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PECB · ISO/IEC 42001 · Lead level

The PECB ISO/IEC 42001 Lead Implementer exam format, explained

Eighty questions in three hours, open book, seventy per cent to pass. Planning carries a quarter of the paper on its own, and the domain on the AI management system itself, the one most people expect to dominate, is five questions.

Reviewed by GoToCertify’s accredited trainers

80Questions
3 hTime limit
56 / 80Pass mark
OpenBook

The exam on paper

The PECB Certified ISO/IEC 42001 Lead Implementer exam tests whether you can plan, implement and run an AI management system (AIMS) based on ISO/IEC 42001, rather than audit one.

Questions80, multiple choice with three options each — standalone and scenario-based
Duration3 hours
Pass mark70% — 56 of 80
MaterialsOpen book — a hard copy of ISO/IEC 42001, the training course materials and your own notes from the course
DeliveryOnline in the PECB Exams app with a remote invigilator, or on paper at a PECB partner’s site
Non-native language30 additional minutes for Lead-level exams taken on paper, on request
RetakesOne free retake within 12 months for candidates trained by a PECB partner (included in our Exam Bundle)
Typical courseFive days, with the exam on the fifth
ValidityThree years, with CPD and an annual maintenance fee of USD 120 (first year included)
CredentialPassing the exam is one of several requirements. See below

Planning carries a quarter of the paper

Six domains, eighty questions, published weights:

Planning an AIMS implementation
20 questions · 25%
Implementing an AIMS
18 questions · 22.5%
Fundamental principles and concepts of AI and an AIMS
17 questions · 21.25%
Monitoring and measurement of an AIMS
10 questions · 12.5%
Continual improvement and preparing for the certification audit
10 questions · 12.5%
The AI management system (AIMS)
5 questions · 6.25%

Planning and implementation together are 38 questions, almost half of the paper. Add the principles domain and three domains cover 55 of the 80 questions: one short of the pass mark. Get those three right and the other 25 questions only decide how comfortably you pass.

The principles domain is heavier than it looks. It is where the AI concepts and terms of ISO/IEC 22989 sit, next to the management system vocabulary. Candidates who already know ISO/IEC 27001 recognise the structure of the standard straight away; the AI-specific terms are what they have to learn.

The credential needs years, not just a pass

The exam is one requirement of several. PECB awards four credentials from this paper, separated by professional experience and by hours of AIMS project activity:

Provisional ImplementerNo experience required
Implementer2 years, 1 in AI management · 200 hours of AIMS project activity
Lead Implementer5 years, 2 in AI management · 300 hours
Senior Lead Implementer10 years, 7 in AI management · 1,000 hours

What this means for how you prepare

Revise planning and implementation hardest. Together they are 38 of the 80 questions.

Learn the AI vocabulary, not only the clauses. The principles domain draws on AI concepts that ISO/IEC 27001 or ISO 9001 experience does not give you.

Index your notes by domain before the exam. Three hours for eighty questions is two minutes and fifteen seconds each: open book helps only if you can find things quickly.

Questions people ask

How many questions are in the PECB ISO/IEC 42001 Lead Implementer exam?

Eighty multiple-choice questions, with three options each, standalone and scenario-based.

What is the pass mark?

70 per cent, which is 56 of 80.

How long is the exam?

Three hours. Lead-level exams taken on paper allow 30 extra minutes, on request, for candidates sitting in a language other than their own.

Is it open book?

Yes: a hard copy of ISO/IEC 42001, the course materials and your own notes from the course.

Does passing make me a Lead Implementer?

Not by itself. That credential also requires five years of professional experience, two of them in AI management, plus 300 hours of AIMS project activity.

Sources. Every figure on this page comes from PECB’s published candidate handbooks, brochures and certification pages, checked in October 2026.

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