The ISO/IEC 42001 Lead Implementer exam on the route AI Training Skool teaches has 60 scenario-based questions, taken online under a proctor, and you need 70% to pass. You have 90 minutes, and the exam is closed book. Two attempts come with our course, so a retake costs nothing extra.
Here is the exam at a glance:
| Exam detail | What to expect |
| Number of questions | 60 |
| Question style | Scenario-based, multiple-choice |
| Delivery | Online, supervised by a remote proctor |
| Materials allowed | None: closed book, with no notes, devices or outside help |
| Pass mark | 70%, which is 42 of the 60 scored questions |
| Time limit | 90 minutes |
| Exam domains | Four: governance and leadership (about 25%), implementation and operational control (about 40%), performance evaluation and improvement (about 20%), ethics, transparency and external engagement (about 15%) |
| Attempts | Two, both included in the course price |
| Resit rules | At least 30 days between attempts, up to two resits within 12 months, and a discounted re-examination fee for any resit beyond the one our course includes |
| Eligibility | At least 32 contact hours of structured ISO/IEC 42001 training; our course provides 32 CPD hours |
Your booking instructions cover the practical details you need to check yourself: which photo ID is accepted, the computer, webcam and room setup rules, and how far ahead you can reschedule. Read them as soon as you book, so nothing on exam day is a surprise.
What does the Lead Implementer exam test?
The ISO/IEC 42001 Lead Implementer exam tests whether you can make the decisions an implementer makes inside an Artificial Intelligence Management System (AIMS), applied to short workplace scenarios. It does not test whether you can build or tune a machine learning model. A February 2026 thread on Reddit’s r/AI_Governance titled “Just passed ISO/IEC 42001 Lead Implementer” makes the same point: the exam is about managing AI systems responsibly through controls and a management system, not about building models.
That focus follows from what the standard is. ISO/IEC 42001:2023 sets requirements for organizations to establish, implement, maintain and continually improve an AI management system. A Lead Implementer exam turns those requirements into the choices a person makes while doing that work.
The questions fall into four domains, weighted roughly as follows:
| Exam domain | Approximate weight |
| Domain I: Governance and leadership in AI management systems | About 25% |
| Domain II: Implementation and operational control of the AIMS | About 40% |
| Domain III: Performance evaluation, audit readiness and continual improvement | About 20% |
| Domain IV: Ethics, transparency and external engagement | About 15% |
Domain II carries the most weight, so risk treatment, impact assessment and change control deserve the largest share of your practice time.
The exam covers ISO/IEC 42001 itself. Frameworks and laws that sit beside it, such as the NIST AI RMF and the EU AI Act, are separate documents. The exam is built on ISO/IEC 42001, so expect those frameworks only where a scenario touches them. Learn how they connect for the job, starting with ISO 42001 vs the NIST AI RMF, but do not spend exam prep time on them.
ISO does not write or run the exam. In ISO’s statement on certification, it says it “does not perform certification or issue certificates.” The certification body sets the exam under its own scheme, which is why question counts and pass marks differ from one scheme to the next. For who issues the credential and what it covers, see the anatomy of an ISO 42001 Lead Implementer credential.
Scenario questions follow from how personnel certification schemes are built. ISO/IEC 17024 is the standard for bodies that certify people. In its published guidance on that standard, the Irish National Accreditation Board (INAB) explains that scheme development includes “a job or practice analysis”. That analysis identifies the tasks for successful performance, the competence each task needs and the examination content that checks that competence. When an exam is built from tasks, the tasks turn into scenarios, and the wrong options are usually things a practitioner might do at the wrong time or in the wrong order.
Lead Implementer exam question-type map: what each scenario is really asking
Most ISO 42001 Lead Implementer scenario questions come down to one decision tied to one record. If you can name the record a situation calls for, you can usually rule out two options straight away. The map below is a preparation model AI Training Skool built from the structure of ISO/IEC 42001. It is a study aid, not the exam blueprint, and it does not predict how many questions of each type you will see.
