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Certification Guide

The PECB Certified ISO 37301 Lead Auditor
Certification Explained.

What you need to know about PECB's compliance management system audit credential as of 2026: the seven exam domains and their weights, the open-book exam, the four credential levels and the audit hours behind them, fees, CPD rules, and how it compares to ISO/IEC 27001 Lead Auditor, ISO 37001 Lead Auditor and CISA. A reference guide for anyone weighing the credential or trying to understand what it covers.

Quick Facts
Issuer: PECB
Exam: 80 questions, 3 hours
Open Book, 70% to Pass
Lead Auditor: 5 yrs + 300 audit hrs
Covers ISO 37301:2021
7 Exam Domains 80 Exam Questions 3-HOUR Open-Book Exam 300 HRS Audit Activity ISO 37301:2021 Standard
UPDATED 2026
Overview

What Is the PECB Certified ISO 37301 Lead Auditor?

It is PECB's credential for auditing a compliance management system (CMS) against ISO 37301:2021, the ISO standard that turned compliance management from guidance into requirements an organization can be certified against.

A CMS is the set of policies, processes and controls an organization uses to find its compliance obligations and meet them. Those obligations include laws, regulations, permits and licenses, plus the codes of conduct and commitments it chooses to adopt. The Lead Auditor credential shows you can plan that audit, lead a team through it, gather evidence, write nonconformity reports and follow up, using the guidelines in ISO 19011 and the certification audit process in ISO/IEC 17021-1.

The exam is only the first step. Which of PECB's four auditor levels you hold (Provisional Auditor, Auditor, Lead Auditor or Senior Lead Auditor) depends on the experience and audit hours you can document. The scheme runs in compliance with ISO/IEC 17024 and falls within PECB's IAS accreditation. The credential is issued and maintained by PECB, the Professional Evaluation and Certification Board.

2021 Standard Published
7 Exam Domains
300 Audit Hours
The Exam Domains

Seven Competency Domains

01

Principles and Concepts of a CMS

Scope, related standards, ethics and tone at the top. 13.75% of the exam.

02

CMS Requirements

Clauses 4 to 10 of ISO 37301. 12.5% of the exam.

03

Audit Concepts and Principles

ISO 19011 principles, materiality and audit risk. 20% of the exam.

04

Preparing the Audit

Scope, feasibility, the audit plan and test plans. 12.5% of the exam.

05

Conducting the Audit

Stage 1 and stage 2, evidence and sampling. The heaviest at 25%.

06

Closing the Audit

Findings, nonconformities, the report and follow-up. 7.5% of the exam.

07

Managing an Audit Program

PDCA, audit records and auditor performance. 8.75% of the exam.

Why It Matters

What Makes ISO 37301 Lead Auditor Different?

Four things that separate this credential from a general audit certification.

Compliance You Can Certify

ISO 19600, published in 2014, was guidance only. An organization could follow it but could not be certified against it. ISO 37301 replaced it in April 2021 with requirements a third party can audit. Every certification audit against it needs someone who can test those requirements clause by clause, and that someone is the lead auditor.

An Open-Book Exam That Tests Judgment

You can bring a hard copy of ISO 37301, the course materials and your own notes. The book will not answer the questions for you, though. 49 of the 80 are written to measure evaluation, and scenario-based items come in groups of five built around one case.

Your Audit Hours Set Your Level

Passing does not make you a Lead Auditor by itself. PECB checks your work history, your logged audit hours and two references before it assigns a level. Our guide to how PECB exams and credentials work walks through the tiers.

Accredited Under ISO/IEC 17024

PECB's candidate handbook describes the ISO 37301 Lead Auditor scheme as compliant with ISO/IEC 17024, the international standard for bodies that certify people. The International Accreditation Service lists ISO 37301 Lead Auditor in PECB's accredited scope under certificate PCB-111.

