ISO 45001 certification: workplace health and safety guide

Overview

What ISO 45001 covers, why employers use it, and the steps to certify an occupational health and safety management system.

What it is

ISO 45001:2018 is the certifiable international standard for occupational health and safety management systems. It covers leadership, worker consultation and participation, hazards, legal requirements, risks and opportunities, operational controls, emergency response, incidents, audits, and improvement.

Why it matters

A functioning system can reduce workplace harm, improve participation and preparedness, and provide customers or supply chains with independent assurance. Certification does not replace employment, safety, reporting, insurance, or regulator duties.

How to obtain it or demonstrate compliance

1. Define the legal entity, sites, products, services, and processes inside the certification scope.
2. Buy or lawfully access the current standard and perform a documented gap assessment.
3. Implement objectives, responsibilities, controls, records, competence, and corrective-action processes.
4. Complete internal audits and a management review, then close identified gaps.
5. Select a competent certification body—preferably accredited for the standard and sector—and verify its status.
6. Complete the stage 1 and stage 2 audits, correct nonconformities, and maintain certification through surveillance and recertification.

What to review

1. Confirm the current edition, certification scope, sites, legal entities, exclusions, and certificate validity.
2. Map applicable laws, regulator duties, contracts, customer requirements, and sector-specific controls separately from the voluntary standard.
3. Test whether policies operate in practice and whether records support each material claim before the external audit.
4. Describe the standard, edition, scope, certification body, accreditation, and limitations accurately in procurement and marketing.

What to do next

Treat certification as an operating system, not a document project. Assign accountable owners, measure performance, investigate failures, correct root causes, and keep evidence current between audits.

Official sources and further reading

• ISO 45001:2018 — Occupational health and safety management systems — International Organization for Standardization
• Certification — ISO does not perform certification — International Organization for Standardization