Japan · Certification
ISO/IEC 42001 certification in Japan
Achieve ISO 42001 certification in Japan with Sterling: 8,100+ client engagements in 60+ countries, 20+ years.
- Accredited certification
- Tokyo office team
- Effivity software included
- Academy training included
Who asks for ISO 42001 in Japan
Clients include
ISO 42001 certification in Japan at a glance
One Japanese instrument bears on ISO/IEC 42001. It does not name the standard. So why do buyers in Japan keep asking for the certificate?
ISMS-AC's register lists accredited AIMS certification bodies, the first of them accredited on 14 January 2026, so accredited ISO/IEC 42001 certification is now available within Japan's own accreditation system. The policy backdrop is the AI Act, promulgated on 4 June 2025 and fully in force from 1 September 2025, which aims to promote AI research, development and use while addressing the risks it brings; it does not name ISO/IEC 42001 or require certification. For developers, SaaS providers and organisations deploying AI on personal data, the standard offers a way to show customers how AI risk, impact assessment, data governance and human oversight are managed, and the APPI still governs any personal data used. Organisations that already hold ISO/IEC 27001 can extend their management system rather than start again. Sterling's Tokyo office builds the AI management system, with Effivity and Sterling Academy included in the engagement.
Who needs ISO 42001 in Japan, and what happens without it
In Japan the question rarely comes from a law. It comes from the buyer, the regulator or the partner that wants proof before it signs. These are the organisations that get asked.
- Developers and providers of AI systemsThe AI Act promotes AI innovation while addressing risks.
- Organisations using AI on personal dataAPPI security and third-party provision duties apply to AI processing.
- IT and SaaS providers with ISO/IEC 27001ISMS-AC operates AIMS accreditation alongside ISMS.
Not sure which of these applies to you?Answer a short set of questions and your readiness report arrives by e-mail.
Take the ISO/IEC 42001 readiness checkISO 42001 requirements in Japan
Strip away the vocabulary and ISO/IEC 42001 requires a company to prove six things about how it governs the AI it builds or uses.
In Japan these six sit alongside the local laws and regulations listed under drivers below; one system can evidence both. The detail is on the global hub: ISO/IEC 42001 explained →
How to get ISO 42001 certified in Japan
One team from the Tokyo office carries the work from scoping to certificate. Nationwide from the Tokyo office, on-site where the scope requires; remote delivery for distributed teams.
- Discovery call and scopeEntities, locations, regulators and target date, agreed before any proposal.
- Gap assessment against ISO/IEC 42001 and the Japanese requirements that apply to youControls you already run for your regulators and customers are reused, not rebuilt.
- Your system built with your team in EffivityRisks, controls, evidence, incidents and reviews in one live system the auditor can see.
- Internal audit, management review and corrective actionsYour internal auditors trained by Sterling; the evidence proven before the certification body arrives.
- Certification body stage 1 and stage 2, then surveillanceAn accredited body audits and decides. Sterling supports the audits and the three-year cycle.
- End to end, from one team
- Effivity ISO & GRC software
- Preferential Sterling Academy access, with complimentary awareness training for your people
- Internal auditor training for your audit team, as applicable to your standard
- Vulnerability assessment on ISMS engagements
The Sterling Promise: 100% on-time completion, 100% success, 8,100+ client engagements.Sterling does not certify. Certification decisions stay with independent bodies.
How long does ISO 42001 certification take in Japan?
There is no standard duration: it depends on your scope and on how much of the system already runs. In Japan these are the factors that set the timeline.
- Number of AI systems and use cases in scope
- AI impact assessment and risk treatment maturity
- Integration with an existing ISMS
- Certification body availability for a new scheme
Sterling agrees a dated plan with you on the discovery call, once the scope is known.
How much does ISO 42001 certification cost in Japan?
The cost has two parts: the consulting work to build and prove the system, and the certification body’s audit fees, which are quoted separately. In Japan these factors move both.
- Number and complexity of AI systems
- Certification body audit fees quoted separately from consulting
- Data governance and model documentation work
Sterling gives one customised, all-inclusive proposal after the discovery call, never before the scope is agreed.
ISO 42001 consultants and certification bodies in Japan
Two different organisations are involved. A consultant helps you build the system and prove it works; an accredited certification body then audits or assesses it and decides. Keeping the two separate is what makes the result credible to buyers and regulators.