PECB doesn't claim a DoD 8140 listing for this credential. If a federal audit role requires one, CISA is approved at the Advanced level. PECB lists the accreditations it holds on its accreditations page.

IAS PCB-111 3-Year Validity 7 Exam Languages
Fast Facts

What Are the Key Facts About ISO 37301 Lead Auditor?

The credential, the exam and what it takes to keep it. Fees are PECB list prices in US dollars as of October 2026.

01

The Certification

Certification Name
PECB Certified ISO 37301 Lead Auditor
Issued By
PECB
Standard Covered
ISO 37301:2021 (compliance management)
Course Prerequisite
Grasp of ISO 37301 (or ISO 19600) and audit principles
Lead Auditor Experience
5 yrs, 2 in compliance management
Audit Hours
300 hours of audit activity
Other Levels
Provisional Auditor, Auditor, Senior Lead Auditor
Application
2 references, Code of Ethics, within 12 months
Accreditation
IAS, under ISO/IEC 17024
DoD 8140 Status
Not claimed by PECB
02

Exam & Maintenance

Exam Format
Multiple choice, 3 options each
Number of Items
80 questions
Exam Duration
3 hours
Book Policy
Open book
Passing Score
70%
Delivery
Online (remote invigilator) or paper
Exam Cost
$1,000 without a course
Application Fee
$500 (in partner course fees)
Validity
3 years
CPD Requirement
90 hours per 3-year cycle
Maintenance Fee
$390 per 3-year cycle
Going Deeper

What Comes After ISO 37301 Lead Auditor?

ISO 37301 Lead Auditor proves you can audit a compliance program. From there, the natural moves are the implementation side of the same standard, a second compliance standard, or IT audit.

ISO 37301 Lead Implementer (Build)

PECB's implementation credential on the same standard. Where the auditor tests a CMS, the implementer plans and builds one and gets it ready for certification. Same exam format (80 questions, three hours, open book), with 300 hours of CMS project activity for the Lead level.

ISO 37001 Lead Auditor (Anti-Bribery)

PECB's audit credential for anti-bribery management systems, a narrower standard than ISO 37301 and its full range of compliance obligations. It follows the same seven-domain audit structure and asks for two years in anti-bribery management at the Lead level.

CISA (IT Audit)

ISACA's Certified Information Systems Auditor moves you from compliance obligations to information systems and IT controls. It suits auditors whose scope keeps drifting into technology, and it requires five years of IS audit, control, or security experience.

Certification Roadmap

Where Does ISO 37301 Lead Auditor Fit in Your Career?

It builds on compliance or audit experience and a working knowledge of the standard. From there it leads into implementation, other ISO management system audits, and IT audit as your work gets more senior.

STAGE 01

Foundation

Build the baseline

Compliance Experience
Legal, regulatory or compliance work
ISO 37301 Foundation
PECB · 40 questions, 1 hour, closed book
Audit Principles
ISO 19011 · Expected before the course
STAGE 02 You Are Here

Compliance Audit

The core credential

PRIMARY
ISO 37301 Lead Auditor
PECB · Certified ISO 37301 Lead Auditor
Provisional to Senior Lead
PECB · Level set by experience and audit hours
STAGE 03

Specialize

Pick your path

Implementation
ISO 37301 LI
Other ISO Audits
ISO 27001 LA
ISO 37001 LA
IT Audit & Risk
Decision Point

Is ISO 37301 Lead Auditor Right For You?

Two questions to answer before you commit: can you reach the Lead Auditor level, and should you pursue this credential specifically. Here's a straight answer to both.

Q1

Do You Qualify for ISO 37301 Lead Auditor?

Path A

5+ Years, 2 in Compliance, 300 Audit Hours

You can certify in full.

You have five years of professional experience, two of them in compliance management, and at least 300 hours of audit activity such as planning audits, leading an audit team, conducting on-site audits and drafting nonconformity reports. Pass the exam, sign the PECB Code of Ethics, name two professional references, and you can hold the full Lead Auditor credential.

