the product and packaging?

Management system marks and accreditation marks do not go on the product; for food certificates the prohibition also covers consumer packaging. Bureau Veritas prohibits management system marks on the product and primary packaging, accepts them on secondary packaging only with an explanation, and does not want the ISO 22000 mark on any packaging. The FSSC 22000 logo may not be used on the product, the label, any packaging or a certificate of analysis; BRCGS’s October 2026 guidance keeps both the logo and the BRCGS wording off consumer packaging. The TÜRKAK mark never goes on a product under any circumstances. A website is free ground under most of these rules; but a management system logo placed over a product photo on the site reads like the on-screen counterpart of the packaging prohibition.

What happens on the website when a certificate is suspended or ends?

The mark and every reference to the certificate are removed. SGS requires the claim to come down when a certificate ends or is suspended, Bureau Veritas that use stop on suspension and withdrawal, and IFS that the logo be removed immediately on suspension or withdrawal. BRCGS’s October 2026 guidance states that the logo and all claims are removed when the certificate ends; for IATF 16949, BSI and DQS require every reference, including on the website, to be removed. Having the mark not on one page but in the template — in the header or footer — is among the main things that make this removal harder.

Textile marks: how are OEKO-TEX, GOTS and GRS used on a website?

All three tie the mark to the product or the certificate, not to the company’s general image. OEKO-TEX’s labelling guide is binding: a claim may be used on the site, but a labeled product is required, every label carries a QR code or label number, and a buyer verifies the number with Label Check; a wording that has not been pre-approved needs OEKO-TEX’s approval. GOTS marks may not be used in the site’s header or footer, only next to the certified product or the certificate’s content; the company claim is written as “GOTS certified”, with the certification body’s name and the certificate number.

For Textile Exchange standards (GRS, RCS, OCS), the claims rule since September 27, 2026 is TE-301 V1.4: only an organization with a valid scope certificate may make a company claim; the claim on a web page carries the standard’s name, the certification body and the license number and, next to it, says that only products covered by a valid transaction certificate are certified. Product claims and images go through the certification body’s approval. A new policy (TE-MM-POL-301) taking effect on December 31, 2026 will replace these rules; the transition runs until June 30, 2029. The textile manufacturer’s website as a whole is described on our B2B website page.

Which mark stands on a website under which condition?

Which mark can be used on a website

1. 01ISO logo
2. 02IAF MLA mark
3. 03Global ACI MRA mark
4. 04ILAC MRA mark
5. 05TÜRKAK mark
6. 06CE
7. 07GOTS
8. 08GRS and Textile Exchange marks
9. 09FSC
10. 10Certification body’s logo
11. 11OEKO-TEX

How to test it: look at your site’s header and footer. If there is a certificate logo there, ask whether every page the logo appears on falls within that certificate’s scope; a single page that does not means the logo should not be there. Then look for the standard’s edition and the certificate number next to every logo.

The information here is not legal advice; confirm the current requirements on mark use from your certification body’s rules and from official sources.

Let’s read the marks on your site together with this table: in a free preliminary review we send a five-point written note on where each mark is used, what information is missing next to it and which references should be removed.

Request a free preliminary review

For a site that shows your certificates as a record buyers can verify, B2B website builds and measures the certificate page, the product scope and the path to a quote together.

FREQUENTLY ASKED QUESTIONS

Can I use the certification body’s logo on my homepage?

You can if your body’s guidance allows it, but the standard’s edition and the certificate number should stand next to it, and the homepage should describe the activity within the certificate’s scope. Linking the logo to a separate certificate page is the easiest way to carry the scope and date information.

Can I show the CE mark on my website?

You can, but as a product mark: on the product page, stating for which product and under which EU legislation it is affixed. CE is not a certificate; do not use a phrase like “CE-certified company”.

Can I put the accreditation body’s logo on its own?

No. Certified companies may use the TÜRKAK mark only together with the certification body’s mark; clients may not use the IAF MLA mark at all.