How to collaborate with ISO 42001 auditors

‍An ISO/IEC 42001 audit reviews if an organization's AI management system (AIMS) is aligned with the standard’s governance requirements, particularly if its AI systems are built, operated, and maintained responsibly. Aspects like organized evidence, verifiable ownership, and clear risk management processes are also critical in shaping audit outcomes.

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Since ISO 42001 auditors are independent of your organization, the success of the audit depends on how well you prepare and collaborate with them. In this guide to working with ISO 42001 auditors, we’ll approach key topics like:

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• What working with ISO auditors looks like in practice
• How to prepare for the entire audit lifecycle
• Best practices for efficient auditor communications
• How to find a compatible auditor

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Who are ISO 42001 auditors?

ISO 42001 auditors are independent, third-party assessors who conduct certification audits to evaluate if the in-scope AIMS holds up against the standard’s requirements. These auditors are always qualified through and work on behalf of an accredited certification body (CB), and are responsible for determining whether an organization can be granted the certification.

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Mind that certification bodies and accreditation bodies are two different entities—clarified below:

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{{cta_withimage7="/cta-modules"}} | ISO 42001 checklist

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Competence requirements for ISO 42001 auditors

ISO 42001 auditors must meet strict competence requirements defined by international standards, notably:

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1. ISO/IEC 17021-1 defines general requirements for auditor competence and impartiality during the certification processes. It requires auditors to uphold principles such as confidentiality, responsibility, and professional integrity throughout the audit.
2. ISO/IEC 42006 introduces additional competence requirements for auditors of AI management systems. It emphasizes understanding AI risks, lifecycle considerations, and governance mechanisms.

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Besides these mandatory requirements, auditors are typically expected to apply guidelines on auditing management systems under ISO 19011—a key standard that offers guidance on audit principles and audit program management practices. 

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While ISO 42001 doesn’t specify any professional experience, authorized ISO auditors often have a background in technical fields, such as:

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• AI governance and risk management
• Information security and data governance
• AI development or machine learning (ML) engineering
• Compliance auditing

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Auditors evaluating AIMS also have specialized competency in the niche, including testing data quality and controls, AI governance structures, AI risk identification and treatment, AI-specific accountability mechanisms, and lifecycle management of AI systems.

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What is the task scope of ISO 42001 auditors?

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The broad task scope of ISO 42001 auditors is to assess how the organization has designed its AI governance practices, and how well they’re implemented in day-to-day operations. From a granular perspective, this includes reviewing evidence objectively, assessing controls for presence as well as effectiveness, assessing remediation activities, and reporting.

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To conduct a thorough ISO 42001 assessment, an auditor would typically:

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• Read the Statement of Applicability (SoA) to understand the controls setup
• Examine governance policies, procedures, and stakeholder training documentation
• Evaluate technical evidence such as:
  
  • Access logs
  • Risk registers
  • Version control records
  • Management reviews
  • Gap remediation records
• Interview relevant stakeholders, including AI developers and engineers, risk owners, and operational teams
• Verify if implemented processes align with what’s documented

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The intent is to report an objective, evidence-based evaluation that supports certification and builds trust in the organization’s AI governance. As a part of this evaluation, the auditor will also report the strengths and nonconformities of the AIMS and operations, as well as observations or opportunities for improvement, where applicable.

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What does working with ISO 42001 auditors entail?‍

Working with ISO 42001 auditors entails engaging in a structured, multi-stage evaluation of your AIMS. While the exact flow depends on your CB, you can expect the following six phases:

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1. Audit planning: Defining audit scope, objectives, and timelines
2. Documentation review: The auditor reviews the AIMS artifacts to understand how it’s designed and implemented
3. Control validation: The auditor validates control efficacy across teams and systems
4. Stakeholder interviews: They talk to your key stakeholders in IT, security, and legal to confirm execution
5. Reporting: The auditor presents their findings in a report
6. Corrective actions: You implement the corrective actions, if any, to receive certification

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Your relationship with your auditors should be collaborative rather than adversarial. Their job isn’t to penalize organizations but to verify conformance and support responsible AI risk management.

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While it’s normal for organizations to be worried about follow-ups, typically, it’s your level of preparation that determines how disruptive the audit will be for your team. Organizations with well-organized, referenceable evidence are able to promptly respond to auditor requests. Integrating audits into regular workflows also contributes to a smoother, more productive experience for your team.

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“The key to successfully collaborating with ISO 42001 auditors is maintaining clear and effective communication, providing evidence proactively, and maintaining consistency between your documented processes and real practices.

A platform like Vanta greatly streamlines this by organizing evidence, centralizing controls, and reducing the need for manual follow-ups during the ISO 42001 audit. The platform makes the process smoother for both the organization and the auditor.”