Path B

Not at the Lead Auditor Bar Yet

You can still pass now.

The exam is the same for every level. With no experience you can apply as Provisional Auditor, and with two years (one in compliance management) plus 200 audit hours you qualify as Auditor. Upgrade online once your hours catch up, for a $100 fee. Apply within 12 months of finishing an instructor-led course, or the case closes and reopening it costs extra.

Q2

Is ISO 37301 Lead Auditor the Right Certification for Your Goals?

ISO 37301 Lead Auditor Is a Strong Fit If...

  • Your work involves checking whether an organization meets its legal, regulatory and contractual obligations
  • You audit compliance programs, or want to, either for a certification body or as an internal auditor
  • You are a compliance officer or manager getting your organization ready for an ISO 37301 certification audit
  • You already audit another ISO management system and want to add compliance management to your scope
  • You prefer an open-book exam that tests audit judgment more than memorization
  • Clients or your employer have asked for ISO 37301 certification or a gap assessment against it

Consider Alternatives If...

  • You will build and run the compliance program rather than audit it, where ISO 37301 Lead Implementer is the closer fit
  • Your audits focus on information systems and IT controls, where CISA is the established credential
  • Your compliance work is limited to anti-bribery, where ISO 37001 Lead Auditor covers that standard directly
  • You manage a privacy program specifically, where CIPM is purpose built
  • You need a DoD 8140 approved credential for a federal role, which PECB does not claim for this one
  • You are new to both compliance and audit, and a foundation-level course would make the Lead Auditor material easier to absorb
Career Paths

What Jobs Can You Get With ISO 37301 Lead Auditor?

The credential maps to compliance audit, assurance and advisory work, on both sides of a certification audit. These are the roles where an ISO 37301 audit background gets used every week.

Audit

Compliance Auditor

Plans and leads audits of a compliance management system against ISO 37301, testing whether obligations are identified, assessed and actually met. The job this credential is named for.

Third-Party Audit

Certification Body Auditor

Audits client organizations on behalf of a certification body, working to ISO/IEC 17021-1. PECB says the Lead Auditor course can potentially qualify you to audit for conformity assessment bodies.

Assurance

Internal Auditor

Runs the internal audits ISO 37301 requires under clause 9 and reports to management review on how the compliance program is performing, not just whether the paperwork exists.

Compliance

Compliance Manager

Owns the compliance management system day to day. Auditor training tells the person facing a certification audit exactly what the other side of the table will test.

Leadership

Ethics and Compliance Officer

Leads the compliance function and reports to the governing body. Culture, speak-up channels and investigations all fall under this role, and all of them get examined in a CMS audit.

Advisory

Compliance Consultant

Runs gap assessments and readiness reviews for organizations heading toward ISO 37301 certification, then helps them through stage 1 and stage 2 of the certification audit.

Comparison

How Does ISO 37301 Lead Auditor Compare to ISO 27001, ISO 37001 and CISA?

Three PECB lead auditor credentials share one exam design and differ in the standard you audit. CISA comes at audit from the IT side. Here's how they line up.

  ISO 37301 LA ISO/IEC 27001 LA ISO 37001 LA CISA
Issuer PECB PECB PECB ISACA
Focus Compliance management system audit Information security management system audit Anti-bribery management system audit Information systems audit
Standard ISO 37301:2021 ISO/IEC 27001:2022 ISO 37001:2025 ISACA outline (Aug 2024)
Exam Format 80 questions, 3 hrs, open book 80 questions, 3 hrs, open book 80 questions, 3 hrs, open book 150 questions, 4 hours
Experience 5 yrs (2 in compliance), 300 audit hrs 5 yrs (2 in infosec mgmt), 300 audit hrs 5 yrs (2 in anti-bribery), 300 audit hrs 5 yrs in IS audit, control, or security
Passing Score 70% 70% 70% 450 / 800
Renewal 90 CPD hours over 3 years 90 CPD hours over 3 years 90 CPD hours over 3 years 120 CPEs over 3 years
Accreditation IAS (ISO/IEC 17024) IAS and UKAS (ISO/IEC 17024) IAS (ISO/IEC 17024) ANAB (ISO/IEC 17024)
Best For Compliance auditors and officers ISMS and security auditors Anti-corruption and ethics auditors IT auditors and assurance pros

PECB figures are for the Lead Auditor level of each scheme. Fees and requirements change, so check PECB and ISACA before you register. Many auditors eventually hold more than one of these credentials.

