Practical Resources for Audit Professionals

Guides, overviews, and professional development resources to support your audit career — whether you are pursuing ACI certification or maintaining your credential through CPD.

Guide · ISO 17024

What Is ISO/IEC 17024 and Why Does It Matter for Auditors?

ISO/IEC 17024 is the international standard for personnel certification bodies. This guide explains what it requires, how it protects the value of your certification, and what to look for when choosing a certification body.

Standard

ISO/IEC
17024

Audit Fundamentals

The Five Phases of an Effective Management System Audit

A step-by-step walkthrough of planning, document review, opening meeting, field audit, and closing — with practical tips for each phase.

8 min read Read

ISO 9001

Understanding Clause 9.2: Internal Audit Requirements Under ISO 9001:2015

Clause 9.2 sets the requirements for internal audit programmes. This article explains what auditors must verify and common non-conformances found during third-party audits.

6 min read Read

Career Development

From Internal Auditor to Lead Auditor: What Changes and What to Prepare For

Moving from conducting audits under supervision to leading an audit team is a significant step. This guide covers the competence gaps, training requirements, and mindset shift involved.

7 min read Read

ISO 27001

Auditing Information Security Controls: A Practical Checklist for ISO 27001 Auditors

Key controls to test, evidence to request, and common gaps found in ISO 27001 audits — organised by Annex A control domain.

10 min read Read

CPD

Building a CPD Record That Satisfies ACI Recertification Requirements

What counts as CPD, how to record it, and how to demonstrate continuous development in your specialist scheme — with examples of accepted activities.

5 min read Read

For Employers

How to Verify an Auditor's Certification Before Engagement

A practical guide for procurement teams, HR managers, and quality directors on how to check certification status, what to look for, and what questions to ask.

4 min read Read

Types of CPD Recognised by ACI

ACI recognises a broad range of CPD activities. Use these to maintain your certification and develop your audit expertise.

Training Courses

Courses related to your scheme, audit methodology, or management system standards — delivered by ATPs or other recognised providers.

Webinars & Conferences

Industry events, standards body webinars, and professional conferences relevant to auditing or your certification scheme.

Writing & Research

Publishing articles, contributing to standard development, or conducting original research in your professional field.

Mentoring & Peer Review

Mentoring junior auditors, participating in peer review panels, or conducting joint audits to develop and share knowledge.