ISO Accreditation vs ISO Certification: Which Do You Need?

Presenting your business 2

You've got the Certificate but are you certified to the ISO Standard or accredited to it?

It may seem unimportant in the scheme of things but people, like potential customers, will judge you based on your correct use of technical and allied terms.

‘Accredited to ISO 9001’ is a frequently seen claim on the internet and other media, and maybe you say this too. And it is always untrue!

This is because it is not possible to be accredited to ISO 9001.  The only possibility is certification to ISO 9001. And here’s why.


ISO does not itself certify organizations, contrary to common belief. Many countries have formed accreditation bodies to authorize certification bodies, which audit organizations applying for ISO 9001 compliance certification. The diagram illustrates the relationships concerned.

Accreditation vs Certification


In the Certification process, the applying organization is assessed based on an extensive sample of its sites, functions, products, services and processes.  

A list of problems ("non-compliance") is made known to the management. If there are no major problems on this list, or after it receives a satisfactory improvement plan from the management showing how any problems will be resolved, the certification body will issue an ISO 9001 certificate.

An ISO certificate is not a once-and-for-all award, but must be renewed at regular 3 year intervals recommended by the certification body. There are no grades of competence within ISO 9001. Either a company is certified (meaning that it is committed to the method and model of quality management described in the standard), or it is not.

Certification Bodies

There are hundreds of certification bodies operating across the globe. They are independent legal entities, mostly private businesses though some are associated with national standards organisations. 

They carry out their work in compliance with ISO 17021, which is an ISO standard for the management and administration of certification bodies.  The intention is that all certification bodies should offer external auditing services of an equivalent standard. 

However, there are a number of bogus certification bodies in operation.  The question then that comes to mind is: how do we distinguish between a genuine certification body and a bogus one.  The answer lies in accreditation which we look at next.


Accreditation boards exist with the purpose of ensuring that accredited certification bodies operate to a uniform, and high, standard of external auditing.  Typically, there is one national accreditation board per country.  

These boards audit the activities of certification bodies in a manner very similar to the way in which certification bodies audit certified companies.  Occasionally, you will find that when a certification body comes to carry out an external audit at your site, the auditor is accompanied by an observer from the accreditation board.

This is part of the accreditation board’s auditing activity. And geared towards ensuring a uniform standard of auditing by the certification body.

IAF – International Accreditation Forum

In order to ensure the uniform standard between accreditation boards, they have joined together to form the International Accreditation Forum, IAF

This global group, of approximately 60 boards, are actively engaged in maintaining and improving auditing standards.  And to that end they continue to produce guidance to be followed, both by accreditation boards and by certification bodies.IAF-logo-205x132

The various accreditation bodies have mutual agreements with each other to ensure that certificates issued by one of the Accredited Certification Bodies (CB) are accepted worldwide.

[For a listing of UK Accredited Certification Bodies with details of scope of their accreditation, visit the UKAS site; for Ireland visit INAB.]

International recognition

So we see that the overall intention is to ensure that your organisation is audited by an accredited certification body. And this, so that you will be audited fairly to a high, uniform standard, which will have international recognition.

[Don’t forget: Your organization is certified to ISO 9001 or other management system standard.  And it is your Certification Body that is accredited to ISO 17021]

Choice of Lead Implementer Courses

Accredited vs. Certified Training

There is no international body, the equivalent of the IAF, when it comes to training.  Many commercial and/or professional bodies claim to accredit certain courses. 

Sometimes this 'accreditation' can be purchased by the training organization. So, as a buyer of training, you need to check out claims regarding accreditation of the training course of interest.

in the marketplace, generally speaking, the distinction between accreditation and certification is becoming blurred. The terms, where training is concerned, are routinely used interchangeably.

As for deGRANDSON Global, we hold ISO 29990 Certification and we are audited against the requirements of that Standard every year. Our international recognition as a professional Learning Service Provider is what we value.  For more information, see 'Our ISO 29990 Certification'. 

What is ISO 9001 QMS

Written by Dr John FitzGerald

Director and founder of deGRANDSON Global. After 15 years in the manufacturing industry, John has spent the past 25 years training, consulting and auditing ISO 9001 and other management systems.

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