Weighing ISO 37301 Lead Auditor against another certification? Compare any two head to head

Certification Matchups: the published facts, strengths and weak spots of 33 certifications, side by side.

Ready to Get Certified?

Train for ISO 37301 Lead Auditor with Training Camp.

Our PECB authorized ISO 37301 Lead Auditor boot camp runs four days, live and instructor-led, in person or online. Official PECB courseware, the certification exam, the application fee, one free retake within 12 months and a 31 CPD credit attestation are all in the course price.

View Boot Camp
Keep Reading

ISO 37301 Lead Auditor Articles and Guides.

How PECB credentials work, GRC career choices, the auditor versus implementer decision, and where compliance audit is heading.

Curriculum

Inside the Seven Exam Domains.

PECB splits the ISO 37301 Lead Auditor exam into seven competency domains and publishes how many of the 80 questions come from each. Click any domain for what it covers.

Domains 01-03

Concepts and Requirements
01 Fundamental Principles and Concepts of a Compliance Management System 13.75%

What ISO 37301 covers and where it applies, how it connects to ISO 19600, ISO 31000, ISO 31022, ISO 19011 and ISO 26000, the role of ethics and codes of conduct, tone at the top and tone at the middle, and the usual barriers to compliance. 11 of the 80 questions.

02 Compliance Management System Requirements 12.5%

The requirements in clauses 4 to 10: context, compliance obligations and compliance risk assessment, leadership and the compliance policy, objectives, resources, operational controls, raising concerns and investigations, performance evaluation, and corrective action. 10 questions.

03 Fundamental Audit Concepts and Principles 20%

The ISO 19011 audit principles, first, second and third party audits, the PECB Code of Ethics, materiality, reasonable assurance, and inherent, control and detection risk. 16 questions, all written to test evaluation.

Domains 04-07

Preparing to Program Management
04 Preparing an ISO 37301 Audit 12.5%

Audit objectives, scope and criteria, the feasibility study, the roles of the team leader, team members and technical experts, first contact with the auditee, types of audit evidence, the audit plan, working papers and audit test plans. 10 questions.

05 Conducting an ISO 37301 Audit 25%

The heaviest domain. The opening meeting, stage 1 and stage 2 audits, guides and observers, interviews, documented information review, observation, sampling, technical verification, and corroborating what you find. 20 questions.

06 Closing an ISO 37301 Audit 7.5%

Drafting findings and conclusions, conformity versus minor and major nonconformity, the benefit of the doubt, quality review of working documents, the closing meeting, the audit report, action plan review, follow-up and surveillance audits. 6 questions.

07 Managing an ISO 37301 Audit Program 8.75%

Applying the PDCA cycle to an audit program, audit resources and records, combined audits, monitoring the performance of each auditor, and the personal attributes expected of a professional auditor. 7 questions.

Domains and weights reflect the PECB ISO 37301 Lead Auditor Candidate Handbook, version 1.5 (June 2026). Each weight is the domain's share of the 80 exam questions.

Frequently Asked Questions

Common Questions About ISO 37301 Lead Auditor.

The questions candidates ask most often when researching the PECB Certified ISO 37301 Lead Auditor certification.

What is the PECB ISO 37301 Lead Auditor certification?

It is PECB's credential for auditing a compliance management system against ISO 37301:2021. Holders have shown they can plan, lead and report a CMS audit using the audit principles in ISO 19011. PECB designed it for compliance officers, auditors and consultants who assess whether an organization actually meets its obligations.

