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Health & Safety ISO 45001 2018

Occupational Health & Safety Management

International standard for occupational health and safety management systems. Provides a framework for managing OH&S risks, preventing work-related injury and ill health, and promoting safe workplaces.

construction manufacturing oil and gas mining
About This Standard

ISO 45001 is the international standard for occupational health and safety management systems, replacing OHSAS 18001 globally. It establishes a proactive framework for preventing work-related injury and ill health, managing OH&S risks and opportunities, and promoting safe and healthy workplaces.

A key distinction from OHSAS 18001 is ISO 45001's emphasis on worker participation, the integration of OH&S into organisational strategy, and the explicit requirement for top management leadership. The Annex SL structure enables seamless integration with ISO 9001 and ISO 14001.

ACI-certified ISO 45001 auditors are equipped to assess OH&S management system design and effectiveness, evaluate hazard elimination and risk-reduction controls, and review worker participation mechanisms.

Examination Topic Areas
OH&S hazard identification and risk assessment methodology
Legal compliance and worker consultation requirements
Leadership commitment and worker participation mechanisms
Emergency preparedness and OH&S incident investigation
Hierarchy of controls for hazard elimination and risk reduction
OH&S objectives and improvement programmes
Contractor and supply chain OH&S management
OH&S performance monitoring and internal audit
Examination & Certification Process
01
Attend Training

Attend an ACI-Approved Training Provider (ATP) course for your chosen grade level. ACI-approved courses are aligned to the examination syllabus for ISO 45001.

02
Sit the Examination

Examinations are administered exclusively through ACI Approved Training Providers. Foundation and Internal Auditor examinations require 70% to pass; Lead Auditor requires 65%.

03
Apply for Certification

Submit your application through the ACI portal with your examination result, training certificate, and relevant audit experience log. Upon approval you receive your ACI Card ID and digital certificate.

Scheme Details
Standard ISO 45001
Edition 2018
Category Health & Safety
Cert. Period 3 years
Framework ISO/IEC 17024 Aligned
Available Grades PA · AA · AU · LA · PR · FACI
All Certification Schemes
Auditor Grades

Available Grades for ISO 45001

All six ACI auditor grades are available for this scheme. Each grade has defined competence, experience, and examination requirements.

PA
Provisional Auditor

Entry-level certification for those beginning their auditing career. Suitable for individuals who have completed foundation training but have limited audit experience.

Foundation examination pass (70%)
No prior audit experience required
Annual CPD requirement applies
AA
Associate Auditor

For auditors who have completed Internal Auditor training and have begun accumulating audit experience under supervision or in an internal audit role.

Internal Auditor examination pass
Minimum 2 internal audits conducted
Annual CPD requirement applies
AU
Auditor

Full auditor grade for practitioners with demonstrated audit experience. Recognised as a competent independent auditor of management systems.

Internal Auditor examination pass
Minimum 5 complete audits
Annual CPD requirement applies
LA
Lead Auditor

Senior grade for experienced auditors capable of leading audit teams and managing full audit programmes. The most widely recognised auditor grade internationally.

Lead Auditor examination pass (65%)
Lead Auditor training course
Minimum 10 complete audits as team lead
PR
Principal Auditor

Advanced grade for highly experienced auditors demonstrating sustained performance in complex audit environments and contributions to the auditing profession.

Lead Auditor grade prerequisite
Minimum 5 years audit experience
Professional development portfolio
FACI
Fellow of ACI

The highest ACI designation, awarded to individuals who have made an exceptional contribution to the management system auditing profession and to the ACI community.

By nomination and committee review
Exceptional professional contribution
Sustained ACI membership
Ready to certify in ISO 45001?

Find an Approved Training Provider, sit the examination, and submit your application to ACI.