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Your ISO 9001:2026 transition deadline is probably not 2029

ISO 9001:2026 publishes on 16 September 2026. Your 2015 certificate does not expire that day. But the audit that has to carry your transition is set by your cycle, not by the end of the window, and for a lot of organisations it lands in 2028.

The dates are now confirmed. ISO 9001:2026 was published on 16 September 2026. UKAS has set 30 September 2029 as the date by which certification bodies must transition their certified clients, and certification bodies must stop accepting new applications to the 2015 edition after 16 March 2028 (UKAS technical bulletin). Your own certification body sets your audit dates, so treat the output as a planning position to agree with them, not a contractual date.

Now check your gaps

Your deadline is only half of it. Answer 15 questions on what ISO 9001:2026 changes and see what to fix before your transition audit.

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Why the end of the window is the wrong date to plan to

Certification bodies cannot transition you on a whim. It happens at a scheduled audit, and the last one that falls inside the window is the one that has to carry it. Work backwards from your own cycle and the real date is usually a year earlier than people assume.

The other reason to move early is capacity. Every certified organisation in the country transitions in the same three-year window, and assessor availability in the final year is the constraint nobody budgets for. An organisation that transitions at its 2028 surveillance treats it as a routine update. One that waits for a 2029 recertification is booking into the crush.

If you want the longer version, the two companion pieces are what is changing and how to prepare and what happens to your 2015 certificate.

Transitioning is an evidence exercise

Most of the work is not rewriting the manual. It is showing an assessor that your management system already does what the new edition asks about, and finding the evidence to prove it. PICMS holds document control, the internal audit programme, clause coverage across the cycle, CAPA and the risk register in one place, built by an IRCA Registered Principal Auditor around what an assessor actually asks to see.

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