Who should get the ISO 37301 Lead Auditor certification?

PECB aims it at auditors who want to perform and lead CMS audits, managers and consultants who want to master the audit process, people responsible for keeping an organization in conformity with ISO 37301, technical experts preparing for a CMS audit, and compliance officers. If you will build the program rather than audit it, ISO 37301 Lead Implementer is the closer match.

How much does the ISO 37301 Lead Auditor exam cost in 2026?

As of October 2026, PECB lists the Lead exam at $1,000 if you take it without a course, plus a $500 certification application fee. When you train with a PECB partner, the course fee covers the first exam attempt, one free retake, the application fee and the first year of the annual maintenance fee.

What is the ISO 37301 Lead Auditor exam like?

The exam has 80 multiple-choice questions, each with three options, and you get three hours. It is open book, so you can use a hard copy of ISO 37301, the course materials and your own notes. Some questions stand alone and others come in sets tied to a scenario. You need 70 percent to pass, and online results arrive instantly.

What experience do you need for ISO 37301 Lead Auditor?

The full Lead Auditor credential requires five years of professional experience, two of them in compliance management, plus at least 300 hours of audit activities. You also sign the PECB Code of Ethics and provide two professional references. Senior Lead Auditor asks for ten years, seven in compliance management, and 1,000 audit hours.

Can you take the ISO 37301 Lead Auditor exam without audit experience?

Yes. Everyone sits the same exam, and passing makes you eligible to apply. With no experience you can hold PECB Certified ISO 37301 Provisional Auditor. With two years of experience, one in compliance management, and 200 audit hours you qualify as Auditor. You can upgrade later, for a $100 fee, once your experience and hours meet the Lead Auditor bar.

What are the seven ISO 37301 Lead Auditor exam domains?

The domains are fundamental principles and concepts of a CMS, CMS requirements, fundamental audit concepts and principles, preparing an ISO 37301 audit, conducting an ISO 37301 audit, closing an ISO 37301 audit, and managing an ISO 37301 audit program. Conducting the audit is the heaviest, at 20 of the 80 questions.

How do I maintain my ISO 37301 Lead Auditor certification?

PECB certifications are valid for three years. To renew, a Lead Auditor reports 90 hours of continuing professional development (CPD) across the cycle, such as audit work, training or conferences, and pays the annual maintenance fee, which PECB lists at $390 per three-year cycle. Missing CPD or fees triggers a 12-month suspension, and PECB revokes the credential if you don't fix it in that window.

Is the ISO 37301 Lead Auditor certification accredited?

Yes. PECB runs the scheme in compliance with ISO/IEC 17024, and ISO 37301 Lead Auditor is listed in the scope of PECB's accreditation from the International Accreditation Service (IAS). PECB does not claim a DoD 8140 listing for this credential.

What is the difference between ISO 37301 Lead Auditor, ISO 37001 Lead Auditor, and CISA?

ISO 37301 Lead Auditor audits a compliance management system that covers all of an organization's obligations. ISO 37001 Lead Auditor, also from PECB, audits an anti-bribery management system with the same exam format. CISA from ISACA is an IT audit credential with a 150-question, four-hour exam and a five-year experience requirement.

Which edition of ISO 37301 does the exam cover?

ISO 37301:2021, the first and so far only edition, published in April 2021 to replace the ISO 19600:2014 guidance. ISO reviewed and confirmed it in 2026, and a 2024 amendment added climate change wording shared across ISO management system standards. No newer edition exists as of October 2026.

Is ISO 37301 Lead Auditor worth it in 2026?

It is worth it if your work involves auditing compliance programs or preparing organizations for ISO 37301 certification, since it is the credential built around that standard. The open-book exam rewards audit judgment, and the tiered levels let you start before you have the hours. It is less useful if your audits center on IT controls, where CISA is the closer fit.

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