Comparison
ISO 42001 vs. NIST AI RMF
Certificate or framework? Understand the real difference before you spend.
| ISO/IEC 42001 | NIST AI RMF | |
| Type | Certifiable management-system standard | Voluntary risk management framework |
| Who issues proof | Accredited certification body | Nobody — self-assessed alignment |
| Audit | Stage 1 + Stage 2 audits | No audit; internal or third-party assessment |
| Certificate | Yes — 3 years, annual surveillance | No certificate exists |
| Best for | Proving AI governance to customers/regulators | Structuring an AI risk program |
| Cost | Audit fees ~$8k–$60k+ yr-1 (published ranges) | Framework is free; implementation cost varies |
The common answer: use NIST AI RMF to build the program, certify to ISO 42001 when you need proof. They complement each other.