Ethan Heller

GRC Subject Matter Expert, Vanta

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LinkedIn

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How to prepare for working with an ISO 42001 auditor

You can break down your ISO 42001 audit preparation work into three stages:

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1. Before the audit
2. During the audit
3. After the audit

{{cta_withimage7="/cta-modules"}} | ISO 42001 checklist

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1. Before the audit

Thorough preparation can shorten audit timelines and minimize the risk of unexpected findings. At this stage, your organization has its AIMS, documents, and relevant controls. You can improve your preparation by filling potential gaps in these areas:

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• Securing stakeholder buy-in: Ensure that leadership, AIMS teams, and risk owners understand their responsibilities during the audit. They should also be introduced to the interview process, if expected, and prepared with expected subject-matter topics and to-the-point responses.
• Reviewing and updating documentation: Revise your current policies, procedures, and records to keep them current. Pay special attention to frequently updated areas, such as resolved tickets.
• Centralizing evidence access: Instead of relying on scattered worksheets and screenshots, centralize your evidence in a central repository like Vanta to expedite review processes and reduce back-and-forth.
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2. During the audit

We summarized the interactions you can expect during the audit below:

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To keep the audit cycle smooth:

1. Keep relevant personnel available during the audit window to minimize delays in responses
2. Provide auditors with a structured, labeled evidence and access privileges
3. Have a dedicated point of contact (POC) for consistent communication with the auditor

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3. After the audit

Once the audit concludes, review the auditor’s findings and take appropriate actions, which can be:

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• Addressing nonconformities with a corrective action plan
• Implementing and tracking corrective actions
• Collecting remediation evidence
• Submitting the evidence for reverification
• Waiting for the final certification decision

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This post-audit communication with auditors is critical. Auditors expect time follow-ups as you implement remediation measures. Appearing defensive, unprepared, or unwilling to share complete evidence can damage your relationship with ISO 42001 auditors, trigger doubts about your team’s consistency and transparency, and delay the certification decision.

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Tips to communicate with ISO 42001 auditors

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Be clear and consistent when providing documentation, evidence, or explanations to your auditors. To get a better sense of dos and don’ts, follow this table:

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For communication on nonconformities, follow these guidelines:

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1. Acknowledge the findings
2. Avoid defensiveness or speculative claims
3. Provide factual clarification where necessary
4. Ask for clarifications about next steps or evidence expectations

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Using leading automation and compliance audit tools like Vanta can improve your collaboration experience with auditors. You get help with centralized evidence management. You can store logs, policies, and procedures in a single system that auditors can access and review quickly.

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Automation also reduces human error during preparation, as you get systems that automatically capture monitoring, testing, and incident logs. It can also present gaps and inconsistencies in a clean dashboard for timely remediation.

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{{cta_withimage7="/cta-modules"}} | ISO 42001 checklist

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Simplify ISO 42001 audit preparation and readiness with Vanta

Vanta is the #1 agentic trust management platform that brings together centralized visibility into compliance, automated risk management workflows, and continuous monitoring. With Vanta’s ISO 42001 compliance software organizations operationalize the standard’s requirements by leveraging automation and prescriptive certification guidance.

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With Vanta, you can simplify your collaboration with auditors by using a unified dashboard that provides real-time visibility into controls, evidence, and risk management. Key features that help include:

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• Automated evidence collection through integrations with over 400 major platforms
• 100+ prebuilt resources, including policies, controls, and document templates
• Centralized ISO 42001 requirements tracking
• Controls mapped to ISO 42001 requirements
• AI-specific risk scenarios
• Adaptive scoping for your AI use cases
• Ongoing monitoring across key configurations

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Vanta is particularly scale-friendly, helping teams expand to other AI-specific or cybersecurity standards and regulations through reused evidence and custom frameworks.

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Book your custom demo to request a tailored Vanta walkthrough for your team.

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FAQs

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Who needs an ISO 42001 audit?

While not mandatory, organizations that develop, deploy, or rely on AI systems and want to demonstrate responsible AI governance typically pursue an ISO 42001 audit. This includes companies building AI solutions, enterprises integrating AI into operations, and vendors providing AI-enabled services.

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How long does an ISO 42001 audit take?

Timelines vary depending on scope, evidence readiness, and auditor availability. Usually, it can last anywhere from 3 to 12 weeks.

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What documentation do auditors expect?

Auditors typically expect the following documentation during an ISO 42001 audit:

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• AI policy and defined roles
• AI risk/impact assessments
• Data governance and provenance records
• AI lifecycle procedures (e.g., design, training, validation, deployment, and monitoring)
• Incident and complaints handling records
• Supplier/third-party AI governance
• Training and awareness records
• KPIs and monitoring reports
• Improvement evidence (e.g., management reviews and corrective actions)

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How do I find a compatible auditor for ISO 42001?

To find an auditor, you can explore several sources, including:

• Accredited certification bodies, like ANAB or PECB
• Training organizations, like DNV, BSI Group
• Vanta partner network

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If you’re choosing between auditors, focus on organization-specific compatibility, such as:

• Experience in AI governance and lifecycle auditing
• Familiarity with ISO 42001 requirements
• Industry-specific knowledge (e.g., SaaS or healthcare)