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ISO 45001: complete guide, articles and resources

Occupational Health & Safety — expert articles, practical resources, and solutions to structure your certification project.

Version
ISO 45001:2018
Type
Certifiable standard
Articles
0 published
Definition

What is the ISO 45001 standard?

The ISO 45001 standard sets out the requirements of an occupational health and safety (OH&S) management system. Published in 2018, it has progressively replaced OHSAS 18001 and is the first ISO standard dedicated to workplace health and safety.

The standard is built on hazard identification, risk assessment, prevention of work-related injuries and ill health, and active worker participation. It adopts the High Level Structure (Annex SL), making it straightforward to integrate with ISO 9001 and ISO 14001.

ISO 45001 places strong emphasis on top management leadership, worker consultation and participation, control of external providers, and contextual analysis. It complements but does not replace OSHA, HSE, or other national regulatory regimes.

Who is ISO 45001 for?

The standard targets any organisation that employs workers, regardless of sector. It is particularly relevant for higher-risk industries (construction, chemicals, food processing, transport, manufacturing) but also for service sectors exposed to psychosocial risks.

Why get certified?

ISO 45001 certification helps to reduce workplace incidents, lower absenteeism, improve organisational culture, meet customer and prime contractor requirements, and reduce hidden costs (workers' compensation premiums, claims, litigation).

Version
ISO 45001:2018
Certified
290,000+
Validity
3 years
Avg. timeline
6 to 12 months
Articles & guides

All our articles on ISO 45001

Articles coming soon. In the meantime, here is a selection from related standards.
Frequently asked questions

Everything you need to know about ISO 45001

What's the difference between ISO 45001 and OHSAS 18001?
ISO 45001 replaced OHSAS 18001 in 2018. It brings the High Level Structure, a stronger focus on leadership, worker consultation, control of external providers, and integration of organisational context. All OHSAS 18001 certificates expired in September 2021.
Does ISO 45001 replace OSHA requirements?
No. OSHA (or local equivalents like HSE in the UK) remain mandatory regulatory obligations regardless of certification. ISO 45001 sits alongside these regulations and structures the OH&S approach more broadly (leadership, planning, continual improvement).
How much does ISO 45001 certification cost?
For a mid-sized company, expect $5,500 to $15,000 for initial audit fees. The total cost depends on number of sites, headcount, and the risk level of operations.
Can ISO 45001 be combined with ISO 9001 and ISO 14001?
Yes, this is best practice. All three standards share the High Level Structure and can be integrated into a single QHSE system with combined audits.
How long does it take to obtain ISO 45001 certification?
Expect 6 to 12 months depending on your starting maturity level, scope, and the risk profile of your operations.
Related standards

Connected references

ISO 45001 is often deployed alongside other standards to build an integrated management system.

ISO 9001
Quality Management
ISO 14001
Environmental Management
QHSE
Integrated Management System
ISO 26000
Social Responsibility
HACCP
Hazard Analysis and Critical Control Points
ISO 22000
Food Safety Management

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