| The scenario gives you | What it is really testing | Where it sits in ISO/IEC 42001 | The record that settles it |
| A new AI tool, a vendor model or a business unit outside the current boundary | Whether the system is inside the AIMS scope | Clause 4.3 scope; clauses 4.1 and 4.2 on context and interested parties | Scope statement and AI system register |
| An AI tool found in use that nobody approved | Inventory and ownership | Clauses 4 and 8 | AI system register |
| A conflict over who approves an AI use or a policy exception | Leadership accountability and roles | Clauses 5.1 to 5.3 | AI policy and role assignments |
| A new AI use case with unclear risk criteria | How risk is identified, analyzed and evaluated | Clause 6.1.2 | AI risk register |
| A risk that needs a response, or a control someone wants to exclude | Risk treatment and control selection | Clause 6.1.3 and Annex A | Statement of Applicability with justifications |
| A system whose outputs affect people, such as hiring or credit | When and how to assess impact on individuals and groups | Clause 6.1.4, and clause 8.4 in operation | AI system impact assessment |
| A material change, such as a retrained model or a supplier switching versions | What must be reassessed before the change goes live | Clauses 6.3 and 8 | Updated risk and impact assessments, change record |
| Staff who run a system without the right skills or records | Competence and documented information | Clauses 7.2 and 7.5 | Competence records, controlled documents |
| AI objectives with no measure or no monitoring results | Objectives and performance evaluation | Clauses 6.2 and 9.1 | Objectives, monitoring and measurement results |
| An internal auditor auditing their own work, or no audit program | Objectivity and the audit program | Clause 9.2 | Internal audit program and audit report |
| Leadership meeting without the inputs it needs | Management review content | Clause 9.3 | Management review minutes |
| A failed control or a broken requirement | Correction, root cause, corrective action, effectiveness check | Clause 10.2 | Nonconformity and corrective action record |
Source: AI Training Skool analysis of the clause structure of ISO/IEC 42001:2023. Not the exam blueprint.
Three patterns run through the map. First, sequence: risk assessment comes before risk treatment, and treatment produces the Statement of Applicability, so an option that updates the SoA before the risk is assessed is usually wrong. Second, timing: an impact assessment belongs before deployment and again when the system changes, not only at launch. Third, selection: Annex A is a reference set of controls, not a checklist to apply in full. The SoA records each control as applied or excluded, with a justification, so an option that says every Annex A control must be implemented is a common trap.
Corrective action under clause 10.2 means finding the cause of a nonconformity, and it feeds continual improvement under clause 10.1. A question about a repeated nonconformity usually wants the cause fixed, not the symptom.
A worked example of an exam scenario
The supplier model change scenario below was written for this page as an illustration. It is not taken from the exam.
A US lender’s AI management system covers its credit decisioning model, which comes from a third-party vendor. The vendor releases a new version that uses different input data. The product owner wants it live next week. What should the person running the AIMS do first?
A. Add a supplier control to the Statement of Applicability B. Reassess the risks and the impact on applicants for the changed system before it goes live, and update the AI system register C. Schedule an internal audit of the vendor D. Ask top management to approve the go-live date
The best answer is B. A material change to a system that affects people triggers reassessment before deployment. Option A may follow, but only after the risk is understood. Option C checks the arrangement after the fact. Option D asks leadership to decide without the evidence they need.
The habit to build: name the trigger, name the record, then pick the option that produces that record at the right time.
How the Lead Implementer exam is scored and paced
The ISO 42001 Lead Implementer exam pass mark is 70%. On 60 scored questions, that is 42 correct answers, which leaves room for 18 wrong. Aim to clear 42 with room to spare in your practice exams before you book.
The exam is closed book, with no notes, devices or outside help, so you cannot look up a clause mid-exam. The sequence in the question-type map has to be in your head.
Ninety minutes for 60 questions gives you 90 seconds each. Scenario questions take longer to read than recall questions, so a pace of about a minute a question on the first pass leaves time to come back to the ones you flagged.
A workable pacing plan:
- Read the question line before the scenario, so you know what decision you are looking for.
- Answer what you can on the first pass and flag the rest.
- Return to flagged questions with the time left, and check that each answer fits the sequence in the map above.
- Answer every question, unless your exam instructions say wrong answers cost marks.
How online proctoring works, and what to confirm before you book
An online proctored exam is one you take from your own computer while a proctor supervises you remotely through your webcam, microphone and screen. The detailed proctoring rules come with your booking. Check each of these before exam day:
- Which forms of photo ID are accepted, and whether the name must match your registration exactly
- The computer, browser, webcam and connection requirements, and whether there is a system check to run in advance
- Room rules: whether you must be alone, and what can be on your desk or walls
- Whether breaks are allowed and whether the timer stops during them
- What happens if your connection drops partway through
- How and when you receive your result
- How far ahead you can reschedule, and whether rescheduling uses an attempt
What happens if you fail: retakes and the second attempt
A candidate who misses the 70% pass mark on the first attempt at the Lead Implementer exam moves to the second attempt. The AI Training Skool course includes that attempt in its US$795 price. The retake carries no extra exam fee or second exam voucher to buy. You must wait at least 30 days between attempts, and you can resit up to twice within 12 months. A resit beyond the one our course includes carries a discounted re-examination fee.
Treat the gap between attempts as a short, targeted plan:
- Write down what felt uncertain, straight after the exam. Note scenario types, not the questions themselves, and keep to the confidentiality terms you accepted when you started.
- Map those notes to the question-type map. Most people find their misses cluster in two or three rows.