- Check that the body’s accreditation or approval covers ISO 42001 and your sector, and that its certificates can be verified online.
- Ask the consultant how the local requirements in Japan are mapped into the same system, so nothing runs twice.
- Ask for client references in your sector; Sterling’s client letters are available on request.
- Agree who owns the evidence and the tool after the engagement; with Sterling the system stays yours, in Effivity.
Laws and regulations that drive ISO 42001 in Japan (2)
| Instrument | How it treats the standard |
|---|---|
| AI Act (人工知能関連技術の研究開発及び活用の推進に関する法律), Cabinet Office | Expected in practice Promulgated and partly in force on 4 June 2025, fully in force from 1 September 2025; promotes AI while addressing risks; ISO/IEC 42001 not named. |
| ISMS Accreditation Center (ISMS-AC) — AIMS conformity assessment scheme | Accreditation Accredits AIMS (ISO/IEC 42001) certification bodies; accredited AIMS certification bodies are listed on the ISMS-AC register. |
"Expected in practice" means the instrument asks for the outcomes ISO/IEC 42001 covers without naming a standard, and ISO/IEC 42001 is what buyers and regulators commonly accept as evidence of them.
Accreditation, audit language and remote audits in Japan
Use a certification body accredited for ISO/IEC 42001 by ISMS-AC or by another accreditation body within the international mutual recognition arrangements (Global ACI — Global Accreditation Cooperation Incorporated, formerly the IAF MLA). Accredited AIMS certification bodies are listed on the ISMS-AC register. Edition and transition details: ISO/IEC 42001 hub →
Audit language
Japanese or English; agree the audit and document language with the certification body at application (JIS Q editions of the standard are available in Japanese).
Remote and on-site
Remote audit elements are at the certification body's discretion under its accreditation rules; operational sites are normally visited on-site.
ISO 42001 in Japan: questions clients ask
Does the Japanese AI Act require ISO 42001?
No. The AI Act promotes AI innovation and addresses risks, but it does not name ISO/IEC 42001. Certification is therefore voluntary. It can still help show customers a governed approach to AI, though the Act's own requirements should be checked with your counsel.
Which certification bodies are accredited for ISO 42001 in Japan?
Accredited AIMS certification bodies are listed on the ISMS-AC register, which shows each body's accreditation scope. Another accreditation body within the international mutual recognition arrangements is also possible. Check the register before you apply, as it can be updated, and confirm the scope covers your AI systems.
Can ISO 42001 sit on our ISMS?
Yes. ISMS-AC operates AIMS accreditation alongside its ISMS accreditation, and the two systems share a structure. A company with an existing ISMS can extend its documents and processes to cover AI management instead of starting afresh. Agree the combined scope with your certification body.
More on ISO 42001 for Japanese organisations
- ISO/IEC 42001: the complete guide
- Watch: How to implement ISO/IEC 42001
- Banking and financial services: ISO/IEC 42001 for the sector
- BPO and shared services: ISO/IEC 42001 for the sector
- Healthcare: ISO/IEC 42001 for the sector
- HR and staffing: ISO/IEC 42001 for the sector
- Professional services: ISO/IEC 42001 for the sector
- Retail and e-commerce: ISO/IEC 42001 for the sector
- Technology and software: ISO/IEC 42001 for the sector
- Sterling in Tokyo
- ISO 42001 certification in Japan and every other standard Sterling delivers there
Other standards Japanese businesses ask Sterling for
Organisations in Japan often combine ISO/IEC 42001 with one of these, under one management system where the scopes allow.
Start with a free discovery call from the Tokyo office
A Sterling consultant goes through your entities, your regulators and your target date with you. No proposal until the scope is agreed.
Sources
- AI Act (人工知能関連技術の研究開発及び活用の推進に関する法律), Cabinet Office — www8.cao.go.jp (accessed 5 Oct 2026)
- ISMS Accreditation Center (ISMS-AC) — AIMS conformity assessment scheme — isms.jp (accessed 5 Oct 2026)
- Management Matters Review (経営事項審査) for public works contractors — ktr.mlit.go.jp (accessed 5 Oct 2026)
- ISMAP (Information system Security Management and Assessment Program) — ismap.go.jp (accessed 5 Oct 2026)
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