- Rebuild the records for those rows. If impact assessment questions went wrong, redo the impact assessment in the case study workbook from a blank page.
- Sit a full-length practice exam under exam conditions. Rebook when you clear the pass mark with room to spare, not when you scrape it.
- Check your access window. The course comes with 90, 180 or 365 days of access, and attempts must be at least 30 days apart, so book your second attempt inside that window.
If you have not enrolled yet, a retake plan is easier to build with the attempts already paid for. AI Training Skool sells an online ISO 42001 Lead Implementer course with two exam attempts, the exam simulator and full-length practice exams in one US$795 payment. A 48-hour money-back guarantee applies once you start module one. For how retake fees and course costs compare, see ISO 42001 Lead Implementer prices by format.
The last two weeks before the ISO 42001 exam
The final two weeks before the ISO 42001 Lead Implementer exam are for practice questions under exam conditions and fixing your weakest question types, not for new material. If you are further out than that, start with a week-by-week ISO 42001 Lead Implementer study plan, which turns the 32 hours into weeks at your study pace.
| Days before the exam | Focus | What you should have at the end |
| 14 to 12 | Full-length practice exam, timed | A score and a list of misses sorted by question type |
| 11 to 8 | Your two weakest question types | One rebuilt record for each, such as SoA entries with justifications |
| 7 to 5 | Second full-length practice exam | Every wrong or guessed answer explained in one line |
| 4 to 3 | Sequence drills | You can recite the order: risk assessment, treatment, SoA; impact assessment before deployment; correction, root cause, corrective action, effectiveness check |
| 2 | Logistics | System check passed, ID ready, room set up |
| 1 | Rest | No new material |
Source: AI Training Skool preparation guidance.
For extra items in the scenario style, work through scenario practice questions mapped to ISO 42001 clauses and note the clause each answer depends on.
ISO 42001 exam-day checklist
An online proctored Lead Implementer exam can be stopped for a setup problem, so check these seven items before you log in.
- Photo ID that matches your registration name
- System check completed on the same computer and network you will use
- Desk clear of notes, books and devices, since the exam is closed book
- Phone out of reach, notifications off on the computer
- Water, if the rules allow it
- Booking confirmation and the exam support contact written down off-screen, in case the connection fails
- A pacing target: question 30 by about the 45-minute mark
What Lead Implementer graduates say about the effort
Graduates of the ISO/IEC 42001 Lead Implementer route describe it as serious work rather than a formality. Temitope Bolaji-Jegede, a Certified Lead Implementer, wrote: “Over the last 50 days, I immersed myself in the ISO/IEC 42001 Lead Implementer programme”. Dalia Ali, PMP, said: “Squeezing time between work, parenting and commitments was not easy.” Estefania Borengue, an AI Governance Lead, wrote that the certification is “one of the most demanding and rewarding I have pursued.”
None of them gives a study time that applies to you. If you are still checking whether you can sit the exam at all, start with the eligibility rule for the ISO 42001 Lead Implementer exam.
Frequently Asked Questions
How many questions are on the ISO 42001 Lead Implementer exam?
The ISO/IEC 42001 Lead Implementer exam on the route taught by AI Training Skool has 60 scenario-based, multiple-choice questions, taken online under a proctor. Other certification bodies run their own schemes, so question counts differ between schemes. Check the count for the scheme named on the certificate you plan to hold.
What is the passing score for the ISO 42001 Lead Implementer exam?
The pass mark is 70%. On the 60 scored questions, that is 42 correct answers. Aim to clear that number with room to spare in practice exams before you book.
How long is the ISO 42001 Lead Implementer exam?
The exam runs 90 minutes for 60 questions. That gives you 90 seconds per question.
Is the ISO 42001 Lead Implementer exam open book?
No. The exam is closed book: you may not have the standard, notes, the course workbook, devices or any outside help. Prepare so the clause sequence and the records each clause produces are in your head.
Can I retake the ISO 42001 Lead Implementer exam if I fail?
Yes. The AI Training Skool course includes two attempts at the proctored exam, so your first retake costs nothing extra. You must wait at least 30 days between attempts, and you can resit up to twice within 12 months. A resit beyond the one included carries a discounted re-examination fee.
How much does the ISO 42001 Lead Implementer exam cost?
With the AI Training Skool course, the exam is included in a single US$795 payment, along with 32 hours of training and a second attempt. The course carries a 48-hour money-back guarantee once you start module one. If you need a further resit after that, it carries a discounted re-examination fee.
Do I need to memorize clause numbers for the exam?
Knowing where a requirement sits helps you check your answers, but scenario questions ask what to do and which record to produce; they do not ask you to recite numbers. Learn the sequence of clauses 4 to 10 and the records each one creates, such as the risk register, the Statement of Applicability and the AI system impact